CN106283952A - Medium-and low-speed maglev two-wire excavation location pile foundation joist framing type support rail girder construction - Google Patents

Medium-and low-speed maglev two-wire excavation location pile foundation joist framing type support rail girder construction Download PDF

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Publication number
CN106283952A
CN106283952A CN201610826119.3A CN201610826119A CN106283952A CN 106283952 A CN106283952 A CN 106283952A CN 201610826119 A CN201610826119 A CN 201610826119A CN 106283952 A CN106283952 A CN 106283952A
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China
Prior art keywords
support rail
pile foundation
rail beam
base plate
reinforced concrete
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Application number
CN201610826119.3A
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CN106283952B (en
Inventor
郭建湖
李小和
赵新益
姜鹰
姚洪锡
李巍
王勇刚
杨辉建
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China Railway Siyuan Survey and Design Group Co Ltd
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China Railway Siyuan Survey and Design Group Co Ltd
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Priority to CN201610826119.3A priority Critical patent/CN106283952B/en
Publication of CN106283952A publication Critical patent/CN106283952A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2/00General structure of permanent way
    • E01B2/006Deep foundation of tracks
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B1/00Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B1/00Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • E01B1/008Drainage of track
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B25/00Tracks for special kinds of railways
    • E01B25/30Tracks for magnetic suspension or levitation vehicles
    • E01B25/305Rails or supporting constructions
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/10Deep foundations
    • E02D27/12Pile foundations
    • E02D27/14Pile framings, i.e. piles assembled to form the substructure
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/32Foundations for special purposes
    • E02D27/34Foundations for sinking or earthquake territories
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00Characteristics of the track and its foundations
    • E01B2204/07Drainage
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00Characteristics of the track and its foundations
    • E01B2204/08Deep or vertical foundation
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00Characteristics of the track and its foundations
    • E01B2204/09Ballastless 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 two-wire excavation location pile foundation joist framing type support rail girder construction, including pile foundation carrying structure, reinforced concrete supporting beam, two placing of reinforcement concrete support rail beam base plates, two placing of reinforcement concrete beam-type structures 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

Medium-and low-speed maglev two-wire excavation location pile foundation joist framing type support rail girder construction
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 two-wire excavation location support rail beam transition section structure 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 roadbed earth structure, roadbed 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, uses conventional support rail beam structure construction difficult quality to control.
(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 two-wire excavation location stake Base beam framing type support rail girder construction, can avoid the low defect putting circuit support rail girder construction of tradition, and construction quality is easier to control, During long-time stability are more preferable, and it both meets, support rail girder construction is deformed and after work by low speed magnetic suspension traffic engineering track structure Settle high requirement, meet again bedding long-time stability, durability and the requirement of construction quality controllability.
For achieving the above object, it is proposed, according to the invention, provide medium-and low-speed maglev two-wire excavation location pile foundation joist framing type Support rail girder construction, it is characterised in that include at the bottom of pile foundation carrying structure, reinforced concrete supporting beam, two placing of reinforcement concrete support rail beams Plate, two placing of reinforcement concrete beam-type structures 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 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;
Reinforced beam described in a corresponding row is accepted at the top often arranging described armored concrete support rail beam base plate respectively Formula structure;
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;
Described in two rows, between armored concrete support rail beam base plate, filler between support rail beam is set;
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;
Described reinforced concrete supporting beam both sides are provided with for limiting described armored concrete support rail beam base plate lateral displacement Convex gear platform;
Described support rail beam both sides backfill filler is arranged on soft stratum, and by described support rail beam both sides backfill filler Being provided with gutter, described gutter is provided with weathering away from the side of described support rail beam both sides backfill filler;
Described armored concrete support rail beam base plate is positioned at described support rail beam both sides backfill filler;
The lower end of every described pile foundation carrying structure is stretched in supporting course, with at soft stratum after described soft stratum When producing sedimentation, described pile foundation carrying structure can bear negative friction, thus provides stable to concrete-steel reinforced concrete support rail beam Bearing capacity, in case the differential settlement of support rail beam both sides backfill filler reduce armored concrete support rail beam vertical, longitudinally and The adverse effect of lateral stiffness..
Preferably, described pile foundation carrying structure is cast-in-situ bored pile, and joist has just connect with support rail beam base plate or overlapped, with pile foundation Carrying structure just connects.Using pin overlap joint in the position of support rail beam internode seam, remaining position uses and just connects.
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 roadbed 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 that causes because foundation stabilization quality is wayward is uneven heavy The fall impact on support rail beam vertical and horizontal rigidity, structure vertical cross stiffness is more excellent.
(3) the pile foundation carrying structure control effect of settling of the present invention is preferable, therefore can save cutting bedding foundation stabilization and Reduce cutting bedding replacement thickness, only need to meet the requirement of basic replacement thickness, can investment reduction, the reduction of erection time, have substantially 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, reduces the differential settlement between gauge, is also beneficial to the maintenance during operation and maintenance, measure letter Single, easily construction, cost save, effective.
(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 the lateral connection effect of joist, also increase Add lateral stiffness and the ability of opposing differential settlement deformation of structure, the quantity of transverse pile foundation can have been reduced, reduce investment.
(6) i.e. divide two rows to arrange by framing type setting armored concrete support rail beam base plate, can avoid making at train load It is in multi-direction bending deformation and complex stress condition, compared to the tradition increasingly complex support rail beam of stress with lower support rail beam base plate Speech, framing pile foundation joist type support rail beam can reduce buckling deformation to support rail beam base plate and the impact of top girder structure.
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 plane distribution schematic diagram of pile foundation of the present invention carrying structure;
Fig. 4 is pile foundation joist of the present invention and the armored concrete support rail affixed connection diagram of beam base plate.
Fig. 5 is that pile foundation joist 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.
With reference to Fig. 1~Fig. 4, medium-and low-speed maglev two-wire excavation location pile foundation joist framing type support rail girder construction, including pile foundation Carrying structure 3, reinforced concrete supporting beam 90, two placing of reinforcement concrete support rail beam base plate 2, two placing of reinforcement concrete beam-type structure 1 With support rail beam both sides backfill filler 4, 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 formed by integrally casting molding thus collectively form armored concrete support rail beam 9;
Filler 21 between support rail beam is set between armored concrete support rail beam base plate 2 described in two rows;
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.
Described reinforced concrete supporting beam 90 both sides are provided with for limiting the described horizontal position of armored concrete support rail beam base plate 2 The convex gear platform 91 moved;
Described support rail beam both sides backfill filler 4 is arranged on soft stratum 5, and backfills filler in described support rail beam both sides 4 sides are provided with gutter 7, and described gutter 7 is provided with weathering 8 away from the side of described support rail beam both sides backfill filler 4;
Described armored concrete support rail beam base plate 2 is positioned at described support rail beam both sides backfill filler 4;
The lower end of every described pile foundation carrying structure 3 is stretched in supporting course 6, with in weakness after described soft stratum 5 When stratum 5 produces sedimentation, described pile foundation carrying structure 3 can bear negative friction, thus carries to concrete-steel reinforced concrete support rail beam 9 For stable bearing capacity, in case the differential settlement of support rail beam both sides backfill filler 4 reduces the perpendicular of armored concrete support rail beam 9 To, vertical and horizontal rigidity.
Further, described pile foundation carrying structure 3 is cast-in-situ bored pile, and its top is stretched at the bottom of described armored concrete support rail beam Interior and cast-in-situ bored pile the steel reinforcement cage of plate 2 also stretches in described armored concrete support rail beam base plate 2, stake described in all these Base carrying structure 3 is arranged in ranks.
Position reinforced concrete supporting beam 90 at support rail beam internode seam uses pin 12 to overlap with reinforced concrete floor 2, Remaining position uses and just connects.
Described pin 12 includes pre-buried connection reinforcing bar 12.1, Colophonium hemp cut 12.2 and rustless steel sleeve pipe 12.3, described pre-buried Connect reinforcing bar 12.1 be positioned at described rustless steel sleeve pipe 12.3 and be fixedly installed described Colophonium hemp cut 12.2 between the two.
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, engineering that replacement thickness causes greatly is huge, it is big, long in time limit to invest to take traditional cutting to excavate, and backfill filler construction Quality is wayward, bedding long-time stability and the problem of poor durability, thus improves and low put the reliable of circuit support rail girder construction Degree, reduces engineering risk.
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 track transmission magnetic-levitation train load, then deadweight and upper load are passed to joist be delivered to again pile foundation carry structure 3, Structural reliability is high, can save cutting bedding foundation stabilization and reduce cutting bedding replacement thickness, only need to meet substantially to change and fill out thickness Degree requirement, can investment reduction, the reduction of erection time, there are obvious technology and economic advantages.
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 6, when soft stratum 5 produces sedimentation, pile foundation carries Knot still can bear negative friction and provide stronger bearing capacity to armored concrete support rail beam base plate 2.
Adjacent armored concrete support rail beam base plate 2 shares pile foundation joist composite bearing structure, and at adjacent reinforcing bar Reserved expansion joint between concrete support rail beam base plate 2, can avoid the section of encorbelmenting by the impact failure of train load, and reduce temperature should Power and the impact of shrinkage and creep.
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;Further, since the lateral connection effect of joist 90, Too increase lateral stiffness and the ability of opposing differential settlement deformation of structure, the quantity of transverse pile foundation can be reduced, reduce and throw Money.
Being arranged by framing type by armored concrete support rail beam base plate i.e. divides two rows to arrange, and can avoid under High-speed Train Loads Support rail beam base plate is in multi-direction bending deformation and complex stress condition, for the support rail beam increasingly complex compared to tradition stress, Framing pile foundation joist type support rail beam can reduce buckling deformation to support rail beam base plate and the impact of top girder structure.
The making step that the present invention is concrete is as follows:
(1) excavating cut slope side slope is to designing at road bed absolute altitude, requires that the bedding carrying out necessity changes according to design and fills out;
(2) it is in subgrade cross section, vertical section direction construction drill bored concrete pile at reinforced concrete floor bottom surface absolute altitude, i.e. Pile foundation carrying structure 3, drilled pile construction should use the construction technology little to the most filling roadbed disturbance;Reach to want at cast-in-situ bored pile After seeking intensity, amputate pile crown, colligation concrete floor and the connection reinforcing bar with stake by code requirement;
(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, One-time-concreting molding, carries out all kinds of built-in fitting such as pin, sleeper pedestal connection reinforcing bar, water conservancy diversion rail bearing built-in fitting etc. before pouring Location and installation;
(5) form removal, backfill between reinforced concrete beam type structure lines respectively after each parts concrete reaches design strength Intilted transverse drainage slope and longitudinal drainage slope are made in face, then by armored concrete support rail beam base plate 2 thickness range Bedding filler backfills, and outward-dipping weathering 8 is made in backfill face, carries out top layer by design requirement waterproof, and carries out gutter 7 And weathering 8 on gutter 7, i.e. form medium-and low-speed maglev two-wire excavation location pile foundation joist framing type support rail girder construction.
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 (6)

1. medium-and low-speed maglev two-wire excavation location pile foundation joist framing type support rail girder construction, it is characterised in that include that pile foundation carries Structure, reinforced concrete supporting beam, two placing of reinforcement concrete support rail beam base plates, two placing of reinforcement concrete beam-type structure and support rail beams two Side 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;
Reinforced concrete beam type knot described in a corresponding row is accepted at the top often arranging described armored concrete support rail beam base plate respectively Structure;
Described reinforced concrete beam type structure is accepted at 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 pours molding thus collectively forms armored concrete support rail beam;
Described in two rows, between armored concrete support rail beam base plate, filler between support rail beam is set;
Described reinforced concrete supporting beam both sides are provided with for limiting the convex of described armored concrete support rail beam base plate lateral displacement Type 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;
Described support rail beam both sides backfill filler is arranged on soft stratum, and in the other setting of backfill filler of described support rail beam both sides Having gutter, described gutter is provided with weathering away from the side of described support rail beam both sides backfill filler;
Described armored concrete support rail beam base plate is positioned at described support rail beam both sides backfill filler;
The lower end of every described pile foundation carrying structure is stretched in supporting course after described soft stratum, to produce at soft stratum During sedimentation, described pile foundation carrying structure can bear negative friction, thus provides stable holding to concrete-steel reinforced concrete support rail beam Load power, in case the differential settlement of support rail beam both sides backfill filler reduces vertical, the vertical and horizontal of armored concrete support rail beam The adverse effect that rigidity produces;
One end of described armored concrete support rail beam base plate is overlapped on described bridge abutment, and both are released by pin connection Put longitudinal restraint, and limit lateral displacement;
Medium-and low-speed maglev two-wire excavation location the most according to claim 1 pile foundation joist framing type support rail girder construction, it is special Levying and be, described pile foundation carrying structure is that cast-in-situ bored pile joist has just connect with support rail beam base plate or overlapped, and carries structure with pile foundation Just connect.
Medium-and low-speed maglev two-wire excavation location the most according to claim 1 pile foundation joist framing type support rail girder construction, it is special Levying and be, position joist and support rail beam base plate at support rail beam internode seam use pin overlap joint, and remaining position uses and just connects.
Medium-and low-speed maglev two-wire excavation location the most according to claim 1 pile foundation joist framing type support rail girder construction, it is special Levying and be, pile foundation carrying structure described in all these is ranks arrangements.
Medium-and low-speed maglev two-wire excavation location the most according to claim 1 pile foundation joist framing type support rail girder construction, it is special Levying and be, between described line, the cross fall of weathering section is 3%~5%, and head fall is not less than 2 ‰.
Torr medium-and low-speed maglev two-wire excavation location the most according to claim 1 pile foundation joist framing type support rail girder construction, its Being characterised by, 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 institute State in rustless steel sleeve pipe and be fixedly installed described Colophonium hemp cut between the two.
CN201610826119.3A 2016-09-15 2016-09-15 Medium-and low-speed maglev two-wire excavation location pile foundation joist framing type support rail girder construction Active CN106283952B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1010307C1 (en) * 1998-10-13 2000-04-17 Grimbergen Holding B V Track support structure for railway system comprises track bearing slab fixed to integral spacers projecting from bottom of pre-stressed concrete trough units post tensioned in long lengths and supported on piled columns
CN1916277A (en) * 2006-09-07 2007-02-21 铁道第二勘察设计院 Track base without broken stones, and building method
CN201473888U (en) * 2009-09-02 2010-05-19 北京磁通设备制造有限公司 Elevated rail bridge
JP2012057385A (en) * 2010-09-10 2012-03-22 Central Japan Railway Co Bridge
CN204676374U (en) * 2015-05-27 2015-09-30 中国中铁航空港建设集团有限公司 A kind of strengthening mechanism of rail track
CN206157489U (en) * 2016-09-15 2017-05-10 中铁第四勘察设计院集团有限公司 Moderate -low speed magnetic levitation double -line excavation location supporting beam of pile foundation framing type support rail girder construction

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1010307C1 (en) * 1998-10-13 2000-04-17 Grimbergen Holding B V Track support structure for railway system comprises track bearing slab fixed to integral spacers projecting from bottom of pre-stressed concrete trough units post tensioned in long lengths and supported on piled columns
CN1916277A (en) * 2006-09-07 2007-02-21 铁道第二勘察设计院 Track base without broken stones, and building method
CN201473888U (en) * 2009-09-02 2010-05-19 北京磁通设备制造有限公司 Elevated rail bridge
JP2012057385A (en) * 2010-09-10 2012-03-22 Central Japan Railway Co Bridge
CN204676374U (en) * 2015-05-27 2015-09-30 中国中铁航空港建设集团有限公司 A kind of strengthening mechanism of rail track
CN206157489U (en) * 2016-09-15 2017-05-10 中铁第四勘察设计院集团有限公司 Moderate -low speed magnetic levitation double -line excavation location supporting beam of pile foundation framing type support rail girder construction

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