CN105714619B - The construction method of plate-type ballastless ballast bed structure - Google Patents
The construction method of plate-type ballastless ballast bed structure Download PDFInfo
- Publication number
- CN105714619B CN105714619B CN201610249434.4A CN201610249434A CN105714619B CN 105714619 B CN105714619 B CN 105714619B CN 201610249434 A CN201610249434 A CN 201610249434A CN 105714619 B CN105714619 B CN 105714619B
- Authority
- CN
- China
- Prior art keywords
- concrete
- track plates
- plate
- press
- construction method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Railway Tracks (AREA)
Abstract
The present invention provides a kind of construction method of plate-type ballastless ballast bed structure, it is characterised in that：The construction method at least comprises the following steps：Constructed on the roadbed concrete bed, separation layer is laid on the concrete bed, set convex to keep off platform on the concrete bed, the convex gear platform is passed through the separation layer；Track plates are laid between the convex gear platform of two neighboring concrete bed, some steam vents and some pressure injection holes are at least offered on the track plates；In the side fixed and arranged concrete press-casting layer template of the track plates；Into the pressure injection hole of the track plates, pressurization injection concrete makes concrete shaping in concrete press-casting layer template constitute concrete press-casting layer, and the concrete press-casting layer is located above the separation layer.It is an advantage of the invention that：Air is effectively discharged when can be injected with effective guarantee concrete press-casting layer, and the frictional force between track plates and concrete press-casting layer is improved.
Description
Technical field
The present invention relates to high speed railway construction middle orbit plate laying construction technology, and in particular to a kind of plate-type ballastless railway roadbed knot
The construction method of structure, belongs to plate-type ballastless railway roadbed laying construction technical field.
Background technology
Current non-fragment orbit is representative board-like as the main track structure pattern of developed country's high-speed railway
Slab track for mainly having German Bo Ge, radar and Japan of ballastless track structure etc..China's non-fragment orbit is frequently with certainly
Air-free concrete is exhausted as filling bed, its track plates using steam vent mode of gathering, and this technique has at following 4 points not
Foot.
First, self-compacting concrete mobility is difficult to control；Second, filling bed is constructed using self-compacting concrete, it is difficult to
Differentiate concrete filling state, general at present that filling is controlled using concrete amount, judge accuracy is relatively low, often leads to most
Also need afterwards using slip casting repairing；3rd, the steam vent that gathered in track plates general at present is exhausted, but track switch plate suqare compared with
Greatly, ventilation aperture area ratio is extremely low, is filled in addition using concrete gravity power, pressure is smaller, is connect with track plates bottom surface
0 pressure of contact portion position, or be not in contact with all, it is easy to cause the position gas between steam vent not discharge；4th, self-compaction
Concrete pour into must assure that it is continuous, can just have preferable filling effect at a slow speed, speed of application is slow.
Above reason is all easily caused concrete filling leakiness, and intensity of filling bed is relatively low, is easily caused track plates bottom empty
Gap is developed, train by when switching turnout plate space develop the easy stress concentration in position, occur that track plates gap, wing are bent and packed layer is opened
The phenomenon such as split, influence to cause track plates lesion ruptures under track plates service life, serious conditions, directly trigger security incident.
At present typically using being detected after the completion of filling, discovery has larger space position to be repaired using slip casting, shadow
Construction quality is rung, is delayed the construction period, a large amount of human and material resources, financial resources are wasted.
The content of the invention
The purpose of the present invention is that there is provided a kind of construction party of plate-type ballastless ballast bed structure according to above-mentioned the deficiencies in the prior art
Method, by opening up steam vent and pressure injection hole on track plates, concrete pressurization injection, can be injected with effective guarantee concrete in addition
When air effectively discharge.
The object of the invention is realized and completed by following technical scheme：
A kind of construction method of plate-type ballastless ballast bed structure, the plate-type ballastless ballast bed structure is arranged on roadbed, and it is special
Levy and be：The construction method at least comprises the following steps：
Constructed on the roadbed concrete bed, separation layer is laid on the concrete bed, in the concrete
Set convex to keep off platform on base, the convex gear platform is passed through the separation layer；
Track plates are laid between the convex gear platform of two neighboring concrete bed, are at least opened on the track plates
Provided with some steam vents and some pressure injection holes；
In the side fixed and arranged concrete press-casting layer template of the track plates；
Into the pressure injection hole of the track plates, pressurization injection concrete makes concrete in concrete press-casting layer mould
Shaping constitutes concrete press-casting layer in plate, and the concrete press-casting layer is located above the separation layer.
After the completion of the track slab pavement, fastener and rail is fixedly mounted on its surface, the installation of the fastener is logical
What the fastener hole crossed in track plates surface programming was realized, the rail is fixedly mounted on the fastener.
In the pressurization injection process of the concrete, when the height of the concrete in concrete press-casting layer template
When degree is not less than the plate bottom height of the track plates, stop the injection concrete.
Before the pressurization injection process of the concrete, the steel of the concrete press-casting layer is laid on the top of separation layer
Muscle.
Some steam vents and some pressure injection holes are preset on the track plates respectively, and the track plates bottom
Crisscross some exhaust ditches are offered, the exhaust ditch is connected with the steam vent.
It is an advantage of the invention that：First, use concrete flowability requirement to be less than self-compacting concrete, be easily configured；
Second, filling bed is constructed using pressurization injection concrete, concrete injection state on the one hand can be grasped using injection rate, separately
On the one hand the outer shifting method of template is taken directly to inject situation by observing the real-time concrete of grasping of peripheral concrete height；The
Three, track plates lower exhaust ditch is connected with steam vent, in addition concrete pressurization injection, can inject space-time with effective guarantee concrete
Gas is effectively discharged；4th, concrete injection can finally fill whole exhaust ditch and steam vent, further increase track plates and mixed
Frictional force between solidifying soil pressure note layer；5th, concrete press-casting layer uses grouting under pressure mode, can not only improve coagulation soil pressure
Note speed of application, additionally it is possible to ensure that concrete filling is closely knit, effectively prevent track plates because filling bed space develop and unbalance stress,
There are the phenomenons such as track plates gap, wing song and packed layer cracking；6th, pressurization injection can improve intensity after concrete setting,
By concrete bed, concrete press-casting layer, precast track plate formation monocoque structure, greatly improve railway roadbed stability and
Service life.
Brief description of the drawings
Fig. 1 is floor plan of the invention；
Fig. 2 is I-I profile in Fig. 1.
Embodiment
Feature of present invention and other correlated characteristics are described in further detail by embodiment below in conjunction with accompanying drawing, so as to
In the understanding of technical staff of the same trade：
As shown in Figure 1-2, mark 1-12 is respectively in figure：Concrete bed 1, separation layer 2, concrete press-casting layer 3, convex
Keep off platform 4, track plates 5, rail 6, fastener 7, steam vent 8, pressure injection hole 9, exhaust ditch 10, fastener hole 11, template 12.
Embodiment：The construction method of plate-type ballastless ballast bed structure in the present embodiment comprises the following steps：
The present embodiment is in Specific construction, with following steps：
After the completion of step 1, subgrade construction, constructed above roadbed concrete bed 1 and convex gear platform 4, in concrete bottom
The surface laying separation layer 2 of seat 1, the material of separation layer 2 can be geotextiles, and convex gear platform 4 is arranged on concrete bed 1 and worn
Cross separation layer 2；
Step 2, the top of separation layer 2 formed in step 1 laying concrete press-casting 3 inside reinforcing bar of layer, in the convex of formation
Type gear platform 4 surrounding sets resilient sleeper-bearing, after the completion of lay track plates 5；Fastener 7 and steel are carried out after the laying of track plates 5 is completed
The laying of rail 6；
The solidifying soil pressure of the periphery of track plates 5 arrangement after the completion of step 3, in step 2 laying notes the template 12 of layer 3, template 12
80-120mm arrangements are moved outside the both sides of track plates 5, both sides are close to track plates 5 and arranged in addition, the height of template 12 is 300-350mm；
Step 4, pressurization injection concrete in pressure injection hole 9 in the track plates 5 of completion is laid in step 3, inject pressure
Minimum 0.1MPa, when the inner concrete of template 5 that step 3 moves arrangement at home and abroad reaches 80-150mm higher than the bottom surface value f of track plates 5
Stop injection concrete, form concrete press-casting layer 3, concrete press-casting layer 3 can locally coat track plates 5, make track plates 5 can
To be bonded one with concrete press-casting layer 3, the frictional force of both contacts site is improved.
When two pressure injection holes 9 inject concrete simultaneously in track plates 5, if the pulp of steam vent 8 during pressure injection, use
Cotton yarn is blocked.After the completion of concrete press-casting, cotton yarn is taken out（If having）, mortar is poured into, pressure injection hole 9 and steam vent 8 is arranged
Top surface so that the smooth-going of the top surface of track plates 5 is attractive in appearance.
Concrete bed 1 positioned at roadbed top surface top, its construction when inside can also be disposed with reinforcing bar, play top
Structure function power passes to down the effect for covering roadbed.Separation layer 2 is located between concrete bed 1 and concrete press-casting layer 3, is used for
Isolate concrete bed 1 and concrete press-casting layer 3.The bottom of convex gear platform 4 is fixedly installed on the surface of concrete bed 1, its
Convex stage body passes through separation layer 2, plays a part of isolation concrete bed 1 and concrete press-casting layer 3, is easy to maintenance.Concrete
Reinforcing bar is also disposed with inside pressure injection layer 3, the intensity for improving pressure injection layer.
As shown in figure 1, track plates 5 are fixedly installed between the convex of two neighboring concrete bed 1 gear platform 4, convex gear
Platform 4 primarily serves the effect of the limitation horizontal displacement of track plates 5.
As shown in Fig. 2 track plates 5 are located on concrete press-casting layer 3, be disposed with reinforcing bar inside it, be it is indoor prefabricated, into
Type precision is higher, smooth and beautiful appearance.Multiple steam vents 8 are preset with the plate body of track plates 5, each steam vent 8 runs through rail vertically
The plate body of guidance tape 5, and be connected with the exhaust ditch 10 for being preset in the bottom of track plates 5, some exhaust ditches 10 are arranged in crisscross shape
In the bottom of track plates 5, so, in the pressure injection of concrete press-casting layer 3, the lower exhaust of track plates 5 is significantly increased
The area of passage, it is ensured that concrete press-casting layer 3 is constantly vented completely in pressure injection, it is to avoid filling bed leakiness, air discharge be difficult,
The problem of space is developed.Meanwhile, concrete press-casting layer 3 can finally fill whole exhaust ditch 10 and steam vent 8 in pressure injection, further
Improve the frictional force between track plates 5 and concrete press-casting layer 3.
As depicted in figs. 1 and 2, multiple pressure injection holes 9 are preset on the plate body of track plates 5, and each pressure injection hole 9 is passed vertically through
Track plates 5, are used as concrete import during concrete press-casting 3 pressure injection of layer.
As depicted in figs. 1 and 2, multiple fastener holes 11 are preset on the plate body of track plates 5, and each lower end of fastener hole 11 is not
Through track plates 5, for fastener for installing 7.
The present embodiment is in the specific implementation：Convex its set location of gear platform 4 on concrete bed 1 is arranged on positioned at track
The middle part of plate 5, it is ensured that overall structure is symmetrical, uniform force.Concrete is filled between track plates 5 and convex gear platform 4, to improve two
Bonding strength between person, so as to further improve position-limiting action of the convex gear platform 4 to track plates 5.
The inside of track plates 5 is also disposed with reinforcing bar, to improve the intensity of track plates 5.
Size, intensity and the technical requirements of each part can need to be selected according to actual design in the present embodiment
Select, it is 180-250mm that the thickness of concrete bed 1 typically, which may be selected, according to existing specification, and compression strength is 50-60MPa, its diameter
B is 450-550mm, is highly 340-370mm, concrete slump ＞ 200mm, divergence ＞ in concrete press-casting layer 3
500mm, the thickness of separation layer 2 is 4-6mm, width 2600-3000mm, and more than the width L1300-500mm of track plates 5, track plates 5 are wide
Degree L1 is 2300-2500mm, and thickness is 160-200mm, and length L2 is 3800-4200mm；Further, the diameter e of steam vent 8
For 15-30mm, spacing d1 is 500-800mm, and array pitch d2 is 900-1100mm, and exhaust ditch 10 width d is 40-60mm, depth d4
For 20-40mm, the diameter a of pressure injection hole 9 is 70-90mm, and spacing is 1800-2200mm, a diameter of 15-30mm of fastener hole 11.
Although being elaborated with above-described embodiment referring to the drawings the design to the object of the invention and embodiment,
Those skilled in the art will realize that limited without departing from claim under the precondition of scope, still can be with
Various modifications and variations are made to invention, such as：The specific shape of each part, size and its making material etc. are made, therefore herein not
Repeat one by one.
Claims (5)
1. a kind of construction method of plate-type ballastless ballast bed structure, the plate-type ballastless ballast bed structure is arranged on roadbed, its feature
It is：The construction method at least comprises the following steps：
Constructed on the roadbed concrete bed, separation layer is laid on the concrete bed, in the concrete bed
Upper setting convex keeps off platform, the convex gear platform is passed through the separation layer；
Track plates are laid between the convex gear platform of two neighboring concrete bed, are at least offered on the track plates
Some steam vents and some pressure injection holes；
In the side fixed and arranged concrete press-casting layer template of the track plates, outside the template of the track plates both sides
Move arrangement；
Into the pressure injection hole of the track plates, pressurization injection concrete makes concrete in concrete press-casting layer template
Shaping constitutes concrete press-casting layer, and the concrete press-casting layer is located above the separation layer.
2. a kind of construction method of plate-type ballastless ballast bed structure according to claim 1, it is characterised in that：In the track
After the completion of plate laying, fastener and rail is fixedly mounted on its surface, the installation of the fastener is by track plates surface programming
Fastener hole realize, the rail is fixedly mounted on the fastener.
3. a kind of construction method of plate-type ballastless ballast bed structure according to claim 1, it is characterised in that：In the coagulation
In the pressurization injection process of soil, when the height of the concrete in concrete press-casting layer template is not less than the track plates
Plate bottom height when, stop the injection concrete.
4. a kind of construction method of plate-type ballastless ballast bed structure according to claim 1, it is characterised in that：In the coagulation
Before the pressurization injection process of soil, the reinforcing bar of the concrete press-casting layer is laid on the top of separation layer.
5. a kind of construction method of plate-type ballastless ballast bed structure according to claim 1, it is characterised in that：Some rows
Stomata and some pressure injection holes are preset on the track plates respectively, and if the track plates bottom offer it is crisscross
Dry exhaust ditch, the exhaust ditch is connected with the steam vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610249434.4A CN105714619B (en) | 2016-04-21 | 2016-04-21 | The construction method of plate-type ballastless ballast bed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610249434.4A CN105714619B (en) | 2016-04-21 | 2016-04-21 | The construction method of plate-type ballastless ballast bed structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105714619A CN105714619A (en) | 2016-06-29 |
| CN105714619B true CN105714619B (en) | 2017-10-27 |
Family
ID=56161242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610249434.4A Active CN105714619B (en) | 2016-04-21 | 2016-04-21 | The construction method of plate-type ballastless ballast bed structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105714619B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086061B (en) * | 2017-12-28 | 2023-12-22 | 北京交通大学 | Limiting structure of ballastless track |
| CN110656545A (en) * | 2018-06-28 | 2020-01-07 | 中铁第五勘察设计院集团有限公司 | Tramcar fastener and base plate thereof |
| CN110080047A (en) * | 2019-05-11 | 2019-08-02 | 中铁第四勘察设计院集团有限公司 | A kind of modern tram fastener system |
| CN110468628A (en) * | 2019-08-28 | 2019-11-19 | 吴永芳 | A kind of position limiting structure and assembled track for assembled track |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB962739A (en) * | 1961-08-03 | 1964-07-01 | Shell Int Research | Improved permanent way |
| AU2005327807A1 (en) * | 2005-03-26 | 2006-10-12 | Rail.One Gmbh | Method of adjusting the height of a fixed rail carriageway |
| CN1858354A (en) * | 2006-03-30 | 2006-11-08 | 中铁八局集团有限公司 | Cement asphalt mortar vertical mould type pouring method |
| CN102182120A (en) * | 2011-03-31 | 2011-09-14 | 中铁第四勘察设计院集团有限公司 | Precast slab type ballastless track structure |
| CN202610659U (en) * | 2012-03-30 | 2012-12-19 | 中铁二十三局集团轨道交通工程有限公司 | Subway turnout area plate-type ballastless track composite structure |
| CN204282140U (en) * | 2014-11-20 | 2015-04-22 | 中铁十六局集团有限公司 | A kind of self-compacting concrete perfusion gate-type crimping device |
| CN105133439B (en) * | 2015-09-30 | 2017-05-31 | 成都市新筑路桥机械股份有限公司 | A kind of embedded ballastless track system for afforesting section |
| CN105421159A (en) * | 2015-12-22 | 2016-03-23 | 中铁二院工程集团有限责任公司 | Plate type ballastless track |
-
2016
- 2016-04-21 CN CN201610249434.4A patent/CN105714619B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105714619A (en) | 2016-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105714619B (en) | The construction method of plate-type ballastless ballast bed structure | |
| CN207452594U (en) | A kind of urban track traffic prestressing force slab track | |
| CN110241662B (en) | Method for reinforcing, lifting and leveling high-speed railway roadbed through uneven settlement | |
| CN106638696A (en) | Installation and construction method for anti-settling manhole cover | |
| CN106436684B (en) | Stabilization by drainage device and its application process for Deep Thick Soft Ground roadbed precompressed processing | |
| CN210134291U (en) | Broad structure of side of existing passenger dedicated line road bed | |
| CN107245912B (en) | A kind of Foam lightweight soil railway bed structure and engineering method | |
| CN103410063A (en) | Grouting lifting rapid renovating technologies for ballastless track sedimentation | |
| CN208219326U (en) | A kind of high-speed railway Karst Subgrade construction having warning function | |
| CN106760050A (en) | The attachment structure and through processing method of shear wall and after-pouring concrete frame beam | |
| CN206706826U (en) | U-shaped counterfort wall | |
| CN204266136U (en) | Stone arch bridge cover arch rib shotcrete ruggedized construction | |
| CN206529653U (en) | A kind of underground railway track construction | |
| CN105780612B (en) | A kind of prefabricated subway assembled track plate and its construction method | |
| CN102979021A (en) | Construction method for treating vehicle jump at bridge head in highway | |
| CN205329425U (en) | Frost zone area high -speed railway road bed foundation bed | |
| CN205617159U (en) | Board -like no tiny fragments of stone, coal, etc. railway roadbed structure | |
| CN109162741A (en) | The method in shield crossing piston air duct and piston air duct superstructure synchronous construction | |
| CN106758559B (en) | A kind of construction method of high-speed railway silt, flour sand embankment structure | |
| CN207552833U (en) | A kind of elevated bridge basal perimeter ground road structure | |
| CN104005311B (en) | The construction method in gap and the gap fill structure of works is filled between works | |
| CN206233405U (en) | The attachment structure of shear wall and after-pouring concrete frame beam | |
| CN207567570U (en) | A kind of Foam lightweight soil railway bed transition section structure | |
| CN108570888A (en) | It is a kind of to weaken the length mini pile construction and construction method that expansive soil foundation swells | |
| CN101672182B (en) | Method for leading shield to pass through underground structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |