CN103485247B - The installation leveling method of floating plate in prefabricated floating plate railway roadbed - Google Patents
The installation leveling method of floating plate in prefabricated floating plate railway roadbed Download PDFInfo
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- CN103485247B CN103485247B CN201310474106.0A CN201310474106A CN103485247B CN 103485247 B CN103485247 B CN 103485247B CN 201310474106 A CN201310474106 A CN 201310474106A CN 103485247 B CN103485247 B CN 103485247B
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Abstract
The invention belongs to field of track traffic, especially relate to the jacking leveling method of floating plate in a kind of floating plate railway roadbed, be specially the installation leveling method of floating plate in a kind of prefabricated floating plate railway roadbed.The method is simple to operate, do not need repeatedly to heighten leveling to floating plate, substantially can realize disposablely heightening leveling, fast very convenient, which overcome the technical bottleneck of existing method of operating, be conducive to improving speed of application further, meet the requirement of construction period, it greatly improves the applicability of steel spring floating slab road bed technology, market application foreground is very wide.
Description
Technical field
The invention belongs to field of track traffic, especially relate to the jacking leveling method of floating plate in a kind of floating plate railway roadbed, be specially the installation leveling method of floating plate in a kind of prefabricated floating plate railway roadbed.
Background technology
Vibration & noise is influence surface the most a kind of public hazards that people generally acknowledge, is also track traffic in recent years development one of a facing difficult problem urgently to be resolved hurrily.In the noise reduction technology of existing track traffic, practical application is the most successfully component livitation, typically floating plate road bed technique, its vibration isolation efficiency is high, stable work in work, become common recognition in the industry, the such as patent No. is built-in type floating plate ballast bed structure disclosed in the Chinese patent of ZL200410035441.1.But the construction period of existing floating plate railway roadbed is general longer, and standard floating plate length is 25m, and the speed of all carrying out the earliest constructing in tunnel can only realize average each working group and complete 5m every day; Then earthing, Shen, Shanghai Inland Steel and Qingdao every and solid company develops precast reinforced cage construction technology jointly, namely after the good reinforcing cage of the first colligation in ground, lifting enters the construction method of carrying out filling concrete in tunnel again, and the job schedule of each working group every day is brought up to about 30m.Because reinforcing cage size is larger, often need when transporting in tunnel to offer special passage on tunnel, very inconvenient, in addition, although reinforcing cage construction method significantly improves construction speed, but still the requirement of engineering construction duration can not be met well, many subway vibration isolation locations yield because the duration cannot meet and use floating plate railway roadbed vibration isolation technique, cause the hidden danger vibrated and disturb residents.For addressing this problem, Shen, Shanghai earthing Inland Steel and Qingdao every and the technician of solid company develops and a kind ofly applies the long novel floating plate ballast bed structure being no more than the floating plate of 8 meters of plate, concrete if application number is for described in the Chinese patent of 201220091895.0.This novel floating plate ballast bed structure, because floating plate plate is long shorter, can transport in tunnel easily, therefore floating plate can carry out prefabricated suitability for industrialized production on ground, so also referred to as prefabricated floating plate, to carry out assembling construction in this floating plate again handling to tunnel, greatly can improve speed of application, the quality of floating plate also more easily ensures.But the plate due to this prefabricated floating plate is long shorter, floating plate is heightened Levelling operation link and is increased, precision prescribed is also higher, otherwise will be formed between adjacent floating plate and interfere with each other, particularly in order to prevent seesaw effect, put between plate through adjacent floating of being everlasting and shared plate end isolation mounting is set, between adjacent floating plate, interactional problem is more outstanding, when causing floating plate to adopt traditional approach to carry out jacking and leveling, need repeatedly to heighten the design elevation requirement that leveling could meet railway roadbed, therefore have impact on the progress of whole construction to a certain extent.
How to solve floating plate jacking leveling length consuming time in prefabricated floating plate railway roadbed, problem that operation easier is large, thus realize the object improving speed of application further, become a difficult problem in the industry for this technology further genralrlization of restriction application.
Summary of the invention
The object of the invention is to overcome above-mentioned defect, the installation leveling method of floating plate in a kind of simple, quick, maneuverable prefabricated floating plate railway roadbed is provided.
In prefabricated floating plate railway roadbed of the present invention, the installation leveling method of floating plate is achieved in that when floating plate is only supported by plate end isolation mounting, and it is installed leveling method and comprises the steps:
(1) floating plate identified according to ruling in railway roadbed basis and the plan-position of plate end isolation mounting, plate end isolation mounting is placed in precalculated position, utilized by pre-processed floating plate hoisting transportation equipment to be placed on plate end isolation mounting again, adjust the plan-position of floating plate;
(2) using floating plate along the either end of plate body longitudinal direction as free end, then floating plate is held along the other end of plate body longitudinal direction as adjustment, utilize the free end jack-up of jack at floating plate plate body longitudinal centre line place by floating plate, until the free end of floating plate and the plate end vibration isolator that arranges below it depart from completely, floating plate enters the static determinacy state of three-point support, and the plate end vibration isolator that namely jack that arranged by its free end of floating plate and adjustment end both sides are arranged supports jointly;
(3) actual height of floating plate plate body upper surface relative to disjunction mark of laying a railway track of floating plate adjustment end respective panels end isolation mounting position, both sides is measured respectively, the design elevation of contrast railway roadbed, calculate difference between the two, be adjusted the thickness of height adjusting cushion plate needed for each plate end isolation mounting of end both sides;
(4) jack is let out carry, the free end of floating plate is made to fall to being back on the plate end isolation mounting that arranges below it, recycle jack at floating plate plate body longitudinal centre line place by the adjustment end jack-up of floating plate, until the adjustment end of floating plate and the plate end vibration isolator that arranges below it depart from completely, floating plate enters the static determinacy state of three-point support;
(5) on each plate end isolation mounting of floating plate adjustment end both sides setting, place the height adjusting cushion plate of respective thickness respectively;
(6) actual height of floating plate plate body upper surface relative to disjunction mark of laying a railway track of respective panels end isolation mounting position, floating plate free end both sides is measured respectively, the design elevation of contrast railway roadbed, determines the thickness of height adjusting cushion plate needed for each plate end isolation mounting of free end both sides;
(7) jack is let out carry, make floating plate adjust end to fall, utilize jack by the free end of floating plate again jack-up, each plate end isolation mounting that floating plate free end both sides are arranged is placed the height adjusting cushion plate of respective thickness respectively, then floating plate free end is fallen again, complete the first jacking leveling of one piece of floating plate;
(8) actual height of floating plate plate body upper surface relative to disjunction mark of laying a railway track of floating plate free end and adjustment end respective panels end isolation mounting position, both sides is measured respectively, the design elevation of contrast railway roadbed, calculate difference between the two, the height adjusting cushion plate gross thickness between floating plate and correspondence position plate end isolation mounting is again adjusted according to height difference, until floating plate height meets design requirement, complete the accurate jacking leveling of one piece of floating plate;
(9) repeat above-mentioned steps, complete the first jacking leveling of all floating plates in ballast bed structure and accurate jacking leveling one by one, namely realize the installation leveling of floating plate in prefabricated floating plate railway roadbed.
In order to improve efficiency of construction further, when putting floating plate in step (1), can according to step (1) described method, place in proper order and adjust the plan-position of polylith floating plate, form at least one and workshop section is installed, again first jacking leveling and accurately jacking leveling are implemented to each the block floating plate installed in workshop section, thus realize the installation leveling of floating plate in prefabricated floating plate railway roadbed.This form of construction work, is conducive to the continuity strengthening constructing operation, optimizes inter process flow process, and then effectively improve efficiency of construction.Its Specific construction mode of operation can be varied, such as, the one end of installing workshop section can be selected as initial, successively first jacking leveling and accurate jacking leveling are implemented continuously to each block floating plate in installation workshop section, thus realize the installation leveling of floating plate in floating plate railway roadbed; Also the one end of installing workshop section can be selected as initial, successively to after in installation workshop section, all floating plates implement first jacking leveling, successively accurate jacking leveling is carried out to all floating plates in installation workshop section again, thus realize the installation leveling of floating plate in prefabricated floating plate railway roadbed; Can also to after in installation workshop section, all floating plates implement first jacking leveling, floating plate belonging to installation workshop section sets up rail, measure plate end isolation mounting corresponding position tread in each floating plate relatively to lay a railway track the actual height of disjunction mark, contrast design elevation, on plate end isolation mounting, height adjusting cushion plate is increased and decreased accordingly according to comparing result, until complete the accurate jacking leveling of installing all floating plates in workshop section, according to said method and then the accurate jacking leveling completing all floating plates in ballast bed structure, realize the installation leveling of floating plate in prefabricated floating plate railway roadbed.In addition, when tread relatively lay a railway track the actual height of disjunction mark and the difference of Track desigh elevation be less than 2mm time, railway rail pad can be utilized to carry out leveling, no longer adjust the height adjusting cushion plate thickness on respective panels end isolation mounting, this operating type effectively can reduce jacking floating plate and correct the number of times of floating plate plan-position, thus reduction difficulty of construction, improve efficiency of construction.
For the situation arranging shared plate end isolation mounting between floating plate adjacent in floating plate ballast bed structure, in first jacking leveling process, before measuring the actual height of floating plate upper surface corresponding to common plate end isolation mounting place relative to disjunction mark of laying a railway track, to need adjacent two pieces of floating plates to be placed in all in advance on this common plate end isolation mounting and to adjust plan-position, then the non-adjacent end of two pieces of floating plates is jack-uped at floating plate plate body longitudinal centre line place respectively, make adjacent two pieces of floating plates be in the static determinacy state of three-point support simultaneously, and the abutting end of plate end isolation mounting to two pieces of floating plates shared between adjacent two pieces of floating plates is remained valid bearing state, disjunction mark of relatively laying a railway track again is implemented to measure.In order to overcome the adverse effect that various early stage, construction error was brought, reduce and repeatedly adjust number of times, can also operate as follows, in step (1), hoisting transportation equipment is utilized by pre-processed floating plate to be placed in after on plate end isolation mounting, first confirming remains valid between each plate end isolation mounting and floating plate supports, the plate end isolation mounting not realizing with floating plate bottom surface fully contacting pre-sets height adjusting cushion plate, until all realize between all plate end isolation mountings and floating plate effectively supporting, and then first jacking leveling and accurate jacking Levelling operation are implemented to floating plate.By these above-mentioned measures, plate end isolation mounting stressed closer to work time actual forced status, therefore measurement result is more accurate, also directive significance is had more, determine that the thickness of required height adjusting cushion plate is more accurate accordingly and rationally can effectively reduce adjustment number of times, improve efficiency of construction.
In addition, in order to the adverse effect that the height error eliminating railway roadbed foundation construction is brought, in step (1), can on railway roadbed basis before board for putting end isolation mounting, first each center, plate end isolation mounting plan-position that measuring, railway roadbed basis rules identifies is relative to the actual height of disjunction mark of laying a railway track, the design height on contrast railway roadbed basis calculates height difference, then board for putting end isolation mounting, height difference part lower than design height is recompensed by the height adjusting cushion plate increasing respective thickness on plate end vibration isolator, to eliminate the adverse effect that railway roadbed foundation construction error causes, and then utilize hoisting transportation equipment to be placed in by floating plate on plate end isolation mounting, adjust the horizontal level of floating plate.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, namely railway roadbed basis only allows the design height less than or equal to standard, should higher than the design height of standard.
According to know-why of the present invention, also hanging device can be utilized to substitute jack along plate body longitudinal centre line place, the free end of floating plate or adjustment end are sling, until the free end of floating plate or adjustment end with its below the plate end vibration isolator that arranges depart from completely, floating plate enters the static determinacy state of three-point support.In addition, when utilizing hanging device to operate, can implement as follows: utilize hanging device to substitute jack and to sling the free end of floating plate, determine the thickness adjusting height adjusting cushion plate needed for each plate end isolation mounting of end both sides, fall free end, to sling again the adjustment end of floating plate, determine the thickness of height adjusting cushion plate needed for each plate end isolation mounting of free end both sides, then hanging device is utilized also to be sling by the free end of floating plate, floating plate entirety is made to be in suspended state, each plate end isolation mounting that floating plate free end and adjustment end both sides are arranged is placed the height adjusting cushion plate of respective thickness respectively, then floating plate entirety is fallen, complete the first jacking leveling of one piece of floating plate.It is pointed out that the horizontal level due to floating plate entirety suspension rear plate body is easily moved, therefore after floating plate entirety falls, the horizontal level of floating plate should be reaffirmed.The advantage of this adjustment mode is, the height adjusting cushion plate on all plates end isolation mounting of floating plate two ends can disposablely be dosed complete, can reduce the transport link of height adjusting cushion plate, strengthens the continuity of constructing operation.
The installation leveling method of floating plate in prefabricated floating plate railway roadbed of the present invention, simple to operate, do not need repeatedly to heighten leveling to floating plate, substantially can realize disposablely heightening leveling, fast very convenient, which overcome the technical bottleneck of existing method of operating, be conducive to improving speed of application further, meet the requirement of construction period, it greatly improves the applicability of steel spring floating slab road bed technology, market application foreground is very wide.
Accompanying drawing explanation
Fig. 1 is one of structural representation of prefabricated floating plate railway roadbed.
Fig. 2 is the A-A sectional view in Fig. 1.
Fig. 3 be in first jacking leveling process floating plate and plate end isolation mounting and jack coordinate one of schematic diagram.
Fig. 4 is the B-B sectional view in Fig. 3.
Fig. 5 be through first jacking leveling floating plate and plate end isolation mounting coordinate one of schematic diagram.
Fig. 6 is the structural representation two of prefabricated floating plate railway roadbed.
Fig. 7 is the E-E sectional view in Fig. 6.
Fig. 8 be in first jacking leveling process floating plate and plate end isolation mounting and jack coordinate schematic diagram two.
Fig. 9 is the F-F sectional view in Fig. 8.
Figure 10 be through first jacking leveling floating plate and plate end isolation mounting coordinate schematic diagram two.
Detailed description of the invention
Embodiment one
Be supported for example with block floating plate every in prefabricated floating plate railway roadbed by four plate end isolation mountings below, the operating process of the installation leveling method of floating plate in prefabricated floating plate railway roadbed of the present invention is illustrated.Understand the inventive method for convenience, first the basic structure of involved prefabricated floating plate railway roadbed is described.The typical structure of described prefabricated floating plate railway roadbed as shown in Figures 1 and 2, for floating plate 2, it is by four plate end isolation mounting 10 common support, departing from surface, basis 6, between plate end isolation mounting 10 and floating plate 2, height adjusting cushion plate 7 being set, in order to ensure floating plate smooth transition load in the course of the work, cooperative bearing, also be provided with shear hinge 5 between adjacent floating plate, each several part that shear hinge 5 is positioned on adjacent floating plate carries out leveling by backing plate 8, aligns position each other.。The track structures such as rail, fastener and sleeper are arranged on floating plate, are in this case convenient to see clearly other structures, are not specifically illustrated by track structure in the drawings, hereby illustrate.
Below for floating plate 2, illustrate the installation leveling method of floating plate in prefabricated floating plate railway roadbed of the present invention shown in Fig. 1 and Fig. 2, specific operation process is as follows:
(1) floating plate 2 identified according to ruling in railway roadbed basis 6 and the plan-position of plate end isolation mounting 10, plate end isolation mounting 10 is placed in precalculated position, utilize hoisting transportation equipment (not shown) to be placed on plate end isolation mounting 10 pre-processed floating plate 2 again, adjust the plan-position of floating plate 2;
(2) as shown in Figure 3 and Figure 4, using floating plate 2 along the either end of plate body longitudinal direction as free end C, then floating plate 2 holds D along the other end of plate body longitudinal direction as adjustment, utilize jack 9 at floating plate plate body longitudinal centre line place by the free end C jack-up of floating plate, until the free end C of floating plate and the plate end vibration isolator 10 that arranges below it depart from completely, floating plate 2 enters the static determinacy state of three-point support, and the plate end vibration isolator 10 that namely jack 9 that arranged by its free end C of floating plate and adjustment end D both sides are arranged supports jointly;
(3) actual height of floating plate plate body upper surface relative to disjunction mark (not shown) of laying a railway track that floating plate 2 adjusts end respective panels end isolation mounting position, D both sides is measured respectively, the design elevation of contrast railway roadbed, calculate difference between the two, be adjusted the thickness of height adjusting cushion plate needed for each plate end isolation mounting of end both sides;
(4) jack 9 is let out carry, the free end C of floating plate 2 is made to fall to being back on the plate end isolation mounting 10 that arranges below it, recycle jack at floating plate plate body longitudinal centre line place by the adjustment end jack-up of floating plate, until the adjustment end of floating plate and the plate end vibration isolator that arranges below it depart from completely, floating plate enters the static determinacy state of three-point support;
(5) height adjusting cushion plate 7 each plate end isolation mounting 10 of D both sides setting being placed respectively respective thickness is held floating plate 2 adjustment;
(6) actual height of floating plate plate body upper surface relative to disjunction mark of laying a railway track of respective panels end isolation mounting position, floating plate 2 free end C both sides is measured respectively, the design elevation of contrast railway roadbed, determines the thickness of height adjusting cushion plate needed for free end C both sides each plate end isolation mounting 10;
(7) jack 9 is let out carry, make floating plate adjust end D to fall, utilize jack by the free end C jack-up again of floating plate 2, each plate end isolation mounting that floating plate free end both sides are arranged is placed the height adjusting cushion plate 7 of respective thickness respectively, then floating plate free end is fallen again, complete the first jacking leveling of one piece of floating plate, as shown in Figure 5;
(8) actual height of floating plate plate body upper surface relative to disjunction mark of laying a railway track of floating plate free end C and adjustment end respective panels end isolation mounting position, D both sides is measured respectively, the design elevation of contrast railway roadbed, calculate difference between the two, height adjusting cushion plate 7 gross thickness between floating plate and correspondence position plate end isolation mounting is again adjusted according to height difference, until floating plate 2 highly meets design requirement, complete the accurate jacking leveling of floating plate 2;
(9) repeat above-mentioned steps, complete the first jacking leveling of all floating plates in ballast bed structure and accurate jacking leveling one by one, namely realize the installation leveling of floating plate in prefabricated floating plate railway roadbed.
After realizing the installation leveling of floating plate in prefabricated floating plate railway roadbed, then on floating plate, assemble the track structures such as shear hinge, rail, fastener and sleeper, form complete floating ballast bed structure as depicted in figs. 1 and 2.Certainly different according to operating habit, also the elements such as rail, fastener, sleeper or shear hinge can be assembled in advance on floating plate, but before unrealized installation leveling finally, the retaining element such as shear hinge, fastener must not be locked, in order to avoid change the normal allocation of floating plate static load on flexible member, cause measure error, levelling effect is installed in impact.
In addition, the inventive method is in embody rule process, also hanging device can be utilized to substitute jack along plate body longitudinal centre line place, the free end of floating plate or adjustment end are sling, until the free end of floating plate or adjustment end with its below the plate end vibration isolator that arranges depart from completely, floating plate enters the static determinacy state of three-point support.Due to floating plate utilize hanging device to sling along the two ends of plate body longitudinal direction simultaneously time, floating plate entirety is in suspended state still can keep stable, therefore when first jacking leveling, can also to operate as follows: utilize hanging device to substitute jack and to sling the free end of floating plate, determine the thickness adjusting height adjusting cushion plate needed for each plate end isolation mounting of end both sides, fall free end, to sling again the adjustment end of floating plate, determine the thickness of height adjusting cushion plate needed for each plate end isolation mounting of free end both sides, then hanging device is utilized also to be sling by the free end of floating plate, floating plate entirety is made to be in suspended state, each plate end isolation mounting that floating plate free end and adjustment end both sides are arranged is placed the height adjusting cushion plate of respective thickness respectively, then floating plate entirety is fallen, complete the first jacking leveling of one piece of floating plate.It is pointed out that the horizontal level due to floating plate entirety suspension rear plate body may be moved, therefore after floating plate entirety falls, the horizontal level of floating plate should be reaffirmed.The advantage of this adjustment mode is, the height adjusting cushion plate on all plates end isolation mounting of floating plate two ends can disposablely be dosed complete, can reduce the transport link of height adjusting cushion plate, strengthens the continuity of constructing operation.This application process also goes in other embodiments of the invention, all in the protection domain of application claims.
The installation leveling method of floating plate in prefabricated floating plate railway roadbed of the present invention, simple to operate, engineering examination paving result shows, does not need repeatedly to heighten leveling to floating plate, substantially can realize disposablely heightening leveling in installation process, fast very convenient, which overcome the technical bottleneck of existing method of operating, be conducive to improving speed of application further, meet the requirement of construction period, it greatly improves the applicability of steel spring floating slab road bed technology, market application foreground is very wide.
Embodiment two
Still for the prefabricated floating plate railway roadbed of structure described in embodiment one, every block floating plate is by four plate end isolation mounting common support, different from embodiment one, in this routine described prefabricated floating plate railway roadbed of the present invention, the jacking of floating plate is installed in leveling method, when putting floating plate in step (1), according to step (1) described method, place in proper order and adjust the plan-position of polylith floating plate, form at least one and workshop section is installed, first jacking leveling and accurate jacking leveling are implemented to each the block floating plate installed in workshop section, realize the installation leveling of floating plate in prefabricated floating plate railway roadbed.
In this routine described prefabricated floating plate railway roadbed of the present invention, the jacking of floating plate is installed in leveling method, and the first jacking leveling of the short floating plate of prefabricated is identical with the method described in embodiment one with accurate jacking Levelling operation, in this no longer repeated description.
Compared with embodiment one, in this routine described prefabricated floating plate railway roadbed of the present invention, leveling method is installed in the jacking of floating plate, is conducive to the continuity strengthening constructing operation, optimizes inter process flow process, and then effectively improve efficiency of construction.
Embodiment three
Still for the prefabricated floating plate railway roadbed of structure described in embodiment one, based on the know-why of embodiment one and embodiment two, in prefabricated floating plate railway roadbed of the present invention, the jacking of floating plate is installed leveling method and can also be done following differentiation, and its specific operation process is as follows:
(1) floating plate identified according to ruling in railway roadbed basis and the plan-position of plate end isolation mounting, plate end isolation mounting is placed in precalculated position respectively, hoisting transportation equipment is utilized by pre-processed floating plate to be placed on plate end isolation mounting again, adjust the plan-position of the short floating plate of prefabricated, according to the method described above, place in proper order and adjust the plan-position of the short floating plate of polylith prefabricated, forming at least one and workshop section is installed;
(2) select the one end of installing workshop section as initial, using corresponding for initiating terminal first piece of floating plate along the either end of plate body longitudinal direction as free end, then this floating plate is held along the other end of plate body longitudinal direction as adjustment, utilize the free end jack-up of jack at floating plate plate body longitudinal centre line place by floating plate, until the free end of floating plate and the plate end vibration isolator that arranges below it depart from completely, floating plate enters the static determinacy state of three-point support, and the plate end vibration isolator that namely jack that arranged by its free end of floating plate and adjustment end both sides are arranged supports jointly;
(3) actual height of floating plate plate body upper surface relative to disjunction mark (not shown) of laying a railway track of floating plate adjustment end respective panels end isolation mounting position, both sides is measured respectively, the design elevation of contrast railway roadbed, calculate difference between the two, be adjusted the thickness of height adjusting cushion plate needed for each plate end isolation mounting of end both sides;
(4) jack is let out carry, the free end of floating plate is made to fall to being back on the plate end isolation mounting that arranges below it, recycle jack at floating plate plate body longitudinal centre line place by the adjustment end jack-up of floating plate, until the adjustment end of floating plate and the plate end vibration isolator that arranges below it depart from completely, floating plate enters the static determinacy state of three-point support;
(5) on each plate end isolation mounting of floating plate adjustment end both sides setting, place the height adjusting cushion plate of respective thickness respectively;
(6) actual height of floating plate plate body upper surface relative to disjunction mark of laying a railway track of respective panels end isolation mounting position, floating plate free end both sides is measured respectively, the design elevation of contrast railway roadbed, determines the thickness of height adjusting cushion plate needed for each plate end isolation mounting of free end both sides;
(7) jack is let out carry, make floating plate adjust end to fall, utilize jack by the free end of floating plate again jack-up, each plate end isolation mounting that floating plate free end both sides are arranged is placed the height adjusting cushion plate of respective thickness respectively, then floating plate free end is fallen again, complete the first jacking leveling of one piece of floating plate;
(8) according to the first jacking leveling step of above-mentioned floating plate, the first jacking leveling of installing all floating plates in workshop section is completed successively;
(9) actual height of floating plate plate body upper surface relative to disjunction mark of laying a railway track of the free end installing workshop section's section start floating plate and adjustment end respective panels end isolation mounting position, both sides is measured respectively, the design elevation of contrast railway roadbed, calculate difference between the two, the height adjusting cushion plate gross thickness between floating plate and correspondence position plate end isolation mounting is again adjusted according to height difference, until floating plate height meets design requirement, complete the accurate jacking leveling of this floating plate;
(10) according to the accurate jacking leveling step of above-mentioned floating plate, the accurate jacking leveling of installing all floating plates in workshop section is completed one by one;
(11) repeat above-mentioned steps, complete the first jacking leveling of floating plate in all installation workshop sections in ballast bed structure and accurate jacking leveling, namely realize the installation leveling of floating plate in prefabricated floating plate railway roadbed.
The installation leveling method of floating plate in prefabricated floating plate railway roadbed described in this example, the continuity of constructing operation is better, is conducive to optimizing inter process flow process, and then effectively improves efficiency of construction.
Embodiment four
Compared with embodiment three, the kind of the difference of the installation leveling method of the short-and-medium floating plate of this routine described prefabricated floating plate railway roadbed of the present invention is, according to step (1) in embodiment three to step (8) described method, after completing the first jacking leveling of installing all floating plates in workshop section successively, operate as follows again: on floating plate belonging to installation workshop section, set up rail, measure plate end isolation mounting corresponding position tread in each floating plate relatively to lay a railway track the actual height of disjunction mark, contrast design elevation, on plate end isolation mounting, height adjusting cushion plate is increased and decreased accordingly according to comparing result, until complete the accurate jacking leveling of installing all floating plates in workshop section, according to said method and then the accurate jacking leveling completing all floating plates in ballast bed structure, realize the installation leveling of floating plate in prefabricated floating plate railway roadbed.
Method described in this example, while the installation leveling realizing the short floating plate of prefabricated in floating plate railway roadbed, also achieves the adjustment of rising Rail, decreases adjustment operation, improve efficiency of construction.
It is to be noted especially, as a kind of existing conventional application mode, flexible railway rail pad is provided with between rail and fastener, in accurate jacking leveling process, when the tread recorded relatively lay a railway track the actual height of disjunction mark and the difference of Track desigh elevation be less than 2mm time, also the thickness controlling railway rail pad can be utilized to carry out leveling, no longer adjust the height adjusting cushion plate thickness on respective panels end isolation mounting, this operating type effectively can reduce the short floating plate of jacking prefabricated and correct the number of times of the short floating plate plan-position of prefabricated, thus reduction difficulty of construction, improve efficiency of construction, also among the protection domain of application claims.
Embodiment five
Prefabricated floating plate railway roadbed as shown in Figure 6, Figure 7, distinguish with the structure of the railway roadbed of prefabricated floating plate shown in Fig. 1 and Fig. 2 in embodiment one and be, shared plate end isolation mounting is set between adjacent floating plate in ballast bed structure, wherein plate end isolation mounting 11 carries the abutting end of floating plate 1 and floating plate 2 simultaneously, plate end isolation mounting 12 carries the abutting end of floating plate 2 and floating plate 3 simultaneously, and plate end isolation mounting 13 carries the abutting end of floating plate 3 and floating plate 4 simultaneously.It is pointed out that in actual applications, plate end isolation mounting 11,12 and 13 can be identical at this differentiation plate end isolation mounting 11, plate end isolation mounting 12, plate end isolation mounting 13 only for convenience of description.
For floating plate 2, the installation leveling method of floating plate in this routine described prefabricated floating plate railway roadbed is specifically described below:
(1) floating plate identified according to ruling in railway roadbed basis 6 and the plan-position of plate end isolation mounting, the plate end isolation mounting of floating plate 1,2 and 3 correspondence is placed in precalculated position respectively, hoisting transportation equipment is utilized to be placed on plate end isolation mounting respectively pre-processed floating plate 1,2 and 3 again, adjust the plan-position of floating plate 1,2 and 3, wherein plate end isolation mounting 11 carries the abutting end of floating plate 1 and floating plate 2 simultaneously, and plate end isolation mounting 12 carries the abutting end of floating plate 2 and floating plate 3 simultaneously;
(2) one end coordinated using floating plate 2 and floating plate 3 with plate end isolation mounting 12 is held as adjusting, one end that then floating plate 2 coordinates with plate end isolation mounting 11 is free end, one end that floating plate 3 coordinates with plate end isolation mounting 13 is free end, utilize jack 9 respectively at floating plate 2 and floating plate 3 plate body longitudinal centre line place by the free end jack-up of floating plate 2 and floating plate 3, until the free end of floating plate 2 and the plate end vibration isolator 11 that arranges below it depart from completely, the free end of floating plate 3 and the plate end vibration isolator 13 arranged below it depart from completely, floating plate 2 and floating plate 3 enter the static determinacy state of three-point support simultaneously, namely the plate end vibration isolator 12 that the jack 9 that arranges by its free end of floating plate 2 and 3 and adjustment end both sides are arranged supports jointly, specifically as shown in Figure 8 and Figure 9,
(3) actual height of plate body upper surface relative to disjunction mark of laying a railway track of corresponding each plate end isolation mounting 12 position of adjustment end of floating plate 2 and 3 is measured respectively, the design elevation of contrast railway roadbed, calculate difference between the two, be adjusted the thickness of height adjusting cushion plate needed for end both sides each plate end isolation mounting 12;
(4) jack 9 is let out carry, the free end of floating plate 2 and 3 is made to fall to being back on the plate end isolation mounting that arranges below it respectively, recycle jack 9 at floating plate plate body longitudinal centre line place by the adjustment end jack-up of floating plate 2 and 3, until the adjustment end of floating plate and the plate end vibration isolator that arranges below it depart from completely, floating plate enters the static determinacy state of three-point support;
(5) each plate end isolation mounting 12 arranged in the adjustment end both sides of floating plate 2 and 3 is respectively placed respectively the height adjusting cushion plate 7 of respective thickness, complete the first jacking leveling adjusting end for floating plate 2, it is pointed out that and also complete the first jacking leveling that floating plate 3 adjusts end simultaneously;
(6) according to the method described above, each plate end isolation mounting 11 that floating plate 1 and 2 abutting end both sides are arranged also is placed the height adjusting cushion plate 7 of suitable thickness respectively, complete the first jacking leveling for floating plate 2 free end, it is pointed out that the first jacking leveling also completing floating plate 1 simultaneously and coordinate one end with plate end isolation mounting 11;
(7) jack pressure release, drops on floating plate 2 and has set up on the plate end isolation mounting 11 and 12 of height adjusting cushion plate 7, realizes the first jacking leveling to floating plate 2, specifically as shown in Figure 10;
(8) actual height of floating plate plate body upper surface relative to disjunction mark of laying a railway track of floating plate 2 free end and adjustment end respective panels end isolation mounting position, both sides is measured respectively, the design elevation of contrast railway roadbed, calculate difference between the two, height adjusting cushion plate 7 gross thickness between floating plate and correspondence position plate end isolation mounting is again adjusted according to height difference, until floating plate 2 highly meets design requirement, complete the accurate jacking leveling of floating plate 2;
(9) repeat above-mentioned steps, complete the first jacking leveling of all floating plates in ballast bed structure and accurate jacking leveling one by one, namely realize the installation leveling of floating plate in prefabricated floating plate railway roadbed.
This routine described method, in units of monolithic floating plate, completes the first jacking leveling of every block floating plate in ballast bed structure and accurate jacking leveling, and then realizes the installation leveling of floating plate in prefabricated floating plate railway roadbed.In actual applications; in conjunction with the know-why described in this example and embodiment three; also whole ballast bed structure can be divided at least one and workshop section is installed; after completing the first jacking leveling of installing all floating plates in workshop section; complete the accurate jacking leveling of all floating plates again; and then realize the installation leveling of floating plate in prefabricated floating plate railway roadbed, also can realize same effect, all within the protection domain of application claims.In addition, at the position that prefabricated floating plate railway roadbed is connected with solid concrete roabed, the floating plate adjacent with solid concrete roabed one end adjacent with solid concrete roabed can arrange independently plate end isolation mounting, when carrying out installation leveling to this block floating plate, by this routine described method and methods combining use described in can be implemented, there iing the method for common plate end isolation mounting side described in this example to carry out installation leveling, utilizing the method described in embodiment one to carry out installation leveling using the side of independent plate end isolation mounting.
In method described in this example, the 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 floating plate upper surface corresponding to common plate end isolation mounting place relative to disjunction mark of laying a railway track, to need the adjacent two pieces of floating plates coordinated with common plate end isolation mounting to be placed in all in advance on plate end isolation mounting and to adjust plan-position, and the abutting end of plate end isolation mounting to adjacent two pieces of floating plates shared all is remained valid bearing state, mainly by these above-mentioned measures, make the stressed closer to actual forced status during static load of plate end isolation mounting, therefore measurement result is more accurate, also directive significance is had more, determine that the thickness of required height adjusting cushion plate is more accurate rationally accordingly, can effectively reduce adjustment number of times, improve efficiency of construction.
In addition be noted that, due in the method described in this example, while installation leveling floating plate 2, the abutting end of floating plate 1 and floating plate 3 and floating plate 2 is synchronously achieved first jacking leveling respectively, therefore follow-up in the adjustment process of floating plate 1 and floating plate 3, itself and floating plate 2 abutting end only need to carry out accurate jacking leveling.
Embodiment six
In this routine described prefabricated floating plate railway roadbed, described in the installation leveling method of floating plate and embodiment five, the difference of method is: in step (1), hoisting transportation equipment is utilized by pre-processed floating plate to be placed in after on plate end isolation mounting, first confirming remains valid between each plate end isolation mounting and floating plate supports, the plate end isolation mounting not realizing with floating plate bottom surface fully contacting pre-sets height adjusting cushion plate, until all realize between all plate end isolation mountings and the short floating plate of prefabricated effectively supporting, and then according to the method described in embodiment five, first jacking leveling and accurate jacking Levelling operation are implemented to the short floating plate of prefabricated, no longer repeated description is carried out at this.
Method described in this example, perfect further to institute's recording method in embodiment five, because railway roadbed basis exists the reasons such as construction error, when adjacent two pieces of floating plates are placed on shared plate end isolation mounting, the situation that the plate end isolation mounting of respective location does not contact completely with floating plate may be there is, thus the accuracy of follow-up measurement is impacted, by the measure described in this example, can effectively eliminate this hidden danger, therefore measurement result is more accurate, also directive significance is had more, determine that the thickness of required height adjusting cushion plate is more accurate rationally accordingly, can effectively reduce adjustment number of times, improve efficiency of construction.
Embodiment seven
In order to the adverse effect that the height error eliminating railway roadbed foundation construction is brought, compared with method described in embodiment five, in prefabricated floating plate railway roadbed of the present invention, the installation leveling method of floating plate can also do following improvement:
In step (1), on railway roadbed basis before board for putting end isolation mounting, first each center, plate end isolation mounting plan-position that measuring, railway roadbed basis rules identifies is relative to the actual height of disjunction mark of laying a railway track, the design height on contrast railway roadbed basis, calculated height difference, then board for putting end isolation mounting, part lower than design height is recompensed by the height adjusting cushion plate increasing respective thickness on plate end isolation mounting, to eliminate the adverse effect that railway roadbed foundation construction error causes, and then utilize hoisting transportation equipment to be placed in by floating plate on plate end isolation mounting and adjust plan-position, later step is identical with the description in embodiment five, no longer repeat at this.
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, namely railway roadbed basis only allows the design height less than or equal to standard, should higher than the design height of standard.
Be presented above the part exemplary embodiments of the installation leveling method of floating plate in prefabricated floating plate railway roadbed of the present invention; object is the convenient method understanding the present invention better; it should not be considered as limitation of the present invention; technical scheme wherein in each embodiment also can cross-reference; as long as based on know-why of the present invention, all among the protection domain of application claims.
Claims (10)
1. the installation leveling method of floating plate in prefabricated floating plate railway roadbed, is characterized in that when floating plate is only supported by plate end isolation mounting, and it is installed leveling method and comprises the steps:
(1) floating plate identified according to ruling in railway roadbed basis and the plan-position of plate end isolation mounting, plate end isolation mounting is placed in precalculated position, utilized by pre-processed floating plate hoisting transportation equipment to be placed on plate end isolation mounting again, adjust the plan-position of floating plate;
(2) using floating plate along the either end of plate body longitudinal direction as free end, then floating plate is held along the other end of plate body longitudinal direction as adjustment, utilize the free end jack-up of jack at floating plate plate body longitudinal centre line place by floating plate, until the free end of floating plate and the plate end vibration isolator that arranges below it depart from completely, floating plate enters the static determinacy state of three-point support, and the plate end isolation mounting that namely jack that arranged by its free end of floating plate and adjustment end both sides are arranged supports jointly;
(3) actual height of floating plate plate body upper surface relative to disjunction mark of laying a railway track of floating plate adjustment end respective panels end isolation mounting position, both sides is measured respectively, the design elevation of contrast railway roadbed, calculate difference between the two, be adjusted the thickness of height adjusting cushion plate needed for each plate end isolation mounting of end both sides;
(4) jack is let out carry, the free end of floating plate is made to fall to being back on the plate end isolation mounting that arranges below it, recycle jack at floating plate plate body longitudinal centre line place by the adjustment end jack-up of floating plate, until the adjustment end of floating plate and the plate end isolation mounting that arranges below it depart from completely, floating plate enters the static determinacy state of three-point support;
(5) on each plate end isolation mounting of floating plate adjustment end both sides setting, place the height adjusting cushion plate of respective thickness respectively;
(6) actual height of floating plate plate body upper surface relative to disjunction mark of laying a railway track of respective panels end isolation mounting position, floating plate free end both sides is measured respectively, the design elevation of contrast railway roadbed, determines the thickness of height adjusting cushion plate needed for each plate end isolation mounting of free end both sides;
(7) jack is let out carry, make floating plate adjust end to fall, utilize jack by the free end of floating plate again jack-up, each plate end isolation mounting that floating plate free end both sides are arranged is placed the height adjusting cushion plate of respective thickness respectively, then floating plate free end is fallen again, complete the first jacking leveling of one piece of floating plate;
(8) actual height of floating plate plate body upper surface relative to disjunction mark of laying a railway track of floating plate free end and adjustment end respective panels end isolation mounting position, both sides is measured respectively, the design elevation of contrast railway roadbed, calculate difference between the two, the height adjusting cushion plate gross thickness between floating plate and correspondence position plate end isolation mounting is again adjusted according to height difference, until floating plate height meets design requirement, complete the first jacking leveling of one piece of floating plate and accurate jacking leveling;
(9) repeat above-mentioned steps, complete the accurate jacking leveling of all floating plates in ballast bed structure one by one, namely realize the installation leveling of floating plate in prefabricated floating plate railway roadbed.
2. the installation leveling method of floating plate in prefabricated floating plate railway roadbed according to claim 1, it is characterized in that according to step (1) described method, place in proper order and adjust the plan-position of polylith floating plate, form at least one and workshop section is installed, again first jacking leveling and accurately jacking leveling are implemented to each the block floating plate installed in workshop section, thus realize the installation leveling of floating plate in prefabricated floating plate railway roadbed.
3. the installation leveling method of floating plate in prefabricated floating plate railway roadbed according to claim 2, it is characterized in that selecting the one end of installing workshop section as initial, successively to after in installation workshop section, all floating plates implement first jacking leveling, successively accurate jacking leveling is carried out to all floating plates in installation workshop section again, thus realize the installation leveling of floating plate in prefabricated floating plate railway roadbed.
4. the installation leveling method of floating plate in prefabricated floating plate railway roadbed according to claim 3, it is characterized in that after in installation workshop section, all floating plates implement first jacking leveling, floating plate belonging to installation workshop section sets up rail, measure plate end isolation mounting corresponding position tread in each floating plate relatively to lay a railway track the actual height of disjunction mark, contrast design elevation, on plate end isolation mounting, height adjusting cushion plate is increased and decreased accordingly according to comparing result, until complete the accurate jacking leveling of installing all floating plates in workshop section, according to said method and then the accurate jacking leveling completing all floating plates in ballast bed structure, realize the installation leveling of floating plate in prefabricated floating plate railway roadbed.
5. the installation leveling method of floating plate in prefabricated floating plate railway roadbed according to claim 4, it is characterized in that when tread relatively lay a railway track the actual height of disjunction mark and the difference of design altitude be less than 2mm time, utilize railway rail pad to carry out leveling, no longer adjust the height adjusting cushion plate thickness on respective panels end isolation mounting.
6. the installation leveling method of floating plate in prefabricated floating plate railway roadbed according to claim 1 or 2, when it is characterized in that arranging shared plate end isolation mounting when between adjacent floating plate, before measuring the actual height of floating plate upper surface corresponding to shared plate end isolation mounting place relative to disjunction mark of laying a railway track, to need adjacent two pieces of floating plates to be placed in all in advance on this plate end isolation mounting shared and to adjust plan-position, then the non-adjacent end of two pieces of floating plates is jack-uped at floating plate plate body longitudinal centre line place respectively, make adjacent two pieces of floating plates be in the static determinacy state of three-point support simultaneously, and the abutting end of plate end isolation mounting to two pieces of floating plates shared between adjacent two pieces of floating plates is remained valid bearing state, disjunction mark of relatively laying a railway track again is implemented to measure.
7. the installation leveling method of floating plate in prefabricated floating plate railway roadbed according to claim 1 or 2, it is characterized in that in step (1), hoisting transportation equipment is utilized by pre-processed floating plate to be placed in after on plate end isolation mounting, first confirming remains valid between each plate end isolation mounting and floating plate supports, the plate end isolation mounting not realizing with floating plate bottom surface fully contacting pre-sets height adjusting cushion plate, until all realize between all plate end isolation mountings and floating plate effectively supporting, and then first jacking leveling and accurate jacking Levelling operation are implemented to floating plate.
8. the installation leveling method of floating plate in prefabricated floating plate railway roadbed according to claim 1 or 2, it is characterized in that in step (1), on railway roadbed basis before board for putting end isolation mounting, first each center, plate end isolation mounting plan-position that measuring, railway roadbed basis rules identifies is relative to the actual height of disjunction mark of laying a railway track, the design height on contrast railway roadbed basis calculates height difference, then board for putting end isolation mounting, height difference part lower than design height is recompensed by the height adjusting cushion plate increasing respective thickness on plate end isolation mounting, to eliminate the adverse effect that railway roadbed foundation construction error causes, and then utilize hoisting transportation equipment to be placed in by floating plate on plate end isolation mounting, adjust the horizontal level of floating plate.
9. the installation leveling method of floating plate in prefabricated floating plate railway roadbed according to claim 1, it is characterized in that utilizing hanging device to substitute jack slings the free end of floating plate or adjustment end along plate body longitudinal centre line place, until the free end of floating plate or adjustment end with its below the plate end isolation mounting that arranges depart from completely, floating plate enters the static determinacy state of three-point support.
10. the installation leveling method of floating plate in prefabricated floating plate railway roadbed according to claim 9, it is characterized in that utilizing hanging device to substitute jack to sling the free end of floating plate, determine the thickness adjusting height adjusting cushion plate needed for each plate end isolation mounting of end both sides, fall free end, to sling again the adjustment end of floating plate, determine the thickness of height adjusting cushion plate needed for each plate end isolation mounting of free end both sides, then hanging device is utilized also to be sling by the free end of floating plate, floating plate entirety is made to be in suspended state, each plate end isolation mounting that floating plate free end and adjustment end both sides are arranged is placed the height adjusting cushion plate of respective thickness respectively, then floating plate entirety is fallen, complete the first jacking leveling of one piece of floating plate.
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| CN109024098B (en) * | 2018-07-23 | 2021-05-18 | 北京易科路通铁道设备有限公司 | Maintainable point-laying type floating track plate and maintenance method thereof |
| CN217948625U (en) * | 2022-07-28 | 2022-12-02 | 中铁上海工程局集团有限公司 | Jacking device for long-distance floating slab track bed |
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