CN105821725A - Intra-segment limit structure for bearing-trail beams at double-line section of middle-low speed magnetic levitation traffic engineering low-laying line - Google Patents
Intra-segment limit structure for bearing-trail beams at double-line section of middle-low speed magnetic levitation traffic engineering low-laying line Download PDFInfo
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- CN105821725A CN105821725A CN201610285197.7A CN201610285197A CN105821725A CN 105821725 A CN105821725 A CN 105821725A CN 201610285197 A CN201610285197 A CN 201610285197A CN 105821725 A CN105821725 A CN 105821725A
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- support rail
- rail beam
- slab ends
- faulting
- bearing
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/30—Tracks for magnetic suspension or levitation vehicles
- E01B25/305—Rails or supporting constructions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Railway Tracks (AREA)
Abstract
The invention discloses an intra-segment limit structure for bearing-trail beams at a double-line section of a middle-low speed magnetic levitation traffic engineering low-laying line. The limit structure comprises roadbed stuffing below the bearing-trail beams, a bedding layer under the bearing-trail beams, two adjacent bearing-trail beams, vertical dislocation-prevention lapping plates, transverse dislocation-prevention bosses and bearing-trail beam backfill stuffing. The vertical dislocation-prevention lapping plates are fixedly arranged on the roadbed stuffing below the bearing-trail beams and the lower ends of the vertical dislocation-prevention lapping plates extend into the roadbed stuffing below the bearing-trail beams. According to the invention, the dislocation-prevention reinforced concrete lapping plates are arranged between the segment positions of the bearing-trail beams, the bearing-trail beams are arranged on the same reinforced concrete dislocation-prevention bedplate with certain rigidity, and thus the problem of the uneven rail surface as the foundation below the bearing-trail beams has differential settlements is effectively avoided.
Description
Technical field
The invention belongs to that middle low speed magnetic suspension is low puts line area, put circuit two-wire location support rail beam internode position limiting structure more particularly, to middle low speed magnetic suspension traffic engineering is low.
Background technology
Middle low speed magnetic suspension track traffic belongs to a kind of novel traffic mode, and current achievement in research both domestic and external is less, and the circuit minority especially of operation is opened in the whole world.Current only middle low speed magnetic suspension railway comercial operation line-the East Hillside Line that in March, 2005, Japan's construction was opened and the middle low speed magnetic suspension railway business operating line that in June, 2014, Korea S opened.And the middle low speed magnetic suspension traffic of China only has National University of Defense technology's test wire, Green City Mountain test wire, Tangshan experiment line at present, but the formal circuit not put into effect, and all based on elevated structure, rarely seen about the low research put in terms of circuit support rail girder construction and application.
In conventional general speed wheel rail railway, circuit is big to the adaptation ability of deformation, the most loose to the settlement Control standard-required of roadbed, thus has substantial amounts of circuit to build on fill subgrade；Current non-fragment orbit high-speed railway, although the settlement after construction of roadbed under line being required very strict, many circuits are still had to build on fill subgrade, it is desirable under line, roadbed is built by structures, there is the ability of enough intensity and resistance to deformation, steady in a long-term under various natural environment.And the mode that middle low speed magnetic suspension traffic line magnetic suspension train uses " embracing rail to travel " is run, the F rail of middle low speed magnetic suspension traffic line is to be spliced by the shortest rail scene, and leave rail break joint, the requirement of the even running of magnetic suspension train F rail to be met, it is necessary for ensureing by line construction of putting low under rail, thus, magnetic suspension traffic circuit is higher to the deformation controlling standards of sub rail foundation and the requirement of ride comfort, especially for the double structure that two railway lines are parallel, the control of the deformation controlling standards of its sub rail foundation is even more important.
In order to prevent excessive temperature stress and differential settlement, traditional support rail girder construction typically uses often joint 10～30m to arrange expansion joint, under support rail beam, basis is by the earth structure of rock and soil constitution, by landform, the impact of the factors such as geological conditions, quality is the most wayward, therefore under load and various nature and various effect of natural environment, it is easily generated differential settlement, inconsistent settlement after construction is there will be unavoidably between adjacent support rails beam, support rail beam is caused to produce faulting of slab ends, thus affect the ride comfort of F rail, F rail is possibly even caused to produce faulting of slab ends, the problems such as deformation, the normal operation of levitation train will be affected time serious.
Summary of the invention
Disadvantages described above or Improvement requirement for prior art, the invention provides that middle low speed magnetic suspension traffic engineering is low puts circuit two-wire location support rail beam internode position limiting structure, construction quality is easier to control, long-time stability are more preferable, this structure should meet middle low speed magnetic suspension traffic engineering track structure to the deformation of support rail girder construction and the high request of settlement after construction, meet the requirement of the controllability of bedding long-time stability, durability and construction quality again, and economy is more preferably.
For achieving the above object, according to the present invention, provide that middle low speed magnetic suspension traffic engineering is low puts circuit two-wire location support rail beam internode position limiting structure, it is characterized in that, including two single line structures, each described single line structure all includes roadbed filling under support rail beam, support rail beam beam underlayer, two adjacent sections support rail beam, anti-vertical faulting of slab ends attachment strap, anti-horizontal faulting of slab ends boss and support rail beam backfill filler, wherein
Described anti-vertical faulting of slab ends attachment strap is fixedly installed on roadbed filling and its lower end under described support rail beam and stretches into roadbed filling under described support rail beam；
Described support rail beam beam underlayer is layed under described support rail beam on the top end face of roadbed filling；
Described two two joint support rail beams are all fixedly installed on the top end face of described support rail beam beam underlayer, and often the longitudinal of joint support rail beam extends the most along the longitudinal direction, and they relative one end are all fixedly installed on the top end face of described anti-vertical faulting of slab ends attachment strap；Often joint support rail beam all includes support rail beam lower raft and the support rail beam top beam body being fixedly installed on described support rail beam lower raft；, between two described support rail beam top beam body, there is upper expansion joint in expansion joint in the presence of between two described support rail beam lower rafts；
Described anti-horizontal faulting of slab ends boss quantity is two, and the two prevents that the horizontal faulting of slab ends boss left and right sides is arranged, each described anti-horizontal faulting of slab ends boss is all fixedly installed on the top end face of anti-vertical faulting of slab ends attachment strap, and each described anti-horizontal faulting of slab ends boss is separately positioned on the position corresponding to described lower expansion joint, one of them prevents that horizontal faulting of slab ends boss and two left sides saving described support rail beam are fixedly connected with, another prevents that horizontal faulting of slab ends boss and two right sides saving described support rail beam are fixedly connected with, to prevent two joints described support rail beam transverse shifting, left side and the right side of often saving described support rail beam are respectively provided with described support rail beam backfill filler；
Two described anti-vertical faulting of slab ends attachment straps are fixed together by reinforcing bar one-piece casting.
Preferably, described anti-between vertical faulting of slab ends attachment strap and described support rail beam, it is additionally provided with wear-resisting buffer layer.
Preferably, it is provided with expansion joint packing material at described lower expansion joint.
Preferably, the height of described anti-horizontal faulting of slab ends boss is less than the height of described support rail beam lower raft.
Preferably, the cross section of described support rail beam is "convex" shaped.
In general, by the contemplated above technical scheme of the present invention compared with prior art, it is possible to obtain following beneficial effect:
(1) the support rail beam internode position of the present invention arranges anti-faulting of slab ends armored concrete attachment strap, support rail beam is arranged on same have on the armored concrete mistake proofing platen of certain rigidity, the problem that effectively prevent the track irregularity caused because of uneven settlement of foundation under support rail beam.
(2) the support rail beam of the present invention, reinforced concrete floor, base plate underlayer and armored concrete mistake proofing platen are combined, the lateral stiffness of support rail beam can be effectively increased, the lateral stability of support rail beam can be effectively increased, left and right two joint support rail beam is made to be placed on the base plate that rigidity is identical, can effectively control the relative settlement between support rail beam, reducing the differential settlement between gauge, be also beneficial to the maintenance during operation and maintenance, measure is simple, easily construction, cost save, effective.
(3) can regarding of the present invention stablizes needs, and together, fill subgrade structure anchor under support rail beam, internode anti-faulting of slab ends attachment strap, support rail beam is increased the low stability in the large putting line construction.
Accompanying drawing explanation
Fig. 1 is the schematic cross-sectional view of the present invention；
Fig. 2 is the schematic longitudinal section of two-wire line line construction in the present invention；
Fig. 3 is the schematic top plan view of two-wire circuit structure in the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.As long as just can be mutually combined additionally, technical characteristic involved in each embodiment of invention described below does not constitutes conflict each other.
With reference to Fig. 1～Fig. 3, middle low speed magnetic suspension traffic engineering is low puts circuit two-wire location support rail beam internode position limiting structure, including two single-wire line structures, each described single-wire line structure all includes roadbed filling 9 under support rail beam, support rail beam beam underlayer 8, two adjacent sections support rail beam, anti-vertical faulting of slab ends attachment strap 1, anti-horizontal faulting of slab ends boss 2 and support rail beam backfill filler 5, wherein
Described anti-vertical faulting of slab ends attachment strap 1 is fixedly installed on roadbed filling 9 and its lower end under described support rail beam and stretches into roadbed filling 9 under described support rail beam；
Described support rail beam beam underlayer 8 is layed under described support rail beam on the top end face of roadbed filling 9；
Described two joint support rail beams are all fixedly installed on the top end face of described support rail beam beam underlayer 8, often longitudinally the extending the most along the longitudinal direction of joint support rail beam (shown in Fig. 1 for front and back to extend, Fig. 2, Fig. 3 are illustrated that left and right extends), and they relative one end are all fixedly installed on the top end face of described anti-vertical faulting of slab ends attachment strap 1；Often joint support rail beam all includes support rail beam lower raft 7 and the support rail beam top beam body 6 being fixedly installed on described support rail beam lower raft 7；, between two described support rail beam top beam body 6, there is upper expansion joint in expansion joint in the presence of between two described support rail beam lower rafts 7；
Described anti-horizontal faulting of slab ends boss 2 quantity is two, and the two prevents that horizontal faulting of slab ends boss 2 left and right sides is arranged, each described anti-horizontal faulting of slab ends boss 2 is all fixedly installed on the top end face of anti-vertical faulting of slab ends attachment strap 1, and each described anti-horizontal faulting of slab ends boss 2 is separately positioned on the position corresponding to described lower expansion joint, one of them prevents that horizontal faulting of slab ends boss 2 is fixedly connected with two left sides saving described support rail beam, another prevents that horizontal faulting of slab ends boss 2 is fixedly connected with two rear sides saving described support rail beam, to prevent two joints described support rail beam transverse shifting, the left and right sides often saving described support rail beam is respectively provided with described support rail beam backfill filler 5；
Two described anti-vertical faulting of slab ends attachment straps 1 are linked together by reinforcing bar one-piece casting.
Further, described anti-between vertical faulting of slab ends attachment strap 1 and described support rail beam, it is additionally provided with wear-resisting buffer layer 3.
Further, it is provided with expansion joint packing material 4 at described lower expansion joint.
Further, the height of described anti-horizontal faulting of slab ends boss 2 is less than the height of described support rail beam lower raft 7.
The anti-vertical faulting of slab ends attachment strap 1 of the present invention and anti-horizontal faulting of slab ends boss 2 are poured by armored concrete overall binding and form, and are positioned at two support rail beam seam crossings, are arranged between support rail beam lower raft 7 and support rail beam beam underlayer 8.Two joint support rail beam base plates are overlapped on anti-vertical faulting of slab ends attachment strap 1, and the two produces identical sedimentation and deformation due to shared attachment strap at seam crossing, thus avoids the generation of vertical faulting of slab ends sedimentation.Anti-vertical faulting of slab ends attachment strap 1 both sides arrange anti-horizontal faulting of slab ends boss 2, and after the two uses reinforcing bar binding, one-piece casting is integral, is embedded in roadbed.
This position limiting structure support rail girder construction is evenly arranged along circuit direction of advance, support rail beam uses " convex " type section steel tendon concrete structure of band base plate, the plain concrete support rail beam underlayer 8 of folder paving armored concrete net is set under support rail beam base plate, support rail beam internode arranges anti-faulting of slab ends armored concrete attachment strap, support rail beam is arranged on same and has on the concrete attachment strap of rigidity, the problem that can be prevented effectively from the track irregularity caused because of uneven settlement of foundation under support rail beam, support rail beam simultaneously, base plate, the vertically and horizontally stability that can be effectively increased structure combined by bed course and internode mistake proofing platen.
The concrete construction forming process of the present invention is as follows:
(1) smooth construction site, processes ground according to geological conditions；
(2) carry out filling and being compacted of fill subgrade structure under support rail beam, detect qualified after lay support rail beam underlayer 8 and internode anti-faulting of slab ends attachment strap；
(3) beam-and-rail underlayer 8 is entertained and after internode anti-faulting of slab ends attachment strap reaches design strength, formwork erection pours the reinforced concrete floor on bed course, during pouring, by design lay two layers polyester long filament composite polyethylene geomembrane and between base plate expansion joint filled bitumen wood wool board；
(4) after reinforced concrete floor reaches design strength, according to support rail beam size formwork erection, assembling reinforcement after-pouring concrete, concrete curing is carried out by design requirement；
(5) after each parts concrete reaches design strength, difference form removal, then backfills bedding filler in reinforced concrete floor thickness range, and outward-dipping weathering is made in backfill face.
Those skilled in the art is easy to understand; the foregoing is only presently preferred embodiments of the present invention; not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (5)
1. in, low speed magnetic suspension traffic engineering is low puts circuit two-wire location support rail beam internode position limiting structure, it is characterized in that, including two single line structures, each described single line structure all includes roadbed filling under support rail beam, support rail beam beam underlayer, two adjacent sections support rail beam, anti-vertical faulting of slab ends attachment strap, anti-horizontal faulting of slab ends boss and support rail beam backfill filler, wherein
Described anti-vertical faulting of slab ends attachment strap is fixedly installed on roadbed filling and its lower end under described support rail beam and stretches into roadbed filling under described support rail beam；
Described support rail beam beam underlayer is layed under described support rail beam on the top end face of roadbed filling；
Described two joint support rail beams are all fixedly installed on the top end face of described support rail beam beam underlayer, longitudinally extending the most along the longitudinal direction of every support rail beam, and they relative one end are all fixedly installed on the top end face of described anti-vertical faulting of slab ends attachment strap；Every support rail beam all includes support rail beam lower raft and the support rail beam top beam body being fixedly installed on described support rail beam lower raft；, between two described support rail beam top beam body, there is upper expansion joint in expansion joint in the presence of between two described support rail beam lower rafts；
Described anti-horizontal faulting of slab ends boss quantity is two, and the two prevents arranging about horizontal faulting of slab ends boss, each described anti-horizontal faulting of slab ends boss is all fixedly installed on the top end face of anti-vertical faulting of slab ends attachment strap, and each described anti-horizontal faulting of slab ends boss is separately positioned on the position corresponding to described lower expansion joint, one of them prevents that horizontal faulting of slab ends boss and two left sides saving described support rail beam are fixedly connected with, another prevents that horizontal faulting of slab ends boss and two right sides saving described support rail beam are fixedly connected with, to prevent two described support rail beam transverse shiftings, the left side of every described support rail beam and right side are respectively provided with described support rail beam backfill filler；
Two described anti-vertical faulting of slab ends attachment straps are linked together by reinforcing bar one-piece casting.
Middle low speed magnetic suspension traffic engineering the most according to claim 1 is low puts circuit two-wire location support rail beam internode position limiting structure, it is characterised in that described anti-be additionally provided with wear-resisting buffer layer between vertical faulting of slab ends attachment strap and described support rail beam.
Middle low speed magnetic suspension traffic engineering the most according to claim 1 is low puts circuit two-wire location support rail beam internode position limiting structure, it is characterised in that be provided with expansion joint packing material at described lower expansion joint.
Middle low speed magnetic suspension traffic engineering the most according to claim 1 is low puts circuit two-wire location support rail beam internode position limiting structure, it is characterised in that the height of described anti-horizontal faulting of slab ends boss is less than the height of described support rail beam lower raft.
Middle low speed magnetic suspension traffic engineering the most according to claim 1 is low puts circuit two-wire location support rail beam internode position limiting structure, it is characterised in that the cross section of described support rail beam is "convex" shaped.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610285197.7A CN105821725A (en) | 2016-04-29 | 2016-04-29 | Intra-segment limit structure for bearing-trail beams at double-line section of middle-low speed magnetic levitation traffic engineering low-laying line |
| PCT/CN2017/077460 WO2017185916A1 (en) | 2016-04-29 | 2017-03-21 | Inter-segment limiting structure for track-bearing beams on double-track section of low-set mid-to-low speed magnetic levitation transportation project line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610285197.7A CN105821725A (en) | 2016-04-29 | 2016-04-29 | Intra-segment limit structure for bearing-trail beams at double-line section of middle-low speed magnetic levitation traffic engineering low-laying line |
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| Publication Number | Publication Date |
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| CN105821725A true CN105821725A (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610285197.7A Pending CN105821725A (en) | 2016-04-29 | 2016-04-29 | Intra-segment limit structure for bearing-trail beams at double-line section of middle-low speed magnetic levitation traffic engineering low-laying line |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283945A (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 pile foundation combined type support rail girder construction |
| WO2017185916A1 (en) * | 2016-04-29 | 2017-11-02 | 中铁第四勘察设计院集团有限公司 | Inter-segment limiting structure for track-bearing beams on double-track section of low-set mid-to-low speed magnetic levitation transportation project line |
| CN108914726A (en) * | 2018-08-23 | 2018-11-30 | 中铁磁浮交通投资建设有限公司 | A kind of magnetic floating traffic is low to set structure location track girder internode limit force transfer structure |
| CN108914725A (en) * | 2018-08-23 | 2018-11-30 | 中铁磁浮交通投资建设有限公司 | A kind of magnetic floating traffic is low to set structure location track girder internode limit force transfer structure |
| CN114293410A (en) * | 2021-12-03 | 2022-04-08 | 中铁第四勘察设计院集团有限公司 | High-speed magnetic suspension traffic engineering line |
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| CN114293410A (en) * | 2021-12-03 | 2022-04-08 | 中铁第四勘察设计院集团有限公司 | High-speed magnetic suspension traffic engineering line |
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