CN204644799U - A kind of four line ballastless track roadbed pile slab structure - Google Patents

A kind of four line ballastless track roadbed pile slab structure Download PDF

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Publication number
CN204644799U
CN204644799U CN201520302434.7U CN201520302434U CN204644799U CN 204644799 U CN204644799 U CN 204644799U CN 201520302434 U CN201520302434 U CN 201520302434U CN 204644799 U CN204644799 U CN 204644799U
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Prior art keywords
ballastless track
pile
slab
subgrade
armored concrete
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CN201520302434.7U
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张华莹
王应铭
姚宏乐
秦旗
刘钰
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China Railway First Survey and Design Institute Group Ltd
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China Railway First Survey and Design Institute Group Ltd
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Abstract

The utility model relates to a kind of four line ballastless track roadbed pile slab structure.In high speed railway station, station track is numerous, and it is high that roadbed controls the depth of fill by landform and grade separation, and formation condition is poor, and non-fragment orbit requires high to post-construction settlement of subgrade.The utility model comprises embankment noumenon, longitudinally arranges many placing of reinforcements concrete pile, often arranges four, runs through embankment noumenon and be arranged at below above-ground route downwards; Reinforced concrete pile end face arranges armored concrete slab, and top has performed bottom layer of subgrade, surface layer of subgrade bed and ballastless track structure from bottom to top successively; The position of ballastless track structure corresponds to reinforced concrete pile; Armored concrete slab bottom surface is provided with concrete leveling layer.The utility model have effective control settlement, convenient construction, the optimization duration, with bridge engineering than advantages such as investment reduction, can be applicable to that embankment in high ferro station is too high, non-fragment orbit is laid in multiply road, transversary thing is intensive, changeover portion arranges frequently, be not suitable for arranging in the roadbed design of bridge engineering.

Description

A kind of four line ballastless track roadbed pile slab structure
Technical field
the utility model relates to a kind of high-speed railway subgrade foundation structure, is specifically related to a kind of four line ballastless track roadbed pile slab structure.
Background technology
In high-speed railway large-scale station, station track is more, non-fragment orbit is laid to hair line in main track and adjacent both sides, it is high that roadbed controls the depth of fill by landform and grade separation, formation condition is poor, and transversary thing is intensive in station, changeover portion is frequently arranged, and roadbed adopts complex ground treatment settlement after construction to be difficult to control, bridge is established station difficulty comparatively large, invest high.
Summary of the invention
The purpose of this utility model is to provide a kind of four line ballastless track roadbed pile slab structure, effectively can control post-construction settlement of subgrade, the reduction of erection time, investment reduction.
The technical scheme that the utility model adopts is:
A kind of four line ballastless track roadbed pile slab structure, comprise the embankment noumenon that above-ground route is arranged, it is characterized in that:
Longitudinally many placing of reinforcements concrete pile is set, often arranges four, run through embankment noumenon and be arranged at below above-ground route downwards;
Reinforced concrete pile end face arranges armored concrete slab, has performed bottom layer of subgrade, surface layer of subgrade bed and ballastless track structure successively from bottom to top above armored concrete slab;
The position of ballastless track structure corresponds to reinforced concrete pile.
Armored concrete slab bottom surface is provided with concrete leveling layer.
Longitudinal reinforcement in reinforced concrete pile stretches into armored concrete slab.
The longitudinal separation of each placing of reinforcement concrete pile is 4.5m.
Armored concrete slab longitudinal separation is provided with horizontal shrinkage joint, and the longitudinal separation at each shrinkage joint is not more than 150m.
Armored concrete slab end and bridges and culverts or transversary thing joint, the platform back of the body or headwall establish bracket, and armored concrete slab end is placed on bracket, and and arrange the wide shrinkage joint of 3cm, filled and process rubber tile in seam between abutment tail or abutment wall.
Bottom layer of subgrade end face corresponds to ballastless track structure and is divided into four parts, and the two parts at two ends, left and right have a down dip to the inside, and middle two parts are along connecing two ends and to center updip;
Surface layer of subgrade bed bottom shape is adapted to bottom layer of subgrade top surface shape.
It is domatic that bottom layer of subgrade both lateral sides end is set to outwards to have a down dip.
The utility model has the following advantages:
1, four line ballastless track roadbed pile slab structure are to bear upper load by reinforced concrete pile bearing bar concrete slab, a kind of novel foundation of road bed form of structure, effectively can control the settlement after construction of roadbed, can be widely used in the roadbed design such as railway, highway that transverse width is large, settlement Control is strict.
2, four line ballastless track roadbed pile slab structure bottoms are that bored pile penetrates features as poor geologic condition stratum, top is the armored concrete slab bearing load imbedded in roadbed filling, in length and breadth to defining a kind of brand-new continuous structure, significantly can reduce the impact that temperature Change produces armored concrete slab, effective control structure distortion and in length and breadth to differential settlement; Avoid shrinkage joint to produce stress to concentrate and the impact of knuckle on non-fragment orbit, ensure the ride comfort of the reliable and stable and rail system of subgrade construction.
3, four line ballastless track roadbed pile slab structure effectively can solve damp sink of foundation distortion and the series of problems such as compressive strain, the compressive strain of high made ground section filler.
4, four line ballastless track roadbed pile slab structure and bridge, transversary thing joint, without the need to arranging changeover portion, longitudinal rigidity is consistent.
5, four line ballastless track roadbed pile slab structure are compared with long-short-pile composite foundation, and without the need to piling prepressing, can save the duration being no less than 6 months, short-term direct economic benefit is obvious.
6, four line ballastless track roadbed pile slab structure are compared with bridge, significantly can reduce construction investment.
Accompanying drawing explanation
Fig. 1 is the utility model structure transverse face figure.
In figure, 1-reinforced concrete pile, 2-armored concrete slab, 3-embankment noumenon, 4-concrete leveling layer, 5-bottom layer of subgrade, 6-surface layer of subgrade bed, 7-ballastless track structure.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is described in detail.
The one four line ballastless track roadbed pile slab structure that the utility model relates to, comprises the embankment noumenon 3 that above-ground route is arranged, successively fills.Longitudinally arranging many placing of reinforcements concrete pile 1, is reinforced concrete bored pile, often arranges four, runs through embankment noumenon 3 and be arranged at below above-ground route downwards.Reinforced concrete pile 1 end face arranges armored concrete slab 2, forms roadbed pile slab structure, bears upper load.Bottom layer of subgrade 5, surface layer of subgrade bed 6 and ballastless track structure 7 has been performed from bottom to top successively above armored concrete slab 2.The position of ballastless track structure 7 corresponds to reinforced concrete pile 1.Armored concrete slab 2 bottom surface is provided with concrete leveling layer 4.Roadbed body 3 adopts C group and above filler; Bottom layer of subgrade 5 adopts conditioned soil or B group and above filler; Surface layer of subgrade bed 6 adopts graded broken stone water mixing mud.
Longitudinal reinforcement in reinforced concrete pile 1 stretches into armored concrete slab 2, and the longitudinal separation of each placing of reinforcement concrete pile 1 is 4.5m.Armored concrete slab 2 longitudinal separation is provided with horizontal shrinkage joint, and the longitudinal separation at each shrinkage joint is not more than 150m.Armored concrete slab 2 end and bridges and culverts or transversary thing joint, the platform back of the body or headwall establish bracket, and armored concrete slab 2 end is placed on bracket, and and arrange the wide shrinkage joint of 3cm, filled and process rubber tile in seam between abutment tail or abutment wall.
Bottom layer of subgrade 5 end face corresponds to ballastless track structure 7 and is longitudinally divided into four parts, and the two parts at two ends, left and right have a down dip to the inside (gradient is 4%), and middle two parts are along connecing two ends and to center updip (gradient is 4%); Surface layer of subgrade bed 6 bottom shape is adapted to bottom layer of subgrade 5 top surface shape.Bottom layer of subgrade 5 both lateral sides end is set to domatic (gradient is 1:1.5) that outwards have a down dip.
Content of the present utility model is not limited to cited by embodiment, and the conversion of those of ordinary skill in the art by reading the utility model manual to any equivalence that technical solutions of the utility model are taked, is claim of the present utility model and contains.

Claims (8)

1. four line ballastless track roadbed pile slab structure, comprise the embankment noumenon (3) that above-ground route is arranged, it is characterized in that:
Longitudinally many placing of reinforcements concrete pile (1) is set, often arranges four, run through embankment noumenon (3) and be arranged at below above-ground route downwards;
Reinforced concrete pile (1) end face arranges armored concrete slab (2), and armored concrete slab (2) top has performed bottom layer of subgrade (5), surface layer of subgrade bed (6) and ballastless track structure (7) from bottom to top successively;
The position of ballastless track structure (7) corresponds to reinforced concrete pile (1).
2. a kind of four line ballastless track roadbed pile slab structure according to claim 1, is characterized in that:
Armored concrete slab (2) bottom surface is provided with concrete leveling layer (4).
3. a kind of four line ballastless track roadbed pile slab structure according to claim 2, is characterized in that:
Longitudinal reinforcement in reinforced concrete pile (1) stretches into armored concrete slab (2).
4. a kind of four line ballastless track roadbed pile slab structure according to claim 3, is characterized in that:
The longitudinal separation of each placing of reinforcement concrete pile (1) is 4.5m.
5. a kind of four line ballastless track roadbed pile slab structure according to claim 4, is characterized in that:
Armored concrete slab (2) longitudinal separation is provided with horizontal shrinkage joint, and the longitudinal separation at each shrinkage joint is not more than 150m.
6. a kind of four line ballastless track roadbed pile slab structure according to claim 5, is characterized in that:
Armored concrete slab (2) end and bridges and culverts or transversary thing joint, the platform back of the body or headwall establish bracket, and armored concrete slab (2) end is placed on bracket, and and arrange the wide shrinkage joint of 3cm, filled and process rubber tile in seam between abutment tail or abutment wall.
7. a kind of four line ballastless track roadbed pile slab structure according to claim 6, is characterized in that:
Bottom layer of subgrade (5) end face corresponds to ballastless track structure (7) and is divided into four parts, and the two parts at two ends, left and right have a down dip to the inside, and middle two parts are along connecing two ends and to center updip;
Surface layer of subgrade bed (6) bottom shape is adapted to bottom layer of subgrade (5) top surface shape.
8. a kind of four line ballastless track roadbed pile slab structure according to claim 7, is characterized in that:
It is domatic that bottom layer of subgrade (5) both lateral sides end is set to outwards to have a down dip.
CN201520302434.7U 2015-05-12 2015-05-12 A kind of four line ballastless track roadbed pile slab structure Active CN204644799U (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105544311A (en) * 2016-01-17 2016-05-04 中铁二院工程集团有限责任公司 Water-rich foundation frost-heaving-resistant ballastless track embankment structure
CN105672075A (en) * 2016-01-17 2016-06-15 中铁二院工程集团有限责任公司 Water-rich through cut and low-embankment ballastless track roadbed structure in seasonal frozen soil region
CN105821764A (en) * 2016-05-12 2016-08-03 中南大学 Ballastless track rigidity adjusting device
CN106283956A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev two-wire excavation location pile foundation combined type support rail beam transition section structure
CN106283966A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev single line embankment location detached pier pillar support rail beam transition section structure
CN106283968A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev two-wire embankment location pile foundation is combined framing type support rail girder construction
CN106283969A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev traffic engineering two-wire excavation location detached pier pillar support rail girder construction
CN106283957A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev two-wire excavation location pile foundation joist framing type support rail beam transition section structure
CN106283973A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev traffic engineering two-wire excavation location detached pier pillar support rail beam transition section structure
CN106283972A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev traffic engineering single line embankment location pile foundation combined type support rail girder construction
WO2017125028A1 (en) * 2016-01-21 2017-07-27 中铁第四勘察设计院集团有限公司 Rail support beam low track and viaduct transition section structure for medium-low-speed magnetic suspension traffic project
CN106988165A (en) * 2017-04-10 2017-07-28 中铁二院工程集团有限责任公司 A kind of track linear control method for multi-thread high-speed railway bridge
CN107142839A (en) * 2017-07-05 2017-09-08 安徽省交通规划设计研究总院股份有限公司 A kind of attachment means of pile slab structure floorings and roadbed
CN107841908A (en) * 2017-11-30 2018-03-27 中铁第四勘察设计院集团有限公司 For eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105544311A (en) * 2016-01-17 2016-05-04 中铁二院工程集团有限责任公司 Water-rich foundation frost-heaving-resistant ballastless track embankment structure
CN105672075A (en) * 2016-01-17 2016-06-15 中铁二院工程集团有限责任公司 Water-rich through cut and low-embankment ballastless track roadbed structure in seasonal frozen soil region
WO2017125028A1 (en) * 2016-01-21 2017-07-27 中铁第四勘察设计院集团有限公司 Rail support beam low track and viaduct transition section structure for medium-low-speed magnetic suspension traffic project
CN105821764A (en) * 2016-05-12 2016-08-03 中南大学 Ballastless track rigidity adjusting device
CN106283973A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev traffic engineering two-wire excavation location detached pier pillar support rail beam transition section structure
CN106283968B (en) * 2016-09-15 2017-10-31 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev two-wire embankment location pile foundation is combined framing type support rail girder construction
CN106283969A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev traffic engineering two-wire excavation location detached pier pillar support rail girder construction
CN106283957A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev two-wire excavation location pile foundation joist framing type support rail beam transition section structure
CN106283966A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev single line embankment location detached pier pillar support rail beam transition section structure
CN106283972A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev traffic engineering single line embankment location pile foundation combined type support rail girder construction
CN106283956A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev two-wire excavation location pile foundation combined type support rail beam transition section structure
CN106283966B (en) * 2016-09-15 2018-01-02 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev single line embankment location independence pier stud type support rail beam transition section structure
CN106283968A (en) * 2016-09-15 2017-01-04 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev two-wire embankment location pile foundation is combined framing type support rail girder construction
CN106283972B (en) * 2016-09-15 2017-10-31 中铁第四勘察设计院集团有限公司 Medium-and low-speed maglev traffic engineering single line embankment location pile foundation combined type support rail girder construction
CN106988165A (en) * 2017-04-10 2017-07-28 中铁二院工程集团有限责任公司 A kind of track linear control method for multi-thread high-speed railway bridge
CN106988165B (en) * 2017-04-10 2018-10-19 中铁二院工程集团有限责任公司 A kind of track linear control method for multi-thread high-speed railway bridge
CN107142839A (en) * 2017-07-05 2017-09-08 安徽省交通规划设计研究总院股份有限公司 A kind of attachment means of pile slab structure floorings and roadbed
CN107841908A (en) * 2017-11-30 2018-03-27 中铁第四勘察设计院集团有限公司 For eliminating the road structure of the high embankment lateral variation sedimentation in high-speed railway abrupt slope

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