CN106283954A - Medium-and low-speed maglev traffic engineering single line excavation location pile foundation combined type support rail girder construction - Google Patents
Medium-and low-speed maglev traffic engineering single line excavation location pile foundation combined type support rail girder construction Download PDFInfo
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- CN106283954A CN106283954A CN201610826189.9A CN201610826189A CN106283954A CN 106283954 A CN106283954 A CN 106283954A CN 201610826189 A CN201610826189 A CN 201610826189A CN 106283954 A CN106283954 A CN 106283954A
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- support rail
- pile foundation
- rail beam
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- armored concrete
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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
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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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- 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
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- Structural Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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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 single line excavation location pile foundation combined type support rail girder construction, including the first pile foundation carrying structure, pile foundation joist composite bearing structure, armored concrete support rail beam base plate, reinforced concrete beam type structure and support rail beam both sides backfill filler, described first pile foundation carrying structure is provided with many, and described armored concrete support rail beam base plate is accepted on the top of every described first pile foundation carrying structure；Described reinforced concrete beam type structure is accepted on the top of described armored concrete support rail beam base plate；Being provided with gutter by described support rail beam both sides backfill filler, described gutter is provided with weathering away from described in the side of support rail beam both sides backfill filler.The present invention can meet the requirement that middle low speed magnetic suspension traffic engineering track structure is high to the deformation of support rail girder construction and settlement after construction, can meet again bedding long-time stability, durability and the requirement of construction quality controllability, 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 single line excavation 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 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, and settlement after construction 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 traffic engineering single line and dig
Side's location pile foundation combined 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
The requirement high with settlement after construction, meets 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 traffic engineering single line excavation location pile foundation multiple
Box-like support rail girder construction, it is characterised in that include the first pile foundation carrying structure, pile foundation joist composite bearing structure, reinforced concrete
Soil support rail beam base plate, reinforced concrete beam type structure and support rail beam both sides backfill filler, wherein,
Described first pile foundation carrying structure and described pile foundation joist composite bearing structure accept described armored concrete jointly
Support rail beam base plate；
Described first pile foundation carrying structure is provided with many, and every described first pile foundation carrying structure is all vertically arranged, and
And every described first pile foundation carrying structure top all accept described armored concrete support rail beam base plate, described first pile foundation is held
Carry the structure top end described armored concrete support rail beam base plate of embedding just to connect with it；
Described reinforced concrete beam type structure, and two adjacent sections are accepted in the top of described armored concrete support rail beam base plate
Between described armored concrete support rail beam base plate, expansion joint is set；
Described pile foundation joist composite bearing structure is provided with multiple, and two pieces of adjacent described armored concrete support rail beams
Pile foundation joist composite bearing structure described in one it is respectively provided with, for supporting these two blocks of adjacent described reinforcing bars at the expansion joint of base plate
Concrete support rail beam base plate, each described pile foundation joist composite bearing structure all includes that reinforced concrete supporting beam and the second pile foundation are held
Carrying structure, and described reinforced concrete supporting beam is all accepted on the top of every described second pile foundation carrying structure, described reinforcing bar mixes
Solidifying soil joist accepts described armored concrete support rail beam base plate；
The top of described second pile foundation carrying structure embeds described reinforced concrete supporting beam and just connects with it, described reinforced concrete
Soil joist has just connect with described armored concrete support rail beam base plate or has overlapped；
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 first pile foundation carrying structure is stretched in supporting course, with in weakness after described soft stratum
When stratum produces sedimentation, described first pile foundation carrying structure can bear negative friction, thus to concrete-steel reinforced concrete support rail beam
There is provided stable bearing capacity, in case the differential settlement of support rail beam both sides backfill filler reduces the perpendicular of armored concrete support rail beam
To, vertical and horizontal rigidity.
Preferably, described first 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.Position joist at support rail beam internode seam uses pin overlap joint with support rail beam base plate, and remaining position is adopted
With just connecing.
Preferably, described in all these, the first pile foundation carrying structure is ranks arrangements.
Preferably, the lower end of every described second pile foundation carrying structure sequentially passes through roadbed filling, institute under described support rail beam
Stretch in supporting course after stating shallow layer reinforcement district and described soft stratum.
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 first pile foundation carrying structure rigidly connected with it, structural reliability is high.
(2) the first pile foundation carrying structure of the present invention is goed deep in supporting course, and roadbed produces when necessarily settling, and the first pile foundation is held
Carry structure still to bear negative friction and stronger bearing capacity is provided, it is to avoid cause because foundation stabilization quality is wayward
Differential settlement is vertical on support rail beam, the impact of vertical and horizontal rigidity, and structure vertical cross stiffness and structural reliability are more excellent.
(3) the first pile foundation carrying structure control effect of settling of the present invention is preferable, therefore can save cutting bedding ground and add
Gu 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
Significantly technology and economic advantages.
(4) 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.
(5) adjacent segments armored concrete support rail beam base plate internode shares pile foundation joist composite bearing structure, and adjacent
Armored concrete support rail beam base plate between reserved expansion joint, the section of encorbelmenting can be avoided by the impact failure of train load, and reduce
Temperature stress and the impact of shrinkage and creep.
Accompanying drawing explanation
Fig. 1 is the schematic longitudinal section of the present invention；
Fig. 2 is the profile in Fig. 1 along I-I line；
Fig. 3 is the profile in Fig. 1 along II-II line；
Fig. 4 is the first pile foundation carrying structure and plane distribution schematic diagram of pile foundation joist composite bearing structure in the present invention；
Fig. 5 is armored concrete support rail beam base plate and the connection diagram of the first pile foundation carrying structure in the present invention.
Fig. 6 is that in the present invention, reinforced concrete supporting beam has just connect connection diagram with pile foundation carrying structure.
Fig. 7 is reinforced concrete supporting beam and pile foundation carrying structure overlap joint connection diagram in the present invention.
Fig. 8 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. 7, medium-and low-speed maglev traffic engineering single line excavation location pile foundation combined type support rail girder construction, including
First pile foundation carrying structure 3, armored concrete support rail beam base plate 2, reinforced concrete beam type structure 1 and support rail beam both sides are filled out
Material 4, wherein,
Described first pile foundation carrying structure 3 and described pile foundation joist composite bearing structure 90 accept described reinforced concrete jointly
Soil support rail beam base plate 2；
Described first pile foundation carrying structure 3 is provided with many, and every described first pile foundation carrying structure 3 is all vertically arranged,
And described armored concrete support rail beam base plate 2 is all accepted on the top of every described first pile foundation carrying structure 3, described first
The top of base carrying structure 3 embeds described armored concrete support rail beam base plate 2 and just connects with it；
Described reinforced concrete beam type structure 1, and adjacent two are accepted in the top of described armored concrete support rail beam base plate 2
Save and between described armored concrete support rail beam base plate 2, expansion joint is set；
Described pile foundation joist composite bearing structure 90 is provided with multiple and adjacent two piece described armored concrete support rail
Pile foundation joist composite bearing structure 90 described in one it is respectively provided with, for supporting these two pieces of adjacent institutes at the expansion joint of beam base plate 2
Stating armored concrete support rail beam base plate 2, each described pile foundation joist composite bearing structure 90 all includes reinforced concrete supporting beam 901
Carry structure 902 with the second pile foundation, and described reinforced concrete is all accepted on the top of every described second pile foundation carrying structure 902
Soil joist 901, described reinforced concrete supporting beam 901 accepts described armored concrete support rail beam base plate 2；
The top of described second pile foundation carrying structure 3 embeds described reinforced concrete supporting beam 901 and just connects with it, described reinforcing bar
Concrete joist 901 has just connect with described armored concrete support rail beam base plate 2 or has overlapped；
Described reinforced concrete supporting beam 901 both sides are provided with for limiting described armored concrete support rail beam base plate 2 horizontal
The convex gear platform 91 of displacement；
Described reinforced concrete beam type structure 1, and described steel are accepted in the top of described armored concrete support rail beam base plate 2
Reinforced concrete support rail beam base plate 2 and described reinforced concrete beam type structure 1 formed by integrally casting molding, thus collectively form reinforced concrete
Soil support rail beam 9；
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 first pile foundation carrying structure 3 through stretching in supporting course 6 after described soft stratum 5, with
When soft stratum 5 produces sedimentation, described first pile foundation carrying structure 3 can bear negative friction, thus to concrete-steel reinforced concrete
Support rail beam 9 provides stable bearing capacity, in case the differential settlement of support rail beam both sides backfill filler 4 reduces armored concrete support rail
Vertical, the vertical and horizontal rigidity of beam 9.
Further, described first pile foundation carrying structure 3 is cast-in-situ bored pile, and joist has just connect with support rail beam base plate or overlapped,
Just connect with pile foundation carrying structure.Position joist at support rail beam internode seam uses pin overlap joint, remaining position with support rail beam base plate
Use and just connect or overlapped.
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.
Described in all these, the first pile foundation carrying structure 3 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, 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 the magnetic-levitation train load of track transmission, then deadweight and upper load are passed to first pile foundation carrying rigidly connected with it
Structure 3, structural reliability is high, can save cutting bedding foundation stabilization and reduce cutting bedding replacement thickness, only need to meet basic
The requirement of replacement thickness, can investment reduction, the reduction of erection time, there are obvious technology and economic advantages.
First 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 drills
Hole pouring pile, vertical and horizontal rigidity is big；And first pile foundation carrying structure 3 go deep into supporting course 6, when soft stratum 5 produces sedimentation,
Pile foundation carrying knot still can bear negative friction and provide 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.
Adjacent segments armored concrete support rail beam base plate 2 internode shares pile foundation joist composite bearing structure, and adjacent
Reserved expansion joint between armored concrete support rail beam base plate, can avoid the section of encorbelmenting by the impact failure of train load, and reduce temperature
Degree stress and the impact of shrinkage and creep.
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.
First pile foundation carrying structure 3, drilled pile construction should use the construction technology little to the most filling roadbed disturbance；Reach at cast-in-situ bored pile
After desired strength, amputate pile crown, colligation concrete floor and the connection reinforcing bar with stake by code requirement；
(3) long to reinforced concrete supporting beam 90, convex gear platform 91, armored concrete support rail beam base plate 2 and according to design joint
Reinforced concrete beam type structure 1 merogenesis formwork erection, one-time-concreting molding, carry out all kinds of built-in fitting such as pin 10, sleeper platform before pouring
Seat connects location and the installation of reinforcing bar, water conservancy diversion rail bearing built-in fitting etc.；
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 10, sleeper pedestal and connects reinforcing bar, water conservancy diversion rail bearing built-in fitting etc. before pouring
Location and installation；
(5) difference form removal after each parts concrete reaches design strength, then by armored concrete support rail beam base plate 2
In thickness range, bedding filler backfills, and outward-dipping weathering 8 is made in backfill face, carries out top layer by design requirement waterproof, and
Carry out weathering 8 on gutter 7 and gutter 7, i.e. form one for medium-and low-speed maglev traffic engineering single line excavation location
Pile foundation combined 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 traffic engineering single line excavation location pile foundation combined type support rail girder construction, it is characterised in that include first
Pile foundation carries structure, pile foundation joist composite bearing structure, armored concrete support rail beam base plate, reinforced concrete beam type structure and holds
Beam-and-rail both sides backfill filler, wherein,
Described first pile foundation carrying structure and described pile foundation joist composite bearing structure accept described armored concrete support rail jointly
Beam base plate；
Described first pile foundation carrying structure is provided with many, and every described first pile foundation carrying structure is all vertically arranged, and often
Described armored concrete support rail beam base plate, described first pile foundation carrying knot are all accepted in the top of the first pile foundation carrying structure described in root
The top of structure embeds described armored concrete support rail beam base plate and just connects with it；
Described reinforced concrete beam type structure is accepted on the top of described armored concrete support rail beam base plate, and described in two adjacent sections
Between armored concrete support rail beam base plate, expansion joint is set；
Described pile foundation joist composite bearing structure is provided with multiple, and two pieces of adjacent described armored concrete support rail beam base plates
Expansion joint at be respectively provided with pile foundation joist composite bearing structure described in, for support these two pieces of adjacent described reinforced concretes
Soil support rail beam base plate, each described pile foundation joist composite bearing structure all includes reinforced concrete supporting beam and the second pile foundation carrying knot
Structure, and every described second pile foundation carrying structure top all accept described reinforced concrete supporting beam, described armored concrete
Joist accepts described armored concrete support rail beam base plate；
The top of described second 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；
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；
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 first pile foundation carrying structure is stretched in supporting course, with at soft stratum after described soft stratum
When producing sedimentation, described first pile foundation carrying structure can bear negative friction, thus provides to concrete-steel reinforced concrete support rail beam
Stable bearing capacity, in case the differential settlement of support rail beam both sides backfill filler reduces the vertical, vertical of armored concrete support rail beam
To and lateral stiffness.
Medium-and low-speed maglev traffic engineering single line excavation location the most according to claim 1 pile foundation combined type support rail girder construction,
It is characterized in that, described first pile foundation carrying structure is cast-in-situ bored pile, and its joist has just connect with support rail beam base plate or overlapped, with stake
Base carrying structure just connects.
Medium-and low-speed maglev traffic engineering single line excavation location the most according to claim 1 pile foundation combined type support rail girder construction,
It is characterized in that, 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 traffic engineering single line excavation location the most according to claim 1 pile foundation combined type support rail girder construction,
It is characterized in that, described in all these, the first pile foundation carrying structure is ranks arrangements.
Medium-and low-speed maglev traffic engineering single line excavation location the most according to claim 1 pile foundation combined type support rail girder construction,
It is characterized in that, the lower end of every described second pile foundation carrying structure sequentially passes through roadbed filling under described support rail beam, described shallow
Stretch in supporting course behind layer stabilization zone and described soft stratum.
Medium-and low-speed maglev traffic engineering single line embankment the most according to claim 1 ground stage composite support rail girder construction, it is special
Levying and be, it is described 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
Rustless steel sleeve pipe is interior and is fixedly installed described Colophonium hemp cut between the two.
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| CN201610826189.9A CN106283954B (en) | 2016-09-15 | 2016-09-15 | Medium-and low-speed maglev traffic engineering single line excavation location pile foundation combined type support rail girder construction |
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| 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 |
| CN206157486U (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 traffic engineering single line excavation location pile foundation combined type support rail girder construction |
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