CN103485243A

CN103485243A - Installation, jacking and leveling method of prefabricated floating slab in floating slab track bed

Info

Publication number: CN103485243A
Application number: CN201310472975.XA
Authority: CN
Inventors: 白廷辉; 尹学军; 毕湘利; 刘加华; 张明; 孙军溪; 刘富; 范利辉; 张宝才; 孔祥斐; 王乾安; 王永国; 尚旭东
Original assignee: GERB (QINGDAO) VIBRATION CONTROL CO Ltd
Current assignee: GERB (QINGDAO) VIBRATION CONTROL CO Ltd
Priority date: 2013-10-11
Filing date: 2013-10-11
Publication date: 2014-01-01
Anticipated expiration: 2033-10-11
Also published as: CN103485243B

Abstract

The invention belongs to the field of track traffic, and relates to an installation, jacking and leveling method of a floating slab in a floating slab track bed, in particular to an installation, jacking and leveling method of a prefabricated floating slab in the floating slab track bed. The installation, jacking and leveling method of the prefabricated floating slab in the floating slab track bed is simple to operate. As proved by project trail laying, the prefabricated floating slab does not need to be heightened or leveled repeatedly in the installation process, one time of heightening and leveling can be basically achieved, and the method is quite convenient and rapid to operate, overcomes the technical bottlenecks of existing operation methods, further improves construction speed, meets the requirements of construction cycles, and largely improves the technical applicability of a steel spring floating slab track bed, thereby enabling the prefabricated floating slab to be quite wide in market application prospect.

Description

The installation jacking leveling method of prefabricated floating plate in the floating plate railway roadbed

Technical field

The invention belongs to field of track traffic, especially relate to the installation jacking leveling method of floating plate in a kind of floating plate railway roadbed, be specially the installation jacking leveling method of prefabricated floating plate in a kind of floating plate railway roadbed.

Background technology

Vibration and noise are influence surface that people are generally acknowledged the most a kind of public hazards, are also the difficult problems urgently to be resolved hurrily that track traffic in recent years development faces.In the noise reduction technology of existing track traffic, what practical application was the most successful is the member livitation, be typically floating plate road bed technique, its vibration isolation efficiency is high, stable work in work, become common recognition in the industry, the disclosed built-in type floating plate of the Chinese patent ballast bed structure that for example patent No. is ZL200410035441.1.But the construction period of existing floating plate railway roadbed is generally longer, and standard floating plate length is 25m, the speed of all being constructed in tunnel the earliest can only realize that average each working group completes 5m every day; Then earthing, Shen, Shanghai Inland Steel and Qingdao Ge Ergu company develop precast reinforced cage construction technology jointly, after the good reinforcing cage of the first colligation in ground again lifting enter the job practices of carrying out filling concrete in tunnel, the job schedule of each working group every day is brought up to the 30m left and right.Because the reinforcing cage size is larger, to often need on tunnel, offering special passage during transportation in tunnel, very inconvenient, in addition, although the reinforcing cage construction method has significantly improved construction speed, but still can not meet well the requirement of engineering construction duration, many subway vibration isolation location can't meet to yield and uses floating plate railway roadbed vibration isolation technique, the hidden danger that causes vibration to disturb residents because of the duration.For addressing this problem, the technician of Shen, Shanghai earthing Inland Steel and Qingdao Ge Ergu company develops again a kind of novel floating plate ballast bed structure that plate length is no more than the floating plate of 8 meters of applying, and as application number, is specifically 201220091895.0 described in Chinese patent.This novel floating plate ballast bed structure, because the floating plate plate is long shorter, can in tunnel, be transported easily, therefore floating plate can carry out on ground the prefabricated suitability for industrialized production, so also referred to as the prefabricated floating plate, by this floating plate again handling assemble construction to tunnel, can greatly improve speed of application, the quality of floating plate also more easily guarantees.But, because the plate of floating plate is long shorter, effect is stuck up in turning over of producing when preventing that vehicle from entering from plate body one end, in plate body, arranges Elastic Isolator, also is provided with plate end isolation mounting between adjacent floating plate.For the sake of security, the vertical stiffness of single plate end isolation mounting is greater than the vertical stiffness of other single Elastic Isolators that arrange in floating plate usually, in test, find, the difference of this vertical stiffness, influence each other, while causing floating plate to adopt traditional approach to carry out jacking and leveling, need to repeatedly heighten the design elevation requirement that leveling could meet railway roadbed, therefore affect to a certain extent the progress of whole construction.

How to solve prefabricated floating plate jacking leveling length consuming time, the slow problem of speed of application in the floating plate railway roadbed, become the difficult problem in the industry that this technology of restriction is further applied.

Summary of the invention

The object of the invention is to overcome above-mentioned defect, the installation jacking leveling method of prefabricated floating plate in a kind of simple, quick, maneuverable floating plate railway roadbed is provided.

In floating plate railway roadbed of the present invention, the installation jacking leveling method of prefabricated floating plate is achieved in that when the prefabricated floating plate is supported jointly by plate end isolation mounting and built-in Elastic Isolator, comprises the steps:

(1) the prefabricated floating plate identified according to line on the railway roadbed basis and the plan-position of plate end isolation mounting, plate end isolation mounting is placed in to precalculated position, again pre-processed prefabricated floating plate is utilized hoisting transportation equipment to be placed on plate end isolation mounting, the plan-position of adjusting the prefabricated floating plate;

(2) using arbitrary end of prefabricated floating plate as free end, the other end of prefabricated floating plate is as adjusting end, utilize jack at prefabricated floating plate plate body longitudinal centre line place by the free end jack-up of prefabricated floating plate, until the plate end vibration isolator that the free end of prefabricated floating plate and its below arrange breaks away from fully, the prefabricated floating plate enters the static determinacy state of three-point support, and the prefabricated floating plate is supported jointly by the jack of its free end setting and the plate end vibration isolator of adjustment end both sides setting;

(3) measure respectively the actual height of the prefabricated floating plate plate body upper surface of respective panels end isolation mounting position, prefabricated floating plate adjustment end both sides with respect to the disjunction mark of laying a railway track, the design elevation of contrast railway roadbed, calculate difference between the two, utilize this difference to deduct again the thickness that comprehensive leveling compensation rate is adjusted the required height adjusting cushion plate of end each plate end isolation mounting of both sides;

(4) jack is let out and carried, make the free end of prefabricated floating plate fall to being back on the plate end isolation mounting of its below setting, the recycling jack is the adjustment end jack-up by the prefabricated floating plate at prefabricated floating plate plate body longitudinal centre line place, until the plate end vibration isolator that the adjustment end of prefabricated floating plate and its below arrange breaks away from fully, the prefabricated floating plate enters the static determinacy state of three-point support;

(5) place respectively the height adjusting cushion plate of respective thickness on each the plate end isolation mounting arranged in prefabricated floating plate adjustment end both sides;

(6) measure respectively the actual height of the prefabricated floating plate plate body upper surface of respective panels end isolation mounting position, prefabricated floating plate free end both sides with respect to the disjunction mark of laying a railway track, the design elevation of contrast railway roadbed, calculate difference between the two, utilize this difference to deduct again the thickness that comprehensive leveling compensation rate obtains the required height adjusting cushion plate of each plate end isolation mounting of free end both sides;

(7) jack is let out and carried, prefabricated floating plate adjustment end is fallen, utilize jack by the free end of prefabricated floating plate jack-up again, place respectively the height adjusting cushion plate of respective thickness on each the plate end isolation mounting arranged in prefabricated floating plate free end both sides, then prefabricated floating plate free end is fallen again, complete the first jacking leveling of a prefabricated floating plate;

(8) in the joint sheeve be fixedly installed in the prefabricated floating plate, put into built-in Elastic Isolator, in advance according to the gross mass of prefabricated floating plate, the quantity of plate end isolation mounting, the quantity of Elastic Isolator, the vertical stiffness of plate end isolation mounting and the vertical stiffness of Elastic Isolator, determine the single static determinacy load of theory that each Elastic Isolator is born, using the single static determinacy load value of this theory as adjusting load, utilize jack to apply the adjustment load of identical numerical value on Elastic Isolator, clearance height between Elastic Isolator upper surface and support stop soffit is the required thickness of heightening pad, the pad of heightening of respective thickness is set on Elastic Isolator, complete the leveling of jacking for the second time of this prefabricated floating plate,

(9) measure respectively prefabricated floating plate free end and adjust the actual height of the prefabricated floating plate plate body upper surface of end respective panels end isolation mounting position, both sides with respect to the disjunction mark of laying a railway track, the design elevation of contrast railway roadbed, calculate difference between the two, again adjust the height adjusting cushion plate gross thickness between prefabricated floating plate and correspondence position plate end isolation mounting according to height difference, until prefabricated floating plate height meets design requirement, complete the accurate jacking leveling of this prefabricated floating plate;

(10) repeat above-mentioned steps, complete one by one the accurate jacking leveling of all prefabricated floating plates in ballast bed structure, realize the installation jacking leveling of prefabricated floating plate in the floating plate railway roadbed.

Wherein, comprehensive leveling compensation method for determination of amount is, using the weight of prefabricated floating plate as static load, calculate the average decrement had elastic component when the prefabricated floating plate is only provided support by all plate end isolation mountings, calculate the average decrement had elastic component when the prefabricated floating plate is supported jointly by all plate end isolation mountings and built-in Elastic Isolator, comprehensive leveling compensation rate is the absolute value of the difference of secondary calculating averaging of income decrement again.

In order further to improve efficiency of construction, while in step (1), putting the prefabricated floating plate, can be according to the described method of step (1), place in proper order and adjust the plan-position of polylith prefabricated floating plate, form at least one workshop section is installed, again each piece prefabricated floating plate of installing in workshop section is implemented to first jacking leveling, jacking leveling for the second time and accurate jacking leveling, thereby realize the installation jacking leveling of prefabricated floating plate in the floating plate railway roadbed.This form of construction work, be conducive to strengthen the continuity of constructing operation, optimizes the inter process flow process, and then effectively improve efficiency of construction.Its Specific construction mode of operation can be varied, for example, can select to install an end of workshop section as initial, implement continuously first jacking leveling, jacking leveling for the second time and accurately jacking leveling to each piece prefabricated floating plate in workshop section is installed successively, thereby realize the installation jacking leveling of prefabricated floating plate in the floating plate railway roadbed; Also can select to install an end of workshop section as initial, successively to after in installation workshop section, all prefabricated floating plates are implemented first jacking leveling, to being installed, all prefabricated floating plates in workshop section carry out jacking leveling for the second time successively again, and then carry out accurate jacking leveling to all prefabricated floating plates in workshop section are installed successively, thereby realize the installation jacking leveling of prefabricated floating plate in the floating plate railway roadbed; Can also be to after in installation workshop section, all prefabricated floating plates be implemented first jacking leveling and jacking leveling for the second time, setting up rail on the prefabricated floating plate under installation workshop section, measure relatively the lay a railway track actual height of disjunction mark of plate end isolation mounting corresponding position tread in each prefabricated floating plate, contrast Track desigh elevation, increase and decrease height adjusting cushion plate accordingly on plate end isolation mounting according to comparing result, until complete the accurate jacking leveling that all prefabricated floating plates in workshop section are installed, realize the installation jacking leveling of prefabricated floating plate in the floating plate railway roadbed.In addition, when tread, relatively lay a railway track the difference of the actual height of disjunction mark and Track desigh elevation while being less than 2mm, utilize railway rail pad to carry out leveling, no longer adjust the height adjusting cushion plate thickness on respective panels end vibration isolator.This operating type can effectively reduce jacking prefabricated floating plate and proofread and correct the number of times of prefabricated floating plate plan-position, thereby reduces difficulty of construction, improves efficiency of construction.

For the situation of shared plate end isolation mounting is set between contiguous prefabricated formula floating plate in the floating plate ballast bed structure, in first jacking leveling process, before measuring the actual height of prefabricated floating plate upper surface with respect to the disjunction mark of laying a railway track corresponding to common plate end isolation mounting place, need all be placed in advance on this plate end isolation mounting by adjacent two prefabricated floating plates and adjust plan-position, then the non-adjacent end of two prefabricated floating plates is jack-uped at prefabricated floating plate plate body longitudinal centre line place respectively, make adjacent two prefabricated floating plates static determinacy state in three-point support simultaneously, and make plate end isolation mounting shared between adjacent two prefabricated floating plates to the abutting end of the two prefabricated floating plates bearing state of remaining valid, the disjunction mark of relatively laying a railway track is again implemented to measure.In order to overcome the adverse effect that various early stages, construction error was brought, reduce and repeatedly adjust number of times, be in step (1), after utilizing hoisting transportation equipment to be placed on plate end isolation mounting pre-processed prefabricated floating plate, at first confirm between each plate end isolation mounting and prefabricated floating plate to remain valid supporting, set in advance height adjusting cushion plate on the plate end isolation mounting of not realizing fully contacting with prefabricated floating plate bottom surface, until all realize effectively supporting between all plate end isolation mountings and prefabricated floating plate, and then the prefabricated floating plate is implemented to first jacking leveling, jacking leveling for the second time and accurate jacking leveling operation.By these above-mentioned measures, plate end isolation mounting stressed actual forced status during closer to static load, so measurement result is more accurate, also have more directive significance, the thickness of determining accordingly required height adjusting cushion plate is more accurate reasonable, can effectively reduce the adjustment number of times, improves efficiency of construction.

In addition, the adverse effect of bringing for the height error of eliminating the railway roadbed foundation construction, in step (1), on the railway roadbed basis before board for putting end isolation mounting, at first measure each center, plate end isolation mounting plan-position that on the railway roadbed basis, line identifies actual height with respect to the disjunction mark of laying a railway track, the design height on contrast railway roadbed basis, part lower than design height is recompensed by the height adjusting cushion plate that increases respective thickness on plate end vibration isolator, the adverse effect caused to eliminate railway roadbed foundation construction error, and then utilize hoisting transportation equipment be placed on plate end isolation mounting by the prefabricated floating plate and adjust horizontal level.It should be noted that, for the ease of utilizing height adjusting cushion plate to compensate adjustment, in the railway roadbed foundation construction process in early stage, the height tolerance on railway roadbed basis only arranges lower limit, be that the railway roadbed basis only allows the design height less than or equal to standard, should be higher than the design height of standard.

According to know-why of the present invention, also can utilize hanging device to substitute jack slings the free end of prefabricated floating plate or adjustment end along plate body longitudinal centre line place, until the free end of prefabricated floating plate or adjustment end break away from fully with the plate end vibration isolator that its below arranges, the prefabricated floating plate enters the static determinacy state of three-point support.In addition, when utilizing hanging device to be operated, can implement as follows: utilize hanging device to substitute the sling free end of prefabricated floating plate of jack, determine the thickness of adjusting the required height adjusting cushion plate of end each plate end isolation mounting of both sides, fall free end, sling the again adjustment end of prefabricated floating plate, determine the thickness of the required height adjusting cushion plate of each plate end isolation mounting of free end both sides, then utilize hanging device that the free end of prefabricated floating plate is also sling, make prefabricated floating plate integral body in the state of suspending, place respectively the height adjusting cushion plate of respective thickness on each plate end isolation mounting of prefabricated floating plate free end and the both sides setting of adjustment end, then prefabricated floating plate integral body is fallen, complete the first jacking leveling of a prefabricated floating plate.It is pointed out that because the suspend horizontal level of rear plate body of prefabricated floating plate integral body easily is moved, therefore, after prefabricated floating plate integral body falls, should reaffirm the horizontal level of prefabricated floating plate.The advantage of this adjustment mode is, the height adjusting cushion plate on all plate ends isolation mounting of prefabricated floating plate two ends can disposablely be dosed complete, can reduce the link of transporting of height adjusting cushion plate, strengthens the continuity of constructing operation.

In addition, it is to be noted, while utilizing the jack pair Elastic Isolator to load in step (8), can take to utilize the Elastic Isolator arranged in jack pair prefabricated floating plate plate body to be loaded one by one and arrange the mode of operation of heightening pad; Also can be for each Elastic Isolator in prefabricated floating plate plate body corresponding a jack be set, utilize compression pump to drive each Elastic Isolator in all jack pair prefabricated floating plates to apply respectively adjustment load simultaneously, then arrange and heighten pad on Elastic Isolator, this adjustment mode, the stressing conditions of each Elastic Isolator is closer to best duty, precision is higher, and better effects if can significantly improve efficiency of construction.In general, the actual adjustment load that each Elastic Isolator of jack pair applies is 0.9～1.1 times of theoretical single static determinacy load value, this be because, for operating modes such as curved sections, the Elastic Isolator that the inside and outside both sides of track arrange stressed different, so also difference to some extent of the adjustment load applied.

The form of the Elastic Isolator that the present invention is applicable can be varied, is specifically as follows steel spring vibration isolator, rubber shock absorber, rubber-metal composite vibration isolator or air cushion shock absorber etc.

The installation jacking leveling method of prefabricated floating plate in floating plate railway roadbed of the present invention, simple to operate, engineering examination paving result shows, in installation process, do not need repeatedly the prefabricated floating plate to be heightened to leveling, substantially can realize the disposable leveling of heightening, very convenient quick, it has overcome the technical bottleneck of existing method of operating, be conducive to further improve speed of application, meet the requirement of construction period, it has improved the applicability of steel spring floating slab road bed technology greatly, and market application foreground is very wide.

The accompanying drawing explanation

One of structural representation that Fig. 1 is the floating plate railway roadbed.

Fig. 2 is the A-A sectional view in Fig. 1.

The schematic diagram that coordinates that Fig. 3 is prefabricated floating plate and plate end isolation mounting before first jacking leveling.

Fig. 4 be in first jacking leveling process prefabricated floating plate and plate end isolation mounting and jack coordinate one of schematic diagram.

Fig. 5 is the B-B sectional view in Fig. 4.

Fig. 6 is for coordinating one of schematic diagram through the prefabricated floating plate of first jacking leveling and plate end isolation mounting.

Fig. 7 coordinates one of schematic diagram through the prefabricated floating plate of jacking leveling for the second time and plate end isolation mounting.

Two of the structural representation that Fig. 8 is the floating plate railway roadbed.

Fig. 9 is the E-E sectional view in Fig. 8.

Figure 10 be in first jacking leveling process prefabricated floating plate and plate end isolation mounting and jack coordinate two of schematic diagram.

Figure 11 is the F-F sectional view in Figure 10.

Figure 12 is for coordinating two of schematic diagram through the prefabricated floating plate of first jacking leveling and plate end isolation mounting.

Figure 13 coordinates two of schematic diagram through the prefabricated floating plate of jacking leveling for the second time and plate end isolation mounting.

The specific embodiment

Embodiment mono-

Below with every prefabricated floating plate in the floating plate railway roadbed, by four plate end isolation mountings and four built-in Elastic Isolators, jointly be supported for example, the operating process of the installation jacking leveling method of prefabricated floating plate in floating plate railway roadbed of the present invention is illustrated.Understand for convenience the inventive method, at first the basic structure of related floating plate railway roadbed is described.The typical structure of described floating plate railway roadbed as shown in Figures 1 and 2, take prefabricated floating plate 2 as example, it is supported jointly by four plate end isolation mountings 4 and four built-in Elastic Isolators 8, break away from basic 6 surfaces, Elastic Isolator 8 is placed in the joint sheeve 5 be fixedly installed in prefabricated floating plate 2, in addition, be provided with and heighten pad 9 between support stop 10 in Elastic Isolator 8 end faces and joint sheeve 5, between plate end isolation mounting 4 and prefabricated floating plate 2, height adjusting cushion plate 7 is set, in order to guarantee prefabricated floating plate smooth transition load in the course of the work, cooperative bearing, also be provided with shear hinge 11 between the prefabricated floating plate, the each several part that shear hinge 11 is positioned on contiguous prefabricated formula floating plate carries out leveling by backing plate 12, align position each other.The track structures such as rail, fastener and sleeper are arranged on the prefabricated floating plate, at this, for the ease of seeing other structures clearly, in the drawings track structure are not specifically illustrated, hereby explanation.

Below take prefabricated floating plate 2 as example, illustrate shown in Fig. 1 and Fig. 2 the installation jacking leveling method of prefabricated floating plate in floating plate railway roadbed of the present invention, specific operation process is as follows:

(1) the prefabricated floating plate 2 identified according to line on railway roadbed basis 6 and the plan-position of plate end isolation mounting 4, plate end isolation mounting 4 is placed in to precalculated position, again pre-processed prefabricated floating plate 2 is utilized hoisting transportation equipment to be placed on plate end isolation mounting 4, adjust the plan-position of prefabricated floating plate 2, as shown in Figure 3;

(2) as shown in Figure 4 and Figure 5, using arbitrary end of prefabricated floating plate 2 as free end C, the other end of prefabricated floating plate is as adjusting end D, utilize jack 30 at prefabricated floating plate 2 plate body longitudinal centre line places by the free end C jack-up of prefabricated floating plate 2, until the plate end vibration isolator 4 that the free end C of prefabricated floating plate 2 and its below arrange breaks away from fully, prefabricated floating plate 2 enters the static determinacy state of three-point support, and the plate end vibration isolator 4 that the jack 30 that prefabricated floating plate 2 is arranged by its free end C place and adjustment end D both sides arrange supports jointly;

(3) measure respectively prefabricated floating plate 2 and adjust the actual height of the prefabricated floating plate plate body upper surface of end respective panels end isolation mounting position, D both sides with respect to the disjunction mark (not shown) of laying a railway track, the design elevation of contrast railway roadbed, calculate difference between the two, utilize this difference to deduct again the thickness that comprehensive leveling compensation rate is adjusted the required height adjusting cushion plate of end each plate end isolation mounting of both sides;

(4) jack 30 is let out and carried, make the free end C of prefabricated floating plate 2 fall to being back on the plate end isolation mounting 4 of its below setting, the recycling jack is the adjustment end jack-up by the prefabricated floating plate at prefabricated floating plate plate body longitudinal centre line place, until the plate end vibration isolator that the adjustment end of prefabricated floating plate and its below arrange breaks away from fully, the prefabricated floating plate enters the static determinacy state of three-point support;

(5) adjust at prefabricated floating plate 2 height adjusting cushion plate 7 of placing respectively respective thickness on each plate end isolation mounting 4 of holding the D both sides to arrange;

(6) measure respectively the actual height of the prefabricated floating plate plate body upper surface of prefabricated floating plate 2 respective panels end isolation mounting positions, free end C both sides with respect to the disjunction mark of laying a railway track, the design elevation of contrast railway roadbed, calculate difference between the two, utilize this difference to deduct again the thickness that comprehensive leveling compensation rate obtains each plate end isolation mounting 4 required height adjusting cushion plate of free end C both sides;

(7) jack 30 is let out and carried, making prefabricated floating plate 2 adjust end D falls, utilize jack 30 by the free end C of prefabricated floating plate 2 jack-up again, place respectively the height adjusting cushion plate 7 of respective thickness on each the plate end isolation mounting arranged in prefabricated floating plate free end both sides, then prefabricated floating plate free end is fallen again, complete the first jacking leveling of prefabricated floating plate 2, as shown in Figure 6;

(8) in the joint sheeve 5 be fixedly installed, put into built-in Elastic Isolator 8 in prefabricated floating plate 2, in advance according to the gross mass of prefabricated floating plate, the quantity of plate end isolation mounting, the quantity of Elastic Isolator, the vertical stiffness of plate end isolation mounting and the vertical stiffness of Elastic Isolator, determine the single static determinacy load of theory that each Elastic Isolator 8 is born, using the single static determinacy load value of this theory as adjusting load, utilize jack to apply the adjustment load of identical numerical value on Elastic Isolator, clearance height between Elastic Isolator upper surface and support stop soffit is the required thickness of heightening pad, what respective thickness was set on Elastic Isolator heightens pad 9, complete the leveling of jacking for the second time of prefabricated floating plate 2,

(9) measure respectively prefabricated floating plate 2 free end C and adjust the actual height of the prefabricated floating plate plate body upper surface of end respective panels end isolation mounting position, D both sides with respect to the disjunction mark of laying a railway track, the design elevation of contrast railway roadbed, calculate difference between the two, again adjust height adjusting cushion plate 7 gross thickness between prefabricated floating plate 2 and correspondence position plate end isolation mounting 4 according to height difference, until prefabricated floating plate 2 highly meets design requirement, complete the accurate jacking leveling of this prefabricated floating plate, its state as shown in Figure 7;

Wherein, comprehensive leveling compensation method for determination of amount is, using the weight of prefabricated floating plate 2 as static load, calculate the average decrement had elastic component when prefabricated floating plate 2 is only provided support by four plate end isolation mountings 4, the average decrement had elastic component while calculating again prefabricated floating plate 2 by four plate end isolation mountings 4 and four common supports of Elastic Isolator 8, comprehensive leveling compensation rate is the absolute value of the difference of secondary calculating averaging of income decrement.The specific algorithm of comprehensive leveling compensation rate and adjustment load can, with reference to following formula, for convenience of description, first be defined as follows following parameters:

M---the gross mass of prefabricated floating plate;

G---acceleration of gravity;

N ₁---every prefabricated floating plate correspondence arranges the total quantity of plate end isolation mounting;

N ₂---every prefabricated floating plate correspondence arranges the total quantity of Elastic Isolator;

K ₁---the vertical global stiffness of single plate end isolation mounting;

K ₂---the vertical global stiffness of single Elastic Isolator;

The design elevation value of H---railway roadbed;

The plate body upper surface of h---the respective panels end isolation mounting position, end of measurement prefabricated floating plate is with respect to the actual height of the disjunction mark of laying a railway track;

H ₁---the weight of prefabricated floating plate is as dead weight on all plate end isolation mountings and Elastic Isolator the time, the average decrement of the theory had elastic component obtained;

H _x---when the weight of prefabricated floating plate only acts on all plate end isolation mountings as static load, the average decrement of the theory had elastic component obtained;

S ₁---the thickness of the required height adjusting cushion plate of plate end isolation mounting;

T---comprehensive leveling compensation rate;

The single static determinacy load of the theory that F---Elastic Isolator is born, adjust load.

The above-mentioned parameter definition is applicable to all embodiment of the present invention, in this special instruction.According to the definition of above-mentioned parameter and the concrete technical scheme of this example, can derive following formula:

H ₁=Mg/（n ₁*K ₁+n ₂*K ₂） ①

H ₂=Mg/（n ₁*K ₁） ②

t=H ₂-H ₁ ③

S ₁=（H-h）-t ④

F=K ₂*H ₁ ⑤

Due to above-mentioned parameter or can obtain in the design stage, perhaps can by instruments such as level gauges, measure at the scene, all can obtain numerical value accurately, therefore by formula 1., formula 2., formula 3., formula 4. with formula 5., just can draw very soon in step (3) and step (6) on plate end isolation mounting 4 required adjustment load on the thickness of required height adjusting cushion plate 7 and step (8) Elastic vibration isolator 8, and then can realize fast the jacking leveling to the prefabricated floating plate.In practical operation, can set design formulas by the Microsoft Excel in computer, data with existing is inputted in advance, after again data measured being listed in after in-site measurement, get final product, operate more simple and efficient.Above-mentioned formula is applicable to all embodiment of the present invention, no longer is repeated in this description, and at this, illustrates in the lump.

This example only is supported for example with every prefabricated floating plate in the floating plate railway roadbed by four plate end isolation mountings and four internal elastic vibration isolators simultaneously and describes, during practical application, difference according to plate length, two, six, eight even more Elastic Isolators also can be set in the prefabricated floating plate, certainly, the quantity of plate end isolation mounting also can change to some extent, can be applicable to the installation jacking leveling method of prefabricated floating plate in floating plate railway roadbed of the present invention.When plate end isolation mounting or/and the quantity of Elastic Isolator while changing, only needs to calculate a corresponding comprehensive leveling compensation rate with reference to above-mentioned comprehensive leveling compensation method for determination of amount gets final product.In the engineering application, for saving time, can be after the floating plate railway roadbed have designed, plate end isolation mounting and Elastic Isolator configuration according to each piece prefabricated floating plate, precompute the comprehensive leveling compensation rate that each plate end isolation mounting is corresponding, contrast at the scene corresponding prefabricated floating plate and directly apply and get final product.

After realizing the installation leveling of prefabricated floating plate in the floating plate railway roadbed, then assemble the track structures such as shear hinge, rail, fastener and sleeper on the prefabricated floating plate, form complete floating plate ballast bed structure as depicted in figs. 1 and 2.Certainly according to the operating habit difference, also can assemble in advance the elements such as rail, fastener, sleeper or shear hinge on the prefabricated floating plate, but before unrealized final installation leveling, the retaining element such as shear hinge, fastener must not be locked, in order to avoid change the normal allocation of prefabricated floating plate static load on flexible member, cause measure error, the leveling effect is installed in impact.

In addition, the inventive method is in concrete application process, also can utilize hanging device to substitute jack slings the free end of prefabricated floating plate or adjustment end along plate body longitudinal centre line place, until the free end of prefabricated floating plate or adjustment end break away from fully with the plate end vibration isolator that its below arranges, the prefabricated floating plate enters the static determinacy state of three-point support.When due to the prefabricated floating plate, along plate body, two ends utilize hanging device to sling simultaneously longitudinally, prefabricated floating plate integral body still can keep stable in the state of suspending, therefore when first jacking leveling, can be also to be operated as follows: utilize hanging device to substitute the sling free end of prefabricated floating plate of jack, determine the thickness of adjusting the required height adjusting cushion plate of end each plate end isolation mounting of both sides, fall free end, sling the again adjustment end of prefabricated floating plate, determine the thickness of the required height adjusting cushion plate of each plate end isolation mounting of free end both sides, then utilize hanging device that the free end of prefabricated floating plate is also sling, make prefabricated floating plate integral body in the state of suspending, place respectively the height adjusting cushion plate of respective thickness on each plate end isolation mounting of prefabricated floating plate free end and the both sides setting of adjustment end, then prefabricated floating plate integral body is fallen, complete the first jacking leveling of a prefabricated floating plate.It is pointed out that because the suspend horizontal level of rear plate body of prefabricated floating plate integral body may be moved, therefore, after prefabricated floating plate integral body falls, should reaffirm the horizontal level of prefabricated floating plate.The advantage of this adjustment mode is, the height adjusting cushion plate on all plate ends isolation mounting of prefabricated floating plate two ends can disposablely be dosed complete, can reduce the link of transporting of height adjusting cushion plate, strengthens the continuity of constructing operation.This application process also goes in other embodiments of the invention, among the protection domain all required in the present invention.

The installation leveling method of prefabricated floating plate in floating plate railway roadbed of the present invention, simple to operate, engineering examination paving result shows, in installation process, does not need repeatedly the prefabricated floating plate to be heightened to leveling, substantially can realize the disposable leveling of heightening, very convenient quick, the technical bottleneck that it has overcome existing method of operating, be conducive to further improve speed of application, meets the requirement of construction period, it has improved the applicability of steel spring floating slab road bed technology greatly, and market application foreground is very wide.

Embodiment bis-

The described floating plate railway roadbed of the embodiment mono-of still take is example, every prefabricated floating plate is supported jointly by four plate end isolation mountings 4 and four built-in Elastic Isolators 8, different from embodiment mono-, in this routine described floating plate railway roadbed of the present invention in the installation jacking leveling method of prefabricated floating plate, while in step (1), putting the prefabricated floating plate, according to the described method of step (1), place in proper order and adjust the plan-position of polylith prefabricated floating plate, form at least one workshop section is installed, again each piece prefabricated floating plate of installing in workshop section is implemented to first jacking leveling, jacking leveling for the second time and accurate jacking leveling, thereby realize the installation jacking leveling of prefabricated floating plate in the floating plate railway roadbed.

The installation jacking leveling method of prefabricated floating plate in this routine described floating plate railway roadbed of the present invention, the first jacking leveling of prefabricated floating plate, jacking leveling for the second time and accurate jacking leveling method of operating are identical with the method described in embodiment mono-, at this, no longer are repeated in this description.

With embodiment mono-, compare, the installation jacking leveling method of prefabricated floating plate in this routine described floating plate railway roadbed, be conducive to strengthen the continuity of constructing operation, optimizes the inter process flow process, and then effectively improve efficiency of construction.

Embodiment tri-

The floating plate railway roadbed of embodiment mono-described structure of still take is example, the know-why based on embodiment mono-and embodiment bis-, and in floating plate railway roadbed of the present invention, the installation jacking leveling method of prefabricated floating plate can also be done following differentiation, and its specific operation process is as follows:

(1) the prefabricated floating plate identified according to line on the railway roadbed basis and the plan-position of plate end isolation mounting, plate end isolation mounting is placed in to precalculated position, again pre-processed prefabricated floating plate is utilized hoisting transportation equipment to be placed on plate end isolation mounting, adjust the plan-position of prefabricated floating plate, according to the method described above, place in proper order and adjust the plan-position of polylith prefabricated floating plate, form at least one workshop section is installed;

(2) select to install an end of workshop section as initial, using initiating terminal corresponding first prefabricated floating plate along plate body longitudinally arbitrary end as free end, this prefabricated floating plate along plate body longitudinally the other end as adjusting end, utilize jack at floating plate plate body longitudinal centre line place the free end jack-up by the prefabricated floating plate, until the plate end vibration isolator that the free end of prefabricated floating plate and its below arrange breaks away from fully, the prefabricated floating plate enters the static determinacy state of three-point support, be that the plate end vibration isolator that the prefabricated floating plate is arranged by the jack of its free end setting and adjustment end both sides supports jointly,

(8), according to the first jacking leveling step of above-mentioned prefabricated floating plate, complete successively the first jacking leveling that all prefabricated floating plates in workshop section are installed;

(9) in the joint sheeve be fixedly installed, put into built-in Elastic Isolator in first prefabricated floating plate of workshop section's initiating terminal is installed, in advance according to the gross mass of prefabricated floating plate, the quantity of plate end isolation mounting, the quantity of Elastic Isolator, the vertical stiffness of plate end isolation mounting and the vertical stiffness of Elastic Isolator, determine the single static determinacy load of theory that each Elastic Isolator is born, using the single static determinacy load value of this theory as adjusting load, utilize jack to apply the adjustment load of identical numerical value on Elastic Isolator, clearance height between Elastic Isolator upper surface and support stop soffit is the required thickness of heightening pad, the pad of heightening of respective thickness is set on Elastic Isolator, complete the leveling of jacking for the second time of this prefabricated floating plate,

(10), according to the leveling of the jacking for the second time step of above-mentioned prefabricated floating plate, complete successively the leveling of jacking for the second time that all prefabricated floating plates in workshop section are installed;

(11) measure respectively and first prefabricated floating plate free end of workshop section's initiating terminal is installed and adjusted the actual height of the prefabricated floating plate plate body upper surface of end respective panels end isolation mounting position, both sides with respect to the disjunction mark of laying a railway track, the design elevation of contrast railway roadbed, calculate difference between the two, again adjust the height adjusting cushion plate gross thickness between prefabricated floating plate and correspondence position plate end isolation mounting according to height difference, until prefabricated floating plate height meets design requirement, complete the accurate jacking leveling of this prefabricated floating plate;

(12), according to the accurate jacking leveling step of above-mentioned prefabricated floating plate, complete one by one the accurate jacking leveling that all prefabricated floating plates in workshop section are installed;

(13) repeat above-mentioned steps, complete all first jacking leveling, jacking leveling for the second time and accurately jacking leveling that prefabricated floating plate in workshop section is installed in ballast bed structure, realize the installation jacking leveling of prefabricated floating plate in the floating plate railway roadbed.

The installation leveling method of prefabricated floating plate in this routine described floating plate railway roadbed, the continuity of constructing operation is better, is conducive to optimize the inter process flow process, and then effectively improves efficiency of construction.

Embodiment tetra-

With embodiment tri-, compare, in this routine described floating plate railway roadbed of the present invention, the kind of the difference of the installation jacking leveling method of prefabricated floating plate is, according to step (1) in embodiment tri-to the described method of step (10), after completing successively the leveling of jacking for the second time that all prefabricated floating plates in workshop section are installed, operated as follows again: under installation workshop section, on the prefabricated floating plate, setting up rail, measure relatively the lay a railway track actual height of disjunction mark of plate end isolation mounting corresponding position tread in the prefabricated floating plate, contrast Track desigh elevation, increase and decrease height adjusting cushion plate accordingly on plate end isolation mounting according to comparing result, complete the accurate jacking leveling of a prefabricated floating plate, according to the method for operating of above-mentioned accurate jacking leveling, complete successively the accurate jacking leveling that all prefabricated floating plates in workshop section are installed, realize the installation jacking leveling of prefabricated floating plate in the floating plate railway roadbed.

This routine described method in the installation jacking leveling of prefabricated floating plate, has also realized the adjustment that Rail is risen in realizing the floating plate railway roadbed, has reduced the adjustment operation, has improved efficiency of construction.

It is to be noted especially, as a kind of existing conventional application mode, be provided with flexible railway rail pad between rail and fastener, in accurate jacking leveling process, when the tread recorded is laid a railway track the difference of the actual height of disjunction mark and Track desigh elevation while being less than 2mm relatively, also can utilize the thickness of controlling railway rail pad to carry out leveling, no longer adjust the height adjusting cushion plate thickness on respective panels end isolation mounting, this operating type can effectively reduce jacking prefabricated floating plate and proofread and correct the number of times of prefabricated floating plate plan-position, thereby reduction difficulty of construction, improve efficiency of construction, among the protection domain also required in the present invention.

Embodiment five

Typical floating plate ballast bed structure as shown in Figure 8, Figure 9, with the difference of floating plate ballast bed structure shown in Fig. 1 and Fig. 2 in embodiment mono-, be, shared plate end isolation mounting is set between contiguous prefabricated formula floating plate in the floating plate ballast bed structure, wherein plate end isolation mounting 25 is supporting the abutting end of prefabricated floating plate 21 and prefabricated floating plate 22 simultaneously, plate end isolation mounting 26 is supporting the abutting end of prefabricated floating plate 22 and prefabricated floating plate 23 simultaneously, and plate end isolation mounting 27 is supporting the abutting end of prefabricated floating plate 23 and prefabricated floating plate 24 simultaneously.It is pointed out that at this and distinguish plate end isolation mounting 25, plate end isolation mounting 26, plate end isolation mounting 27 only for convenience of description, in actual applications, plate end isolation mounting 25,26 and 27 may be also identical.

Based on know-why of the present invention, for the situation of shared plate end isolation mounting is set between contiguous prefabricated formula floating plate in the floating plate ballast bed structure, implement in first jacking leveling process, before measuring the actual height of prefabricated floating plate upper surface with respect to the disjunction mark of laying a railway track corresponding to common plate end isolation mounting place, need all be placed in advance on common plate end isolation mounting by adjacent two prefabricated floating plates and adjust plan-position, and make plate end isolation mounting shared between adjacent two prefabricated floating plates to the abutting end of the two prefabricated floating plates bearing state of all remaining valid, the disjunction mark of relatively laying a railway track is again implemented to measure.The prefabricated floating plate 22 of below take is specifically described as the installation jacking leveling method of example to prefabricated floating plate in this routine described floating plate railway roadbed:

(1) the prefabricated floating plate identified according to line on railway roadbed basis 6 and the plan-position of plate end isolation mounting, to major general's prefabricated floating plate 21, the plate end isolation mounting of 22 and 23 correspondences is placed in respectively precalculated position, again by pre-processed prefabricated floating

plate

21, 22 and 23 utilize respectively hoisting transportation equipment to be placed on plate end isolation mounting, adjust prefabricated floating

plate

21, 22 and 23 plan-position, wherein plate end isolation mounting 25 is supporting the abutting end of prefabricated floating plate 21 and prefabricated floating plate 2 simultaneously, plate end isolation mounting 26 is supporting the abutting end of prefabricated floating plate 22 and prefabricated floating plate 23 simultaneously,

(2) using an end that prefabricated floating plate 22 and prefabricated floating plate 23 coordinate with plate end isolation mounting 26 as adjusting end, the end that prefabricated floating plate 22 coordinates with plate end isolation mounting 25 is free end, the end that prefabricated floating plate 23 coordinates with plate end isolation mounting 27 is free end, utilize respectively jack 30 at prefabricated floating plate 22 and prefabricated floating plate 23 plate body longitudinal centre line places by the free end jack-up of prefabricated floating plate 22 and prefabricated floating plate 23, until the plate end vibration isolator 25 that the free end of prefabricated floating plate 22 and its below arrange breaks away from fully, the plate end vibration isolator 27 that the free end of prefabricated floating plate 23 and its below arrange breaks away from fully, prefabricated floating plate 22 and prefabricated floating plate 23 enter the static determinacy state of three-point support simultaneously, be that jack 30 and the adjustment that prefabricated floating plate 22 is arranged by its free end holds the plate end vibration isolator 26 of both sides setting jointly to support, the plate end vibration isolator 26 that the jack 30 that prefabricated floating plate 23 is arranged by its free end and adjustment end both sides arrange supports jointly, specifically as shown in Figure 10 and Figure 11,

(3) measure respectively the plate body upper surface of corresponding each plate end isolation mounting 26 position of adjustment end of prefabricated floating

plate

22 and 23 with respect to the actual height of the disjunction mark of laying a railway track, the design elevation of contrast railway roadbed, calculate difference between the two, be adjusted the thickness of each plate end isolation mounting 26 required height adjusting cushion plate of end both sides;

(4) jack 30 is let out and carried, make the free end of prefabricated floating

plate

22 and 23 fall to being back to respectively on the plate end isolation mounting of its below setting, recycling jack 30 is the adjustment end jack-up by prefabricated floating

plate

22 and 23 at prefabricated floating plate plate body longitudinal centre line place, until the adjustment end of prefabricated floating

plate

22 and 23 breaks away from fully with the plate end vibration isolator that its below arranges respectively, prefabricated floating

plate

22 and 23 all enters the static determinacy state of three-point support;

(5) place respectively the height adjusting cushion plate 7 of respective thickness on each the plate end isolation mounting 26 arranged in the adjustment end both sides of prefabricated floating

plate

22 and 23 respectively, complete the first jacking leveling of adjusting end for prefabricated floating plate 22, it is to be noted, also completed prefabricated floating plate 23 simultaneously and adjusted the first jacking leveling of holding, as shown in figure 12;

(6) according to the method described above, also place respectively the height adjusting cushion plate 7 of suitable thickness on each plate end isolation mounting 25 of prefabricated floating plate 21 and the setting of 22 abutting end both sides, complete for the free-ended first jacking leveling of prefabricated floating plate 22, it is pointed out that also completed prefabricated floating plate 21 coordinates the first jacking leveling of an end simultaneously with plate end isolation mounting 25;

(7) jack pressure release, drop on prefabricated floating plate 22 on the plate end isolation mounting 25 and 26 of having set up height adjusting cushion plate 7, realizes the first jacking leveling to prefabricated floating plate 22, specifically as shown in figure 12;

(8) the interior built-in Elastic Isolator 8 of putting into respectively of four joint sheeves 5 that are fixedly installed in prefabricated floating plate 22, gross mass according to prefabricated floating plate 22, plate end isolation mounting 25 and 26 quantity, the quantity of Elastic Isolator 8, plate end isolation mounting 25 and 26 vertical stiffness, the vertical stiffness of Elastic Isolator 8, pre-determine the single static determinacy load of theory that each Elastic Isolator 8 is born, using the single static determinacy load value of this theory as adjusting load, utilize the hydraulic pump drive jack to apply one by one the adjustment load of identical numerical value on Elastic Isolator 8, Elastic Isolator 8 is compressed, clearance height in Elastic Isolator 8 upper surfaces and joint sheeve 5 between support stop 10 soffits is the required thickness of heightening pad 9, what respective thickness was set on Elastic Isolator 8 heightens pad 9, utilization is heightened pad 9 and is occupied the gap between support stop 10 soffits in Elastic Isolator 8 upper surfaces and joint sheeve 5, complete the leveling of jacking for the second time of this prefabricated floating plate 22, concrete state as shown in figure 13,

(9) again measure respectively the actual height of the plate body upper surface of prefabricated floating plate 22 end respective panels end

isolation mountings

25 and 26 positions with respect to the disjunction mark of laying a railway track, the design elevation of contrast railway roadbed, calculate difference between the two, again adjust the height adjusting cushion plate gross thickness between prefabricated floating plate and correspondence position plate end isolation mounting according to the gained height difference, until the height of prefabricated floating plate 22 meets design requirement, complete the accurate jacking leveling of this prefabricated floating plate;

(10) according to the method described above, what complete one by one other all prefabricated floating plates in prefabricated floating plate 21, prefabricated floating plate 23 and ballast bed structure puts jacking leveling in place, first, jacking leveling for the second time and accurate jacking leveling, realizes the installation jacking leveling of prefabricated floating plate in the floating plate railway roadbed.

It should be noted that, at present in the engineering application, support the plate end isolation mounting of adjacent two prefabricated floating plates simultaneously, its support force provided for each piece prefabricated floating plate is approximately uniform, therefore can be similar to and think that the vertical stiffness contribution of the corresponding every prefabricated floating plate of each shared plate end isolation mounting is 1/2nd of the vertical global stiffness of plate end isolation mounting, applies and gets final product accordingly when calculating comprehensive leveling compensation rate and adjusting load.In addition, the position be connected with solid concrete roabed at the floating plate railway roadbed, the prefabricated floating plate adjacent with a solid concrete roabed end adjacent with solid concrete roabed can arrange independently plate end isolation mounting, when this piece prefabricated floating plate is installed to leveling, this routine described method and the described method of enforcement can be combined with, there iing common plate end isolation mounting one side, by this routine described method, leveling is installed, at an end that uses independent plate end isolation mounting, utilizing the described method of embodiment mono-that leveling is installed.

In this routine described method, the prefabricated floating plate why requirement is provided with common plate end isolation mounting is implemented in first jacking leveling process, before measuring the actual height of prefabricated floating plate upper surface with respect to the disjunction mark of laying a railway track corresponding to common plate end isolation mounting place, need all be placed in advance on plate end isolation mounting by adjacent two prefabricated floating plates and adjust plan-position, and make plate end isolation mounting shared between adjacent two prefabricated floating plates to the abutting end of the two prefabricated floating plates bearing state of all remaining valid, mainly these measures of wanting by above-mentioned, the stressed actual forced status during closer to static load that makes plate end isolation mounting, therefore measurement result is more accurate, also have more directive significance, the thickness of determining accordingly required height adjusting cushion plate is more accurate rationally, can effectively reduce the adjustment number of times, improve efficiency of construction.

Certainly; know-why according to embodiment tri-; in this routine described installation jacking leveling method; at least one also can be set workshop section is installed; take again workshop section is installed arbitrary end as initial; successively all prefabricated floating plates of installing in workshop section are implemented to first jacking leveling; and then implement successively jacking leveling for the second time; last all prefabricated floating plates of installing successively again in workshop section are implemented accurate jacking leveling; realize the installation jacking leveling of prefabricated floating plate in the floating plate railway roadbed; also can realize same effect, in the protection domain all required in the present invention.

Be noted that in addition, in this routine described method, when leveling prefabricated floating plate 22 is installed, prefabricated floating plate 21 and prefabricated floating plate 23 are synchronizeed respectively and realized first jacking leveling with the abutting end of prefabricated floating plate 22, therefore in the follow-up adjustment process for prefabricated floating plate 21 and prefabricated floating plate 23, the abutting end of itself and prefabricated floating plate 2 only need to carry out accurate jacking leveling and get final product.

Embodiment six

In this routine described floating plate railway roadbed, the difference of method described in the installation jacking leveling method of prefabricated floating plate and embodiment five is: in step (1), after utilizing hoisting transportation equipment to be placed on plate end isolation mounting pre-processed prefabricated floating plate, at first confirm between each plate end isolation mounting and prefabricated floating plate to remain valid supporting, set in advance height adjusting cushion plate on the plate end isolation mounting of not realizing fully contacting with prefabricated floating plate bottom surface, until all realize effectively supporting between all plate end isolation mountings and prefabricated floating plate, and then according to the method described in embodiment five, the prefabricated floating plate is implemented to first jacking leveling, jacking leveling for the first time and accurate jacking leveling operation, at this, no longer be repeated in this description.

This routine described method, further perfect to institute's recording method in embodiment five, because there are the reasons such as construction error in the railway roadbed basis, when adjacent two prefabricated floating plates are placed on shared plate end isolation mounting, the situation that the plate end isolation mounting of indivedual positions does not contact fully with the prefabricated floating plate may appear, thereby the accuracy to follow-up measurement impacts, by this routine described measure, can effectively eliminate this hidden danger, therefore measurement result is more accurate, also have more directive significance, the thickness of determining accordingly required height adjusting cushion plate is more accurate rationally, can effectively reduce the adjustment number of times, improve efficiency of construction.

Embodiment seven

For the adverse effect that the height error of eliminating the railway roadbed foundation construction is brought, with method described in embodiment five, to compare, in floating plate railway roadbed of the present invention, the installation jacking leveling method of prefabricated floating plate can also be done following improvement:

In step (1), on the railway roadbed basis before board for putting end isolation mounting, at first measure each center, plate end isolation mounting plan-position that on the railway roadbed basis, line identifies actual height with respect to the disjunction mark of laying a railway track, the design height on contrast railway roadbed basis, the calculated height difference, then board for putting end isolation mounting, part lower than design height is recompensed by the height adjusting cushion plate that increases respective thickness on plate end isolation mounting, the adverse effect caused to eliminate railway roadbed foundation construction error, and then utilize hoisting transportation equipment be placed on plate end isolation mounting by the prefabricated floating plate and adjust plan-position, later step is identical with the description in embodiment five, at this, no longer repeat.

It should be noted that, for the ease of utilizing height adjusting cushion plate to compensate adjustment, in the railway roadbed foundation construction process in early stage, the height tolerance on railway roadbed basis only arranges lower limit, be that the railway roadbed basis only allows the design height less than or equal to standard, should be higher than the design height of standard.

Embodiment eight

The installation leveling method of prefabricated floating plate in this routine described floating plate railway roadbed of the present invention, with the difference of embodiment five described methods, be, while utilizing the jack pair Elastic Isolator to load in step (8), for each Elastic Isolator in prefabricated floating plate plate body corresponding a jack is set, utilize compression pump to drive each Elastic Isolator in all jack pair prefabricated floating plates to apply respectively adjustment load simultaneously, then arrange and heighten pad on Elastic Isolator, utilization is heightened pad and is occupied the gap between the support stop soffit in Elastic Isolator upper surface and joint sheeve, complete the leveling of jacking for the second time of this prefabricated floating plate.All the other methods of operating are described identical with embodiment five, at this, no longer repeat.

This routine described installation leveling method, the all Elastic Isolators that utilize jack to make to arrange in the prefabricated floating plate are simultaneously stressed, the stressing conditions of each Elastic Isolator is closer to actual static load duty, it is higher that it adjusts precision, better effects if, be conducive to reduce and repeat to adjust number of times, significantly improve efficiency of construction.

Know-why of the present invention equally also is suitable for applying in other embodiments of the invention; and; based on know-why of the present invention; also all Elastic Isolators that arrange in the prefabricated floating plate can be divided into to some groups; and then take group as unit; utilize each Elastic Isolator in every group of jack pair to load simultaneously and arrange and heighten pad; until complete the leveling of jacking for the second time of prefabricated floating plate; these technical schemes are all the simple extensions of the technology of the present invention principle, in the protection domain all required in the present invention.It should be noted that in addition, in practicing, the actual adjustment load that each Elastic Isolator of jack pair applies is 0.9～1.1 times of theoretical single static determinacy load value, this be because, for operating modes such as curved sections, the Elastic Isolator that the inside and outside both sides of track arrange stressed different, so also difference to some extent of the adjustment load applied.This point is applicable to other embodiment of the present invention too.

More than provided the part exemplary embodiments of the installation jacking leveling method of prefabricated floating plate in floating plate railway roadbed of the present invention; purpose is the convenient method of understanding better the present invention; it should not be considered as limitation of the present invention; wherein the technical scheme in each embodiment also can cross-reference; as long as based on know-why of the present invention, among the protection domain all required in the present invention.

Claims

1. the installation jacking leveling method of prefabricated floating plate in a floating plate railway roadbed, is characterized in that when the prefabricated floating plate is supported jointly by plate end isolation mounting and built-in Elastic Isolator, and it is installed jacking leveling method and comprises the steps:

2. the installation jacking leveling method of prefabricated floating plate in the floating plate railway roadbed according to claim 1, it is characterized in that comprehensive leveling compensation method for determination of amount is, using the weight of prefabricated floating plate as static load, calculate the average decrement had elastic component when the prefabricated floating plate is only provided support by all plate end isolation mountings, calculate again the average decrement had elastic component when the prefabricated floating plate is supported jointly by all plate end isolation mountings and built-in Elastic Isolator, comprehensive leveling compensation rate is the absolute value of the difference of secondary calculating averaging of income decrement.

3. the installation jacking leveling method of prefabricated floating plate in the floating plate railway roadbed according to claim 1, it is characterized in that according to the described method of step (1), place in proper order and adjust the plan-position of polylith prefabricated floating plate, form at least one workshop section is installed, again each piece prefabricated floating plate of installing in workshop section is implemented to first jacking leveling, jacking leveling for the second time and accurate jacking leveling, thereby realize the installation jacking leveling of prefabricated floating plate in the floating plate railway roadbed.

4. the installation jacking leveling method of prefabricated floating plate in the floating plate railway roadbed according to claim 3, it is characterized in that selecting to install an end of workshop section as initial, successively to after in installation workshop section, all prefabricated floating plates are implemented first jacking leveling, to being installed, all prefabricated floating plates in workshop section carry out jacking leveling for the second time successively again, and then carry out accurate jacking leveling to all prefabricated floating plates in workshop section are installed successively, thereby realize the installation jacking leveling of prefabricated floating plate in the floating plate railway roadbed.

5. the installation jacking leveling method of prefabricated floating plate in the floating plate railway roadbed according to claim 4, it is characterized in that after in installation workshop section, all prefabricated floating plates are implemented first jacking leveling and jacking leveling for the second time, setting up rail on the prefabricated floating plate under installation workshop section, measure relatively the lay a railway track actual height of disjunction mark of plate end isolation mounting corresponding position tread in each prefabricated floating plate, contrast Track desigh elevation, increase and decrease height adjusting cushion plate accordingly on plate end isolation mounting according to comparing result, until complete the accurate jacking leveling that all prefabricated floating plates in workshop section are installed, realize the installation jacking leveling of prefabricated floating plate in the floating plate railway roadbed.

6. the installation jacking leveling method of prefabricated floating plate in the floating plate railway roadbed according to claim 5, it is characterized in that relatively laying a railway track the difference of the actual height of disjunction mark and Track desigh elevation while being less than 2mm when tread, utilize railway rail pad to carry out leveling, no longer adjust the height adjusting cushion plate thickness on respective panels end vibration isolator.

7. according to claim 1, the installation jacking leveling method of prefabricated floating plate in 2 or 3 described floating plate railway roadbeds, it is characterized in that when shared plate end isolation mounting is set between contiguous prefabricated formula floating plate, before measuring the actual height of prefabricated floating plate upper surface with respect to the disjunction mark of laying a railway track corresponding to common plate end isolation mounting place, need all be placed in advance on plate end isolation mounting by adjacent two prefabricated floating plates and adjust plan-position, then the non-adjacent end of two prefabricated floating plates is jack-uped at prefabricated floating plate plate body longitudinal centre line place respectively, make adjacent two prefabricated floating plates static determinacy state in three-point support simultaneously, and make plate end isolation mounting shared between adjacent two prefabricated floating plates to the abutting end of the two prefabricated floating plates bearing state of remaining valid, the disjunction mark of relatively laying a railway track is again implemented to measure.

8. according to claim 1, the installation jacking leveling method of prefabricated floating plate in 2 or 3 described floating plate railway roadbeds, it is characterized in that in step (1), after utilizing hoisting transportation equipment to be placed on plate end isolation mounting pre-processed prefabricated floating plate, at first confirm between each plate end isolation mounting and prefabricated floating plate to remain valid supporting, set in advance height adjusting cushion plate on the plate end isolation mounting of not realizing fully contacting with prefabricated floating plate bottom surface, until all realize effectively supporting between all plate end isolation mountings and prefabricated floating plate, and then the prefabricated floating plate is implemented to first jacking leveling, jacking leveling for the second time and accurate jacking leveling operation.

9. according to claim 1, the installation jacking leveling method of prefabricated floating plate in 2 or 3 described floating plate railway roadbeds, it is characterized in that in step (1), on the railway roadbed basis before board for putting end isolation mounting, at first measure each center, plate end isolation mounting plan-position that on the railway roadbed basis, line identifies actual height with respect to the disjunction mark of laying a railway track, the design height on contrast railway roadbed basis, part lower than design height is recompensed by the height adjusting cushion plate that increases respective thickness on plate end vibration isolator, the adverse effect caused to eliminate railway roadbed foundation construction error, and then utilize hoisting transportation equipment that the prefabricated floating plate is placed on plate end isolation mounting, adjust the horizontal level of the short floating plate of prefabricated.

10. the installation jacking leveling method of prefabricated floating plate in the floating plate railway roadbed according to claim 1, it is characterized in that utilizing hanging device to substitute jack slings the free end of prefabricated floating plate or adjustment end along plate body longitudinal centre line place, until the free end of prefabricated floating plate or adjustment end break away from fully with the plate end vibration isolator that its below arranges, the prefabricated floating plate enters the static determinacy state of three-point support.

11. the installation jacking leveling method of prefabricated floating plate in the floating plate railway roadbed according to claim 9, it is characterized in that utilizing hanging device to substitute the sling free end of prefabricated floating plate of jack, determine the thickness of adjusting the required height adjusting cushion plate of end each plate end isolation mounting of both sides, fall free end, sling the again adjustment end of prefabricated floating plate, determine the thickness of the required height adjusting cushion plate of each plate end isolation mounting of free end both sides, then utilize hanging device that the free end of prefabricated floating plate is also sling, make prefabricated floating plate integral body in the state of suspending, place respectively the height adjusting cushion plate of respective thickness on each plate end isolation mounting of prefabricated floating plate free end and the both sides setting of adjustment end, then prefabricated floating plate integral body is fallen, complete the first jacking leveling of a prefabricated floating plate.

12. the installation jacking leveling method of prefabricated floating plate in the floating plate railway roadbed according to claim 1, while it is characterized in that in step (8) utilizing the jack pair Elastic Isolator to load, each Elastic Isolator is corresponding arranges a jack, utilizes compression pump to drive each Elastic Isolator in all jack pair prefabricated floating plates to apply respectively adjustment load simultaneously.

13., according to the installation jacking leveling method of prefabricated floating plate in the described floating plate railway roadbed of claim 1 or 12, it is characterized in that actual adjustment load that each Elastic Isolator of jack pair applies is 0.9～1.1 times of theoretical single static determinacy load value.