CN106283940A - Medium-and low-speed maglev traffic engineering single line excavation location detached pier pillar support rail girder construction - Google Patents
Medium-and low-speed maglev traffic engineering single line excavation location detached pier pillar support rail girder construction Download PDFInfo
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- CN106283940A CN106283940A CN201610825657.0A CN201610825657A CN106283940A CN 106283940 A CN106283940 A CN 106283940A CN 201610825657 A CN201610825657 A CN 201610825657A CN 106283940 A CN106283940 A CN 106283940A
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- support rail
- rail beam
- base plate
- pile foundation
- 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
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/30—Tracks for magnetic suspension or levitation vehicles
- E01B25/305—Rails or supporting constructions
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Foundations (AREA)
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 detached pier pillar support rail girder construction, including pile foundation carrying structure, armored concrete support rail beam base plate, reinforced concrete beam type structure and support rail beam both sides backfill filler, described 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 pile foundation carrying structure；The top ends of described armored concrete support rail beam base plate accepts described reinforced concrete beam type structure；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 detached pier pillar 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, the invention provides medium-and low-speed maglev traffic engineering single line excavation location detached pier pillar to hold
Beam-and-rail structure, it is characterised in that include that pile foundation carries structure, armored concrete support rail beam base plate, reinforced concrete beam type structure
With 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 armored concrete support rail beam base plate is accepted on the top stating pile foundation carrying structure；
Described reinforced concrete beam type structure, and described pile foundation are accepted in the top of described armored concrete support rail beam base plate
Carrying structure embeds described armored concrete support rail beam base plate, described armored concrete support rail beam base plate and described armored concrete
Girder structure formed by integrally casting molding thus collectively form armored concrete support rail beam；
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
Lateral stiffness.
Preferably, described pile foundation carrying structure 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 also stretches in described armored concrete support rail beam base plate.
Preferably, pile foundation carrying structure described in all these is ranks arrangements.
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 the foundation stabilization quality wayward differential settlement caused
Vertical, the impact of vertical and horizontal rigidity on support rail beam, structure vertical cross stiffness and structural reliability are more excellent.
(3) the pile foundation carrying structure control effect of settling of the present invention is preferable, therefore can reduce cutting bedding replacement thickness, only
The requirement of basic replacement thickness need to be met, can investment reduction, the reduction of erection time, there are obvious technology and economic advantages.
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 the connection diagram that in the present invention, armored concrete support rail beam base plate and pile foundation carry structure.
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 traffic engineering single line excavation location detached pier pillar support rail girder construction, it is special
Levy and be, including pile foundation carrying structure 3, armored concrete support rail beam base plate 2, reinforced concrete beam type structure 1 and support rail beam two
Side 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 armored concrete support rail beam base plate 2 is accepted on the top of described pile foundation carrying structure 3；
Described reinforced concrete beam type structure 1, and described stake are accepted in the top of described armored concrete support rail beam base plate 2
Base carrying structure 3 embeds described armored concrete support rail beam base plate 2 and just connects with it, described armored concrete support rail beam base plate 2 and
Described reinforced concrete beam type structure 1 formed by integrally casting molding thus collectively form armored concrete 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 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.
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 pile foundation rigidly connected with it carrying 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
The requirement of thickness, 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.
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；
It is (3) 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 sleeper pedestal and connects the location of reinforcing bar, water conservancy diversion rail bearing built-in fitting etc. before pouring
With installation；
(4) 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 middle low speed magnetic suspension traffic engineering is low and put circuit list
Line excavation location detached pier pillar 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 (3)
1. medium-and low-speed maglev traffic engineering single line excavation location detached pier pillar support rail girder construction, it is characterised in that include pile foundation
Carrying structure, armored concrete support rail beam base plate, reinforced concrete beam type structure 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 armored concrete support rail beam base plate is accepted on the top of base carrying structure；
Described reinforced concrete beam type structure, and the carrying of described pile foundation are accepted in the top of described armored concrete support rail beam base plate
Structure just connects with it with embedding described armored concrete support rail beam base plate, described armored concrete support rail beam base plate and described reinforcing bar
Concrete beam-type structural integrity pours molding thus collectively forms armored concrete support rail beam；
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
Rigidity.
Medium-and low-speed maglev traffic engineering single line excavation location the most according to claim 1 detached pier pillar support rail girder construction,
It is characterized in that, described pile foundation carrying structure is cast-in-situ bored pile, and its top is stretched in described armored concrete support rail beam base plate
And the steel reinforcement cage of cast-in-situ bored pile also stretches in described armored concrete support rail beam base plate.
Medium-and low-speed maglev traffic engineering single line excavation location the most according to claim 1 detached pier pillar support rail girder construction,
It is characterized in that, pile foundation carrying structure described in all these is ranks arrangements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825657.0A CN106283940B (en) | 2016-09-15 | 2016-09-15 | Medium-and low-speed maglev traffic engineering single line excavation location independence pier stud type support rail girder construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825657.0A CN106283940B (en) | 2016-09-15 | 2016-09-15 | Medium-and low-speed maglev traffic engineering single line excavation location independence pier stud type support rail girder construction |
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| CN106283940A true CN106283940A (en) | 2017-01-04 |
| CN106283940B CN106283940B (en) | 2017-10-13 |
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| CN206127737U (en) * | 2016-09-15 | 2017-04-26 | 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 detached pier column type support rail girder construction |
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| CN106283940B (en) | 2017-10-13 |
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