CN105672075A - Water-rich through cut and low-embankment ballastless track roadbed structure in seasonal frozen soil region - Google Patents
Water-rich through cut and low-embankment ballastless track roadbed structure in seasonal frozen soil region Download PDFInfo
- Publication number
- CN105672075A CN105672075A CN201610029741.1A CN201610029741A CN105672075A CN 105672075 A CN105672075 A CN 105672075A CN 201610029741 A CN201610029741 A CN 201610029741A CN 105672075 A CN105672075 A CN 105672075A
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- concrete
- roadbed
- ballastless track
- embankment
- rich water
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
Abstract
The invention provides a water-rich through cut and low-embankment ballastless track roadbed structure in a seasonal frozen soil region. By the adoption of the water-rich through cut and low-embankment ballastless track roadbed structure in the seasonal frozen soil region, the frost heaving preventing effect of a ballastless track high-speed railway can be effectively improved, and construction is convenient. The water-rich through cut and low-embankment ballastless track roadbed structure in the seasonal frozen soil region comprises a concrete tank-shaped body, expansion joint materials, a light filling body, a graded broken stone filling body, a reinforced concrete supporting layer, track boards, roadbed surface layers, cable troughs, protective shoulders and drainage ditches, wherein the concrete tank-shaped body is arranged in a water-rich foundation in a segmented mode in the extension direction of a path; each expansion joint material is bonded between the two corresponding segments of the concrete tank-shaped body; the lower portion of an internal cavity of the concrete tank-shaped body is filled with the light filling body; the upper portion of the internal cavity of the concrete tank-shaped body is filled with the graded broken stone filling body; the reinforced concrete supporting layer is arranged at the top of the concrete tank-shaped body and the top of the graded broken stone filling body and is in rigid connection with the concrete tank-shaped body; the track boards are arranged at the top of the concrete supporting layer; the roadbed surface layers are arranged on the portions, on the two sides of the track boards, of the foundation; the cable troughs are formed in the protective shoulders on the two sides of the roadbed surface layers; the protective shoulders are arranged on the outer sides of the cable trough; and the drainage ditches are formed in the two sides of a roadbed.
Description
Technical field
The present invention relates to Geotechnical Engineering, particularly to frozen ground regions rich water cutting and low embankment non-fragment orbit railway anti-freeze expansion engineering.
Background technology
When high-speed railway particularly non-fragment orbit high-speed railway subgrade is built when frozen ground regions, must adopt an effective measure and avoid ballastless track roadbed that excessive frost heave differential settlement change occurs, generally way is that the surface layer of subgrade bed waterproof and drain measure strengthening ballastless track roadbed is for solving the problem of frost heave that surface water seapage causes at present, when building engineering and passing through water abundant ground with cutting and low embankment form, the frost heave that frost heave depth bounds subsoil water occurs will be very notable, if subsoil water has drainage condition, subsoil water problem of frost heave can be solved by arranging subdrainage the region between the heart and the diaphragm ditch lowering of watertable height, but when there is no ground water drainage condition, such as China's Northeast plain area, Russia builds non-fragment orbit high-speed railway in Ka Shan-area, Moscow and encounters problems and be difficult to solve. therefore urgently need a kind of frozen ground regions rich water cutting and low embankment ballastless track roadbed structure to solve Problems existing, need that there is the features such as economy, environmental protection and easy construction simultaneously.
Summary of the invention
The technical problem to be solved is to provide a kind of frozen ground regions rich water cutting and low embankment ballastless track roadbed structure, to be effectively improved non-fragment orbit high-speed railway frost heaving resistant effect, and easy construction.
The technical solution adopted for the present invention to solve the technical problems is as follows:
The frozen ground regions rich water cutting of the present invention and low embankment ballastless track roadbed structure, is characterized in that it includes: concrete pit body, is arranged in rich water ground along circuit bearing of trend merogenesis; Expanded joint material, is bonded between two adjacent sections concrete pit body; Light-duty filling body, fills the bottom at concrete pit body internal cavities; Graded broken stone filling technology body, fills the top at concrete pit body internal cavities; Reinforced concrete support layer, is arranged on concrete pit body and graded broken stone filling technology body top, and is rigidly connected with concrete pit body;Track plates, is arranged on reinforced concrete support layer top; Roadbed top layer, is arranged on the ground of track plates both sides; Cable trough, is arranged on the curb of both sides, roadbed top layer; Shoulder protector, is arranged on outside cable trough; Gutter, is arranged on roadbed both sides.
The invention has the beneficial effects as follows, it is possible to effectively solve draining difficulty region of FuShui cutting and low embankment non-fragment orbit high-speed railway subgrade seasonality problem of frost heave, have that frost heaving resistant is effective, easy construction, economic dispatch feature, there is wide popularizing application prospect.
Accompanying drawing explanation
This specification includes following two width accompanying drawings:
Fig. 1 is frozen ground regions of the present invention rich water cutting and the sectional schematic diagram of low embankment ballastless track roadbed structure.
Fig. 2 is the concrete pit body floor map of frozen ground regions of the present invention rich water cutting and low embankment ballastless track roadbed structure.
Component name shown in figure and corresponding labelling: concrete pit body 1, expanded joint material 2, light-duty filling body 3, graded broken stone filling technology body 4, reinforced concrete support layer 5, track plates 6, roadbed top layer 7, cable trough 8, shoulder protector 9, gutter 10, phreatic line A, depth of freezing line B.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
With reference to Fig. 1 and Fig. 2, frozen ground regions rich water cutting and the low embankment ballastless track roadbed structure of the present invention include: concrete pit body 1, are arranged in rich water ground along circuit bearing of trend merogenesis; Expanded joint material 2, is bonded between two adjacent sections concrete pit body 1; Light-duty filling body 3, fills the bottom at concrete pit body 1 internal cavities; Graded broken stone filling technology body 4, fills the top at concrete pit body 1 internal cavities; Reinforced concrete support layer 5, is arranged on concrete pit body 1 and graded broken stone filling technology body 4 top, and is rigidly connected with concrete pit body 1; Track plates 6, is arranged on reinforced concrete support layer 5 top; Roadbed top layer 7, is arranged on the ground of track plates 6 both sides, meets width of the subgrade surface requirement; Cable trough 8, is arranged on the curb of both sides, roadbed top layer 7; Shoulder protector 9, is arranged on outside cable trough 8; Gutter 10, is arranged on roadbed both sides.
With reference to Fig. 1 and Fig. 2, utilize concrete pit body 1 as the support force structure thing of stop water thing and track plates 6, concrete pit body 1 is imbedded the depth of freezing below line B and structure has resistance effect, thus frost heave action all will not be there is in concrete pit body 1 self and the following soil layer of structure, being subject to frost heave impact in being that of avoiding upper track plate 6, concrete pit body 1 has sufficient intensity for supporting the load of upper rail guidance tape 6 and train simultaneously. Utilize expanded joint material 2 as the buffering expansion joint between two concrete pit bodies 1. Concrete pit body 1 fills light-duty filling body 3 and graded broken stone filling technology body 4, thus reducing the concrete amount of concrete pit body 1, by adjusting the Vertical Settlement that ground is produced by the filling-up thickness of light-duty filling body 3 and graded broken stone filling technology body 4 with the own wt reducing this anti-freeze expansion structure, avoid this anti-freeze expansion structure to produce buoyancy deformation under the effect of subsoil water simultaneously. Light-duty filling body 3 can adopt the lightweight materials such as foam concrete, flyash, blast-furnace cinder, can effectively alleviate own wt, and top graded broken stone filling body 4 is played a supportive role; Graded broken stone filling technology body 4 is used as structure weight and has good compactibility, can provide support force for upper reinforcement concrete support layer 5, and provide operation platform for it.Reinforced concrete support layer 5 provides support force for track plates 6; Track plates 6 is train rail works; Roadbed top layer 7 is as non-track plates 6 force structure, for meeting the setting of the requirement of high-speed railway boundary and cable trough 8 and shoulder protector 9, it is generally adopted graded broken stone filling technology, it can deform under frost heave action, but it is without influence on the deformation of track plates 6, avoid full roadbed section to adopt concreter to close, thus saving construction investment simultaneously; Cable trough 8 is used for placing railway relevant cables engineering; Shoulder protector 9 is used for fixing cable trough 8, and ensures that width of subgrade meets requirement. Gutter 10 is used for discharging surface water, it is to avoid hydrops affects railway operation safety.
This structure can effectively solve draining difficulty region of FuShui cutting and the low embankment non-fragment orbit high-speed railway subgrade significant problem of seasonality frost heave, have that frost heaving resistant is effective, easy construction, economic dispatch feature, there is wide popularizing application prospect.
With reference to Fig. 1, described concrete pit body 1 wall body section thickness is typically no less than 0.4m, and concrete strength is typically no less than C30, can require to be coated with waterproof layer on internal cavities wall body according to its seepage of water. Described light-duty filling body 3, graded broken stone filling technology body 4 need placement in layers compacting. Reinforced concrete support layer 5 thickness meets force request, is typically no less than 0.5m. Described roadbed top layer 7 adopts graded broken stone filling technology, and thickness is not less than 0.4m. Described reinforced concrete support layer 5 and concrete pit body 1 are fixedly connected by reinforcing bar. With reference to Fig. 2, described concrete pit body 1 arranges one expansion joint every 15-30m, adopts the expanded joint material 2 of flexible water to bond between seam.
Some principles of the above simply explain through diagrams frozen ground regions of the present invention rich water cutting and low embankment ballastless track roadbed structure, it is not intended to the present invention be confined in shown and described concrete structure and the scope of application, therefore every corresponding amendment being likely utilized and equivalent, belong to the scope of the claims that the present invention applies for.
Claims (7)
1. frozen ground regions rich water cutting and low embankment ballastless track roadbed structure, is characterized in that it includes: concrete pit body (1), is arranged in rich water ground along circuit bearing of trend merogenesis; Expanded joint material (2), is bonded between two adjacent sections concrete pit body (1); Light-duty filling body (3), fills the bottom at concrete pit body (1) internal cavities; Graded broken stone filling technology body (4), fills the top at concrete pit body (1) internal cavities; Reinforced concrete support layer (5), is arranged on concrete pit body (1) and graded broken stone filling technology body (4) top, and is rigidly connected with concrete pit body (1); Track plates (6), is arranged on reinforced concrete support layer (5) top; Roadbed top layer (7), is arranged on the ground of track plates (6) both sides; Cable trough (8), is arranged on the curb of roadbed top layer (7) both sides; Shoulder protector (9), is arranged on cable trough (8) outside; Gutter (10), is arranged on roadbed both sides.
2. frozen ground regions rich water cutting as claimed in claim 1 and low embankment ballastless track roadbed structure, it is characterized in that: the wall body section thickness of described concrete pit body (1) is not less than 0.4m, concrete strength is not less than C30, is coated with waterproof layer on internal cavities wall body.
3. frozen ground regions rich water cutting as claimed in claim 1 and low embankment ballastless track roadbed structure, is characterized in that: described light-duty filling body (3), graded broken stone filling technology body (4) placement in layers compacting in concrete pit body (1) internal cavities.
4. frozen ground regions rich water cutting as claimed in claim 1 and low embankment ballastless track roadbed structure, is characterized in that: the thickness of described reinforced concrete support layer (5) is not less than 0.5m.
5. frozen ground regions rich water cutting as claimed in claim 1 and low embankment ballastless track roadbed structure, is characterized in that: described roadbed top layer (7) adopts graded broken stone filling technology, and thickness is not less than 0.4m.
6. frozen ground regions rich water cutting as claimed in claim 1 and low embankment ballastless track roadbed structure, is characterized in that: described reinforced concrete support layer (5) is fixedly connected by reinforcing bar with concrete pit body (1).
7. frozen ground regions rich water cutting as claimed in claim 2 and low embankment ballastless track roadbed structure, it is characterized in that: described concrete pit body (1) arranges one expansion joint every 15-30m, between seam, adopt flexible water expanded joint material (2) bonding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610029741.1A CN105672075A (en) | 2016-01-17 | 2016-01-17 | Water-rich through cut and low-embankment ballastless track roadbed structure in seasonal frozen soil region |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610029741.1A CN105672075A (en) | 2016-01-17 | 2016-01-17 | Water-rich through cut and low-embankment ballastless track roadbed structure in seasonal frozen soil region |
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| CN105672075A true CN105672075A (en) | 2016-06-15 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442623A (en) * | 2016-11-25 | 2017-02-22 | 东北林业大学 | Horizontal frost heaving device |
| CN106702823A (en) * | 2016-12-21 | 2017-05-24 | 中铁二院工程集团有限责任公司 | High-speed rail lattice-type embankment structure and construction method thereof |
| CN107190658A (en) * | 2017-07-27 | 2017-09-22 | 四川睿铁科技有限责任公司 | A kind of free frame pin-connected panel railway Evacuation platform of steel |
| CN107893346A (en) * | 2017-10-16 | 2018-04-10 | 广州地铁设计研究院有限公司 | A kind of railroad car road structure |
| CN107938438A (en) * | 2017-12-01 | 2018-04-20 | 中铁二院工程集团有限责任公司 | High-speed railway box road structure and construction method |
| CN108118564A (en) * | 2017-12-01 | 2018-06-05 | 中铁二院工程集团有限责任公司 | A kind of pressure type box High Speed Railway Subgrade and construction method |
| CN108755284A (en) * | 2018-06-15 | 2018-11-06 | 中铁西安勘察设计研究院有限责任公司 | Reduce the railway bed structure of subgrade settlement deformation to lacing wire material U-type groove |
| CN109235155A (en) * | 2018-09-17 | 2019-01-18 | 中铁二院工程集团有限责任公司 | Railway high-filled embankment ancient cooking vessel formula structure |
| CN109235153A (en) * | 2018-09-17 | 2019-01-18 | 中铁二院工程集团有限责任公司 | The anti-counterfort U-type groove structure of railway high-filled embankment |
| CN109972470A (en) * | 2019-04-10 | 2019-07-05 | 四川省交通勘察设计研究院有限公司 | A kind of assembled subgrade construction system and technique suitable for deep soft foundation |
| CN110055826A (en) * | 2019-04-28 | 2019-07-26 | 中铁二院工程集团有限责任公司 | A kind of enhanced ballast bed structure of cutting cogwheel railway and construction method |
| CN110055827A (en) * | 2019-04-28 | 2019-07-26 | 中铁二院工程集团有限责任公司 | A kind of cutting heavy grade cogwheel railway structure and construction method |
| CN113279290A (en) * | 2021-07-22 | 2021-08-20 | 中国土木工程集团有限公司 | Waterproof roadbed structure for railways in coastal high-water-level areas and construction method of waterproof roadbed structure |
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| CN204644799U (en) * | 2015-05-12 | 2015-09-16 | 中铁第一勘察设计院集团有限公司 | A kind of four line ballastless track roadbed pile slab structure |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442623A (en) * | 2016-11-25 | 2017-02-22 | 东北林业大学 | Horizontal frost heaving device |
| CN106702823B (en) * | 2016-12-21 | 2019-05-21 | 中铁二院工程集团有限责任公司 | A kind of high-speed railway lattice embankment structure and construction method |
| CN106702823A (en) * | 2016-12-21 | 2017-05-24 | 中铁二院工程集团有限责任公司 | High-speed rail lattice-type embankment structure and construction method thereof |
| CN107190658A (en) * | 2017-07-27 | 2017-09-22 | 四川睿铁科技有限责任公司 | A kind of free frame pin-connected panel railway Evacuation platform of steel |
| CN107893346A (en) * | 2017-10-16 | 2018-04-10 | 广州地铁设计研究院有限公司 | A kind of railroad car road structure |
| CN107938438A (en) * | 2017-12-01 | 2018-04-20 | 中铁二院工程集团有限责任公司 | High-speed railway box road structure and construction method |
| CN108118564A (en) * | 2017-12-01 | 2018-06-05 | 中铁二院工程集团有限责任公司 | A kind of pressure type box High Speed Railway Subgrade and construction method |
| CN108118564B (en) * | 2017-12-01 | 2023-09-22 | 中铁二院工程集团有限责任公司 | Pressure type box type high-speed railway roadbed structure and construction method |
| CN108755284A (en) * | 2018-06-15 | 2018-11-06 | 中铁西安勘察设计研究院有限责任公司 | Reduce the railway bed structure of subgrade settlement deformation to lacing wire material U-type groove |
| CN109235153A (en) * | 2018-09-17 | 2019-01-18 | 中铁二院工程集团有限责任公司 | The anti-counterfort U-type groove structure of railway high-filled embankment |
| CN109235155A (en) * | 2018-09-17 | 2019-01-18 | 中铁二院工程集团有限责任公司 | Railway high-filled embankment ancient cooking vessel formula structure |
| CN109235155B (en) * | 2018-09-17 | 2024-01-05 | 中铁二院工程集团有限责任公司 | Tripod structure of railway high-filling embankment |
| CN109972470A (en) * | 2019-04-10 | 2019-07-05 | 四川省交通勘察设计研究院有限公司 | A kind of assembled subgrade construction system and technique suitable for deep soft foundation |
| CN110055826A (en) * | 2019-04-28 | 2019-07-26 | 中铁二院工程集团有限责任公司 | A kind of enhanced ballast bed structure of cutting cogwheel railway and construction method |
| CN110055827A (en) * | 2019-04-28 | 2019-07-26 | 中铁二院工程集团有限责任公司 | A kind of cutting heavy grade cogwheel railway structure and construction method |
| CN110055826B (en) * | 2019-04-28 | 2023-09-22 | 中铁二院工程集团有限责任公司 | Construction method of cutting rack rail reinforced track bed structure |
| CN110055827B (en) * | 2019-04-28 | 2023-09-22 | 中铁二院工程集团有限责任公司 | Construction method of cutting large-gradient toothed rail railway structure |
| CN113279290A (en) * | 2021-07-22 | 2021-08-20 | 中国土木工程集团有限公司 | Waterproof roadbed structure for railways in coastal high-water-level areas and construction method of waterproof roadbed structure |
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Application publication date: 20160615 |