CN106283948A - Medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation joist type support rail girder construction - Google Patents
Medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation joist type support rail girder construction Download PDFInfo
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- CN106283948A CN106283948A CN201610825061.0A CN201610825061A CN106283948A CN 106283948 A CN106283948 A CN 106283948A CN 201610825061 A CN201610825061 A CN 201610825061A CN 106283948 A CN106283948 A CN 106283948A
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- support rail
- rail beam
- pile foundation
- base plate
- reinforced concrete
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Classifications
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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
- E01B2/00—General structure of permanent way
- E01B2/006—Deep foundation of tracks
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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
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
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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
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/008—Drainage of track
-
- 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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/34—Foundations for sinking or earthquake territories
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/07—Drainage
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/08—Deep or vertical foundation
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/09—Ballastless systems
Abstract
The invention belongs to that middle low speed magnetic suspension traffic engineering is low puts Line technology field, and disclose medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation joist type support rail girder construction, including roadbed filling under pile foundation carrying structure, reinforced concrete supporting beam, armored concrete support rail beam base plate, two placing of reinforcement concrete beam-type structures, support rail beam and support rail beam both sides backfill filler, pile foundation carrying structure is provided with many；Described reinforced concrete beam type structure is accepted at the top of armored concrete support rail beam base plate；Support rail beam both sides backfill filler is accepted by roadbed filling under described support rail beam.The present invention can avoid the low defect putting circuit support rail girder construction of tradition, long-time stability are more preferable, and support rail girder construction is deformed and the high request of settlement after construction by low speed magnetic suspension traffic engineering track structure during it both meets, meet again the requirement of the controllability of bedding long-time stability, durability and construction quality, and economy is more preferably.
Description
Technical field
The invention belongs to that middle low speed magnetic suspension traffic engineering is low puts Line technology field, more particularly, to middle low speed magnetic
Floating traffic engineering two-wire embankment location support rail girder construction pattern.
Background technology
Middle low speed magnetic suspension track traffic belongs to a kind of novel traffic mode, and achievement in research both domestic and external is less, the whole world
Open the circuit minority especially of operation.The middle low speed magnetic suspension railway business fortune that the most only in March, 2005, Japan's construction was opened
The middle low speed magnetic suspension railway business operating line that line-the East Hillside Line and in June, 2014, Korea S opened.And the middle low speed of China
Magnetic suspension traffic only National University of Defense technology's test wire, Green City Mountain test wire, Tangshan experiment line at present, but do not put into effect
Formal circuit, and all based on elevated structure, rarely seen about the low research put in terms of circuit support rail girder construction and application.
Middle low speed magnetic suspension hangs traffic civil engineering part and mainly comprises bridge, low circuit, station and the rolling stock section of putting, and low puts circuit
Being made up of with roadbed under support rail beam the section of track, support rail beam, the support rail beam of supporting track is arranged on the roadbed being made up of earth structure
On, the operation of middle low speed magnetic suspension train includes suspending, guide, drive and brake and is required for completing on support rail beam.Magnetic
Aerotrain is the highest to line construction deformation requirements, because the least the deforming it is possible to affect comfortableness even prestige by bus of structure
Side of body traffic safety, so the design of support rail beam is particularly significant.
Existing support rail girder construction is applied and be there is problems in that on circuit middle low speed magnetic suspension traffic low putting
(1) existing low circuit support rail girder construction of putting is arranged on embankment earth structure, embankment earth structure by
Filler fills compacting and forms, and compaction quality is wayward, and the later stage is susceptible to deformation, affects the integral rigidity of structure, and after work
Sedimentation is difficult to control to.
(2) low circuit support rail girder construction of putting requires height to the settlement after construction of roadbed and ground, and is routed through the ground in region
Matter condition is typically all complicated and changeable, therefore also needs to ground be carried out consolidation process simultaneously, and roadbed filling puts slope groundwork
Reinforcing area increases, and cost is high, long in time limit；And basement process belongs to disguised engineering, conventional reinforced soft soil ground is used to arrange
Executing and reinforce, construction quality is wayward.
(3) owing to filler fills the low circuit earth structure of putting being compacted, there is vulnerability, and construction quality is difficult to
Control, relatively easily produce differential settlement, cause bedding vertical and horizontal bad stability under support rail beam, so that support rail beam
The stability in the large of structure is impaired.
Magnetic suspension is low, and to put circuit support rail beam higher to post-construction settlement of subgrade, bedding long-time stability and life requirement, when
When circuit is positioned at foundation stabilization location, taking traditional support rail girder construction pattern to there is the construction period long, construction quality is the most easily-controllable
The defects such as system, whole structural stability are poor and less economical.
Summary of the invention
For disadvantages described above or the Improvement requirement of prior art, the invention provides medium-and low-speed maglev traffic engineering two-wire and fill out
Side's location pile foundation joist type support rail girder construction, can avoid the low defect putting circuit support rail girder construction of tradition, and construction quality is easier to
During controlling, long-time stability are more preferable, and it both meets, support rail girder construction is deformed by low speed magnetic suspension traffic engineering track structure
With the high request of settlement after construction, meet again the requirement of the controllability of bedding long-time stability, durability and construction quality, and economical
Property is more preferably.
For achieving the above object, it is proposed, according to the invention, provide medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation torr
Beam type support rail girder construction, it is characterised in that include at the bottom of pile foundation carrying structure, reinforced concrete supporting beam, armored concrete support rail beam
Roadbed filling and support rail beam both sides backfill filler under plate, two placing of reinforcement concrete beam-type structures, support rail beam, wherein,
Described pile foundation carrying structure is provided with many, and every described pile foundation carrying structure is all vertically arranged, and every institute
Described reinforced concrete supporting beam is all accepted on the top stating pile foundation carrying structure；
Described reinforced concrete supporting beam accepts described armored concrete support rail beam base plate；
Described reinforced concrete beam type structure is accepted on the top of described armored concrete support rail beam base plate；
The top of described pile foundation carrying structure embeds described reinforced concrete supporting beam and just connects with it, described armored concrete torr
Beam has just connect with described armored concrete support rail beam base plate or has overlapped, described armored concrete support rail beam base plate and described reinforced concrete
Soil girder structure is one-body molded thus collectively forms armored concrete support rail beam；
It is provided with on described reinforced concrete supporting beam for limiting described armored concrete support rail beam base plate lateral displacement
Convex gear platform；
Arranging wired weathering section described in two rows between reinforced concrete beam type structure, between described line, weathering section has
Cross fall and head fall, for current are introduced two adjacent sections armored concrete support rail beam base plate internode expansion joint and then
Current are discharged；
Under described support rail beam, roadbed filling is arranged between shallow layer reinforcement district and described armored concrete support rail beam base plate, with
For providing construction flat for described armored concrete support rail beam base plate, reinforced concrete supporting beam and support rail beam both sides backfill filler
Platform, and provide lateral support for described pile foundation carrying structure；Wherein, described shallow layer reinforcement district is arranged on the shallow table of soft stratum
Layer, and roadbed filling and the vertical consistency of described reinforced concrete beam type structure under described shallow layer reinforcement district, described support rail beam；
Described support rail beam both sides backfill filler is accepted by roadbed filling under described support rail beam, and described support rail beam both sides
Backfill filler props up the both sides of described armored concrete support rail beam base plate, so that described armored concrete support rail beam base plate is risen protection
Act on and retrain the transverse shifting of described armored concrete support rail beam base plate, and maintenance passage is provided；
Under described support rail beam roadbed filling and described support rail beam both sides backfill filler collectively form filler filling body, described in fill out
Material filling body both sides are provided with weathering；
The lower end of every described pile foundation carrying structure sequentially passes through roadbed filling under described support rail beam, described shallow layer reinforcement district
Stretching in supporting course with after described soft stratum, with when soft stratum produces sedimentation, described pile foundation carrying structure can be born negative
Frictional resistance, thus provide stable bearing capacity to armored concrete support rail beam base plate and reinforced concrete beam type structure, to reduce
The adverse effect vertical, the vertical and horizontal rigidity of armored concrete support rail beam produced because of the sedimentation of filler filling body.
Preferably, described pile foundation carrying structure is cast-in-situ bored pile, reinforced concrete supporting beam and support rail beam base plate just connect or
Overlap joint, just connects with pile foundation carrying structure.Using pin overlap joint in the position of support rail beam internode seam, remaining position uses and just connects.
Preferably, described support rail beam side backfills the height of filler and the height phase of described armored concrete support rail beam base plate
Deng.
Preferably, pile foundation carrying structure described in all these is ranks arrangements.
Preferably, between described line, the cross fall of weathering section is 3%～5%, and head fall is not less than 2 ‰.
In general, by the contemplated above technical scheme of the present invention compared with prior art, it is possible to show under acquirement
Benefit effect:
(1) the armored concrete support rail beam base plate of the present invention, reinforced concrete beam type structure all use armored concrete existing
Field one-piece casting, the two composition integral reinforced concrete structure is in order to directly take on track load and the magnetic-levitation train of track transmission
Load, then deadweight and upper load are passed to pile foundation rigidly connected with it carrying structure, structural reliability is high.
(2) the pile foundation carrying structure of the present invention is goed deep in supporting course, and embankment produces when necessarily settling, and pile foundation carrying structure depends on
So can bear negative friction and stronger bearing capacity is provided, it is to avoid because of filling compaction with foundation stabilization quality is wayward causes
Differential settlement is vertical on support rail beam, the impact of vertical and horizontal rigidity, structure vertical cross stiffness and structural reliability are more excellent.
(3) put circuit soft soil zone low, according to embankment stability need the shallow top layer of soft stratum is carried out necessity
Reinforcing, its reinforcement depth is by embankment stability control, compared to by settling and stablizing tradition when Two indices controls solely
For base reinforcing mode, shallow layer reinforcement district reinforcement depth is little, can effectively control roadbed reclamation and roadbed in conjunction with pile foundation carrying structure
Settlement after construction.Non-soft soil zone more can avoid embankment to put the stiffening basic ground of the wide area produced behind slope, and
Pile foundation carrying structure construction quality is more easy to control, can effectively control construction quality, investment reduction, reduction of erection time, has significantly
Technology and economic advantages.
(4) two placing of reinforcement concrete beam-type structures of two-wire are combined by reinforced concrete floor simultaneously, can
To be effectively increased the lateral stiffness of reinforced concrete beam type structure, left and right two joint reinforced concrete beam type structure is made to be placed in rigidity phase
On same reinforced concrete floor, the lateral stability of reinforced concrete beam type structure can be effectively increased, control reinforced concrete
Relative settlement between soil girder structure, is also beneficial to the maintenance during operation and maintenance, and measure construction simple, easy, cost save, effect
The best.
(5) reinforced concrete supporting beam that pile foundation carrying structure and reinforced concrete floor are arranged, can be greatly reduced pile foundation
The stress concentration phenomenon of armored concrete support rail beam base plate at carrying structure；Further, since laterally the connecting of reinforced concrete supporting beam
Connect effect, too increase lateral stiffness and the ability of opposing differential settlement deformation of structure, the quantity of transverse pile foundation can be reduced,
Reduce investment.
Accompanying drawing explanation
Fig. 1 is the schematic cross-sectional view of the present invention；
Fig. 2 is the schematic longitudinal section of the present invention；
Fig. 3 is the distribution schematic diagram of pile foundation of the present invention carrying structure；
Fig. 4 is that pile foundation reinforced concrete supporting beam of the present invention has just connect connection diagram with armored concrete support rail beam base plate.
Fig. 5 is that pile foundation reinforced concrete supporting beam of the present invention overlaps connection diagram with armored concrete support rail beam base plate.
Fig. 6 is the cross sectional representation of pin 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, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.If additionally, technical characteristic involved in each embodiment of invention described below
The conflict of not constituting each other just can be mutually combined.
Reference Fig. 1～Fig. 6, medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation joist type support rail girder construction, including
Pile foundation carrying structure 3, reinforced concrete supporting beam 90, armored concrete support rail beam base plate 2, two placing of reinforcement concrete beam-type structure 1,
Roadbed filling 5 and support rail beam both sides backfill filler 4 under support rail beam, wherein,
Described pile foundation carrying structure 3 is provided with many, and every described pile foundation carrying structure 3 is all vertically arranged, and every
Described reinforced concrete supporting beam 90 is all accepted on the top of described pile foundation carrying structure 3；
Described reinforced concrete supporting beam 90 accepts described armored concrete support rail beam base plate 2；
Described reinforced concrete beam type structure 1 is accepted on the top of described armored concrete support rail beam base plate 2；
The top of described pile foundation carrying structure 3 embeds described reinforced concrete supporting beam 90 and just connects with it, described reinforced concrete
Soil joist 90 has just connect with described armored concrete support rail beam base plate 2 or has overlapped, and described armored concrete support rail beam base plate 2 is with described
Reinforced concrete beam type structure 1 is one-body molded thus collectively forms armored concrete support rail beam 9；
It is provided with on described reinforced concrete supporting beam 90 for limiting described armored concrete support rail beam base plate 2 lateral displacement
Convex gear platform 91；
Wired weathering section is set between reinforced concrete beam type structure 1 described in two rows, weathering section tool between described line
There are cross fall and head fall, for current being introduced two adjacent sections armored concrete support rail beam base plate 2 internode expansion joint
And then current are discharged；Between described line, the cross fall of weathering section is 3%～5%, more preferably 4%, and weathering section between line
Head fall not less than 2 ‰, in order to draining.
Under described support rail beam roadbed filling 5 be arranged on shallow layer reinforcement district 6 and described armored concrete support rail beam base plate 2 it
Between, provide operation platform for backfilling filler 4 for described armored concrete support rail beam base plate 2 and support rail beam both sides, and for institute
State pile foundation carrying structure 3 and lateral support is provided；Wherein, described shallow layer reinforcement district 6 is arranged on the shallow top layer of soft stratum 7, and
Roadbed filling 5 and the vertical consistency of described reinforced concrete beam type structure 1 under described shallow layer reinforcement district 6, described support rail beam；
Described support rail beam both sides backfill filler 4 is accepted by roadbed filling 5 under described support rail beam, and described support rail beam two
Side backfill filler 4 props up the both sides of described armored concrete support rail beam base plate 2, with to described armored concrete support rail beam base plate 2
Shield and retrain the transverse shifting of described armored concrete support rail beam base plate 2, and maintenance passage is provided；
Under described support rail beam, roadbed filling 5 and described support rail beam side backfill filler 4 collectively form filler filling body 10, described
Filler filling body 10 both sides are provided with weathering 11；
The lower end of every described pile foundation carrying structure 3 sequentially passes through roadbed filling 5, described shallow layer reinforcement under described support rail beam
Stretching into behind district 6 and described soft stratum 7 in supporting course 8, with when soft stratum 7 produces sedimentation, described pile foundation carrying structure 3 can
Bear negative friction, thus provide stable carrying to armored concrete support rail beam base plate 2 and reinforced concrete beam type structure 1
Power, to reduce because vertical, the vertical and horizontal rigidity of armored concrete support rail beam 9 are produced not by the sedimentation of filler filling body 10
Profit impact.
Further, described pile foundation carrying structure 3 be cast-in-situ bored pile, reinforced concrete supporting beam and support rail beam base plate just connect or
Overlap joint, just connects with pile foundation carrying structure.Position reinforced concrete supporting beam at support rail beam internode seam uses pin with support rail beam base plate
Nail overlap joint, remaining position uses and just connects.
Described pin 10 includes pre-buried connection reinforcing bar 10.1, Colophonium hemp cut 10.2 and rustless steel sleeve pipe 10.3, described pre-buried
Connect reinforcing bar 10.1 be positioned at described rustless steel sleeve pipe 10.3 and be fixedly installed described Colophonium hemp cut 10.2 between the two.
The height of described support rail beam both sides backfill filler 4 is equal with the height of described armored concrete support rail beam base plate 2, institute
These the described pile foundations carrying structure 3 having is arranged in ranks.
This structural shape can effectively solve in low speed magnetic suspension traffic engineering low to put circuit tight to post-construction settlement of subgrade requirement
Lattice, the engineering taking traditional foundation stabilization measure to cause is huge, it is big, long in time limit to invest, and basement process and embankment
Construction quality is wayward, bedding long-time stability and the problem of poor durability, thus improves low circuit support rail girder construction of putting
Reliability, reduces the engineering risk of traditional structure pattern.
The armored concrete support rail beam 9 of the present invention uses reinforced concrete soil scene one-piece casting, to directly take on track lotus
Carry and the magnetic-levitation train load of track transmission, then deadweight and upper load are passed to pile foundation rigidly connected with it carrying structure
3, structural reliability is high, can save the large area stiffening basic ground produced after traditional embankment puts slope.
Pile foundation carrying structure 3 uses cast-in-situ bored pile, transverse direction and longitudinal direction to have and is arranged with many reinforced concrete drillings fillings
Note stake, vertical and horizontal rigidity is big；And pile foundation carries structure 3 and gos deep into supporting course 8, when soft stratum 7 produces sedimentation, pile foundation carries
Structure 3 still can be born negative friction and be provided stronger bearing capacity to armored concrete support rail beam base plate 2.
The reinforced concrete supporting beam 90 that pile foundation carrying structure 3 and reinforced concrete floor 2 are arranged, can be greatly reduced pile foundation
The stress concentration phenomenon of armored concrete support rail beam base plate 2 at carrying structure 3；Further, since the horizontal stroke of reinforced concrete supporting beam 90
To interconnection function, too increase lateral stiffness and the ability of opposing differential settlement deformation of structure, transverse pile foundation can be reduced
Quantity, reduces investment.
Two placing of reinforcement concrete beam-type structures of two-wire are combined by reinforced concrete floor, Ke Yiyou simultaneously
Effect increases the lateral stiffness of reinforced concrete beam type structure, makes left and right two joint reinforced concrete beam type structure be placed in rigidity identical
On reinforced concrete floor, the lateral stability of reinforced concrete beam type structure can be effectively increased, control reinforced beam
Relative settlement between formula structure, is also beneficial to the maintenance during operation and maintenance, and measure is simple, easily construct, cost saves, effect
Good.
Low when putting circuit by soft soil zone, top layer shallow to ground should be needed to carry out necessity add according to embankment stability
Gu, form shallow layer reinforcement district 6.The reinforcement depth in shallow layer reinforcement district 6 is by embankment stability control, and its reinforcement depth should be according to embankment
Raising, foundation condition are determined by stability calculation.Compared to by settling and stablizing the single ground of tradition when Two indices controls
For reinforcing mode, shallow layer reinforcement district 6 reinforcement depth is little, can effectively control roadbed reclamation and roadbed in conjunction with pile foundation carrying structure 3
Settlement after construction.By contrast, this new structure foundation stabilization quantity is little, invests little, and more conducively construction quality and settlement after construction
Control, and save cost and reduction of erection time.
The making step of the present invention is as follows:
(1) smooth construction site, requires to carry out the shallow layer foundation consolidation process of necessity, forms shallow layer reinforcement district according to design
6, then require placement in layers according to embankment and be densified to reinforced concrete floor bottom surface absolute altitude；
(2) it is in embankment subgrade cross section, the perfusion of vertical section direction construction drill at reinforced concrete floor bottom surface absolute altitude
Stake, i.e. pile foundation carrying structure 3, drilled pile construction should use the construction technology little to railway embankment disturbance, if desired at embankment
Steel pile casting is set in the range of filled height or draws hole；After cast-in-situ bored pile reaches desired strength, amputate pile crown by code requirement,
Assembling reinforcement concrete floor and the connection reinforcing bar with stake；
(3) according to design attitude to reinforced concrete supporting beam 90, convex gear platform 91 formwork erection, one-time-concreting molding, before pouring
Carry out all kinds of built-in fitting such as pin 10 and with pile foundation connect the location of reinforcing bar and installation, concrete is removed after reaching design strength
Template；
It is (4) long to armored concrete support rail beam base plate 2 and reinforced concrete beam type structure 1 merogenesis formwork erection according to design joint,
Between reinforced concrete beam type structure backfill face make intilted transverse drainage slope and and longitudinal drainage slope, by design requirement do
Good top layer is waterproof, one-time-concreting molding, and carrying out all kinds of built-in fitting such as sleeper pedestal before pouring, to connect reinforcing bar, water conservancy diversion rail bearing pre-buried
Part, pile foundation connect location and the installation of reinforcing bar etc.；
(4) difference form removal after each parts concrete reaches design strength, then by armored concrete support rail beam base plate 2
Bedding filler backfill in thickness range, outward-dipping weathering is made in backfill face and to carry out top layer by design requirement waterproof i.e.
Can.
As it will be easily appreciated by one skilled in the art that and 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, all should comprise
Within protection scope of the present invention.
Claims (7)
1. medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation joist type support rail girder construction, it is characterised in that include pile foundation
Under carrying structure, reinforced concrete supporting beam, armored concrete support rail beam base plate, two placing of reinforcement concrete beam-type structures, support rail beam
Roadbed filling and support rail beam both sides backfill filler, wherein,
Described pile foundation carrying structure is provided with many, and every described pile foundation carrying structure is all vertically arranged, and every described stake
Described reinforced concrete supporting beam is all accepted on the top of base carrying structure；
Described reinforced concrete supporting beam accepts described armored concrete support rail beam base plate；
Described reinforced concrete beam type structure is accepted on the top of described armored concrete support rail beam base plate；
Described pile foundation carrying structure top embed described reinforced concrete supporting beam just connect with it, described reinforced concrete supporting beam and
Described armored concrete support rail beam base plate has just connect or has overlapped, described armored concrete support rail beam base plate and described reinforced beam
Formula structural integrity molding thus collectively form armored concrete support rail beam；
The convex for limiting described armored concrete support rail beam base plate lateral displacement it is provided with on described reinforced concrete supporting beam
Gear platform；
Arranging wired weathering section described in two rows between reinforced concrete beam type structure, between described line, weathering section has laterally
The gradient and head fall, for current introducing two adjacent sections armored concrete support rail beam base plate internode expansion joint and then by water
Stream is discharged；
Under described support rail beam, roadbed filling is arranged between shallow layer reinforcement district and described armored concrete support rail beam base plate, for
Operation platform is provided for described armored concrete support rail beam base plate, reinforced concrete supporting beam and support rail beam both sides backfill filler, and
Lateral support is provided for described pile foundation carrying structure；Wherein, described shallow layer reinforcement district is arranged on the shallow top layer of soft stratum, and
Roadbed filling and described reinforced concrete beam type structure vertical consistency under described shallow layer reinforcement district, described support rail beam；
Described support rail beam both sides backfill filler is accepted by roadbed filling under described support rail beam, and the backfill of described support rail beam both sides
Filler props up the both sides of described armored concrete support rail beam base plate, to shield described armored concrete support rail beam base plate
And retrain the transverse shifting of described armored concrete support rail beam base plate, and provide maintenance passage；
Under described support rail beam, roadbed filling and described support rail beam side backfill filler collectively form filler filling body, and described filler fills
Body both sides are provided with weathering；
The lower end of every described pile foundation carrying structure sequentially passes through roadbed filling under described support rail beam, described shallow layer reinforcement district and institute
Stretching into after stating soft stratum in supporting course, with when soft stratum produces sedimentation, described pile foundation carrying structure can bear negative frictional resistance
Power, thus provide stable bearing capacity to armored concrete support rail beam base plate and reinforced concrete beam type structure, to reduce because filling out
The adverse effect that vertical, the vertical and horizontal rigidity of armored concrete support rail beam are produced by the sedimentation of material filling body.
Medium-and low-speed maglev traffic engineering two-wire embankment location the most according to claim 1 pile foundation joist type support rail girder construction,
It is characterized in that, described pile foundation carrying structure is cast-in-situ bored pile, and reinforced concrete supporting beam has just connect with support rail beam base plate or overlapped,
Just connect with pile foundation carrying structure.
Medium-and low-speed maglev traffic engineering two-wire embankment location the most according to claim 1 pile foundation joist type support rail girder construction,
It is characterized in that, position reinforced concrete supporting beam and support rail beam base plate at support rail beam internode seam use pin overlap joint, remaining position
Put employing just to connect.
Medium-and low-speed maglev traffic engineering two-wire embankment location the most according to claim 1 pile foundation joist type support rail girder construction,
It is characterized in that, the height of described support rail beam both sides backfill filler is equal with the height of described armored concrete support rail beam base plate.
Medium-and low-speed maglev traffic engineering two-wire embankment location the most according to claim 1 pile foundation joist type support rail girder construction,
It is characterized in that, pile foundation carrying structure described in all these is ranks arrangements.
Medium-and low-speed maglev traffic engineering two-wire embankment location the most according to claim 1 pile foundation joist type support rail girder construction,
It is characterized in that, between described line, the cross fall of weathering section is 3%～5%, and head fall is not less than 2 ‰.
Medium-and low-speed maglev traffic engineering two-wire embankment location the most according to claim 1 pile foundation joist type support rail girder construction,
It is characterized in that, described pin includes that pre-buried connection reinforcing bar, Colophonium hemp cut and rustless steel sleeve pipe, described pre-buried connection reinforcing bar are positioned at
Described rustless steel sleeve pipe is interior and is fixedly installed described Colophonium hemp cut between the two.
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| CN201610825061.0A CN106283948B (en) | 2016-09-15 | 2016-09-15 | Medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation joist type support rail girder construction |
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| CN201610825061.0A CN106283948B (en) | 2016-09-15 | 2016-09-15 | Medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation joist type support rail girder construction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107119507A (en) * | 2017-06-28 | 2017-09-01 | 中铁第四勘察设计院集团有限公司 | It is a kind of can long distance water transfer high-speed railway |
| CN107119506A (en) * | 2017-06-28 | 2017-09-01 | 中铁第四勘察设计院集团有限公司 | A kind of and water delivery and the high-speed railway subgrade of communication function |
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| CN107119507A (en) * | 2017-06-28 | 2017-09-01 | 中铁第四勘察设计院集团有限公司 | It is a kind of can long distance water transfer high-speed railway |
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