CN106283973A - Medium-and low-speed maglev traffic engineering two-wire excavation location detached pier pillar support rail beam transition section structure - Google Patents
Medium-and low-speed maglev traffic engineering two-wire excavation location detached pier pillar support rail beam transition section structure Download PDFInfo
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- CN106283973A CN106283973A CN201610826330.5A CN201610826330A CN106283973A CN 106283973 A CN106283973 A CN 106283973A CN 201610826330 A CN201610826330 A CN 201610826330A CN 106283973 A CN106283973 A CN 106283973A
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- support rail
- rail beam
- 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
- E01B25/00—Tracks for special kinds of railways
- E01B25/30—Tracks for magnetic suspension or levitation vehicles
- E01B25/305—Rails or supporting constructions
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/008—Drainage of track
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
- E01B2/006—Deep foundation of tracks
-
- 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
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (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 two-wire excavation location detached pier pillar support rail beam transition section structure, including pile foundation carrying structure, armored concrete support rail beam base plate, two placing of reinforcement concrete beam-type structures, support rail beam both sides backfill filler, bridge abutment and headwall, described armored concrete support rail beam base plate is accepted on the top of pile foundation carrying structure；Described reinforced concrete beam type structure is accepted on the top of armored concrete support rail beam base plate；Being provided with first row ditch by support rail beam both sides backfill filler, first row ditch is provided with the first weathering away from described in the side of support rail beam both sides backfill filler.Long-time stability of the present invention are more preferable, both met the deformation of support rail girder construction and the high request of settlement after construction, meet again the requirement of the controllability of bedding long-time stability, durability and construction quality, effectively realize magnetic suspension elevated structure and the low smoothly transition putting line transition section F rail.
Description
Technical field
The invention belongs to that middle low speed magnetic suspension traffic engineering is low puts Line technology field, more particularly, to middle low speed magnetic
Floating traffic engineering two-wire 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 relevant elevated structure and the low research put in terms of line transition segment structure and
Application.
In wheel rail high speed railway, there is substantial amounts of bridge changeover portion roadbed, high-speed railway changeover portion roadbed uses mostly
Trapezium structure, have employed cement stabilized graded macabam in trapezoidal scope and fills, and have employed than the non-higher compacting of changeover portion roadbed
Requirement.During built high-speed railway operation, bridge changeover portion scope, often there is non-fragment orbit protuberance, gap, grout
Etc. disease.The reason of this disease, is owing to changeover portion roadbed remains by the earth structure of rock and soil constitution, changeover portion mostly
After roadbed is laid a railway track, still can occur necessarily to settle, there is poor (the specification permission settlement after construction of certain settlement after construction with bridge abutment
Difference is not more than 5mm), owing to high-speed railway uses seamless track steel rail, in the range of specification allows settlement after construction difference, have no effect on
Normal operation, but the diseases such as non-fragment orbit protuberance, gap, grout can be caused, need timely repair and maintenance.
The F rail of medium-and low-speed maglev traffic line is to be used fishplate bar scene to be spliced by a short rail successively, and leaves between rail
Seam, meets the ride comfort of the F rail of magnetic-levitation train even running requirement, and under rail to be leaned on, works ensures.Low put circuit location,
Under support rail beam, basis is by the earth structure of rock and soil constitution, is affected by the factor such as landform, geological conditions, and quality is the most easily-controllable
System, is easily generated differential settlement under load and various factor of natural environment effect, can occur unavoidably and elevated structure bridge bridge
The settlement after construction that platform is inconsistent, produces settlement after construction poor, and low circuit of putting occurs in that differential settlement with bridge abutment position, necessarily affects
The ride comfort of F rail, in some instances it may even be possible to cause F rail to produce the problem such as faulting of slab ends, deformation, time serious, will affect the normal fortune of maglev vehicle
Battalion.
Summary of the invention
For disadvantages described above or the Improvement requirement of prior art, the invention provides medium-and low-speed maglev traffic engineering two-wire and dig
Side's location detached pier pillar support rail beam transition section structure, this structure should meet elevated structure and the low rigidity put between circuit with
Sedimentation transition, it is ensured that magnetic suspension traffic engineering elevated structure and the low ride comfort requirement putting line transition section F rail, meets magnetic again
Floating traffic engineering is low puts the intensity of line transition section sub rail foundation, long-time stability requirement, and construction quality controllability is strong.
For achieving the above object, the invention provides medium-and low-speed maglev traffic engineering two-wire excavation location detached pier pillar to hold
Beam-and-rail transition section structure, it is characterised in that include that pile foundation carries structure, armored concrete support rail beam base plate, two placing of reinforcement coagulations
Soil girder structure, support rail beam both sides backfill filler, bridge abutment and headwall, 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；
Reinforced concrete beam type structure described in two rows is accepted at the top of described armored concrete support rail beam base plate, and described
The top of pile foundation carrying structure embeds described armored concrete support rail beam base plate and just connects with it, at the bottom of described armored concrete support rail beam
Plate distinguishes formed by integrally casting molding with often arranging described reinforced concrete beam type structure, thus collectively forms armored concrete support rail beam；
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 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 first row ditch, described first row ditch is provided with the first draining away from the side of described support rail beam both sides backfill filler
Slope；
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 that lateral stiffness produces；
One end of described armored concrete support rail beam base plate is overlapped on described bridge abutment, and both are by pin even
Connect release longitudinal restraint, and limit lateral displacement；
The both sides of one end that described armored concrete support rail beam base plate is overlapped on described bridge abutment are respectively provided with described end
Wall, and the headwall of described every side backfills filler with the support rail beam both sides of respective side respectively and abuts, and protects described support rail for gear
Beam both sides backfill filler；
Being provided with second row ditch by described headwall, described second row ditch is provided with second away from the side of described headwall
Weathering.
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.
Preferably, between described line, the cross fall of weathering section is 3%～5%, and head fall is not less than 2 ‰.
Preferably, described armored concrete support rail beam base plate is overlapped on one end of described bridge abutment and described bridge abutment
Between be provided with wear-resisting sliding layer.
Preferably, described pin includes pre-buried connection reinforcing bar, Colophonium hemp cut and rustless steel sleeve pipe, described pre-buried connection reinforcing bar
It is positioned at described rustless steel sleeve pipe and is fixedly installed described Colophonium hemp cut between the two.
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) armored concrete support rail beam base plate is overlapped on bridge abutment near one end of elevated bridge, passes through pin
Connect, it is to avoid the sedimentation faulting of slab ends that causes because of measures of foundation treatment difference between the two, it is ensured that magnetic float F rail low put circuit with
Bridge abutment connected position will not produce faulting of slab ends, effectively realizes magnetic suspension traffic engineering elevated structure and puts the flat of circuit F rail with low
Along transition.
(2) armored concrete support rail beam use reinforced concrete soil scene one-piece casting, in order to directly take on track load 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, knot
Structure reliability is high.
(3) 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 and structural reliability are more excellent.
(4) 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.
(5) 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.
Accompanying drawing explanation
Fig. 1 is 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 that in the present invention, armored concrete support rail beam base plate is overlapped on the floor map on bridge abutment；
Fig. 5 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. 5, medium-and low-speed maglev traffic engineering two-wire excavation location detached pier pillar support rail beam changeover portion is tied
Structure, carries structure 3, armored concrete support rail beam base plate 2, two placing of reinforcement concrete beam-type structure 1, support rail beam both sides including pile foundation
Backfill filler 4, bridge abutment 12 and headwall 13, 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；
Reinforced concrete beam type structure 1 described in two rows, and institute are accepted in the top of described armored concrete support rail beam base plate 2
The top described armored concrete support rail beam base plate 2 of embedding stating pile foundation carrying structure 3 just connects with it, described armored concrete support rail
Beam base plate 2 with often arrange described reinforced concrete beam type structure 1 formed by integrally casting molding, thus collectively form armored concrete support rail beam
9；
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 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 other are provided with first row ditch 7, and described first row ditch 7 is provided with the away from the side of described support rail beam both sides backfill filler 4
One weathering 8；
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
The adverse effect produced to, vertical and horizontal rigidity；
One end of described armored concrete support rail beam base plate 2 is overlapped on described bridge abutment 12, and both pass through pin
Follow closely 15 Connection Release longitudinal restraints, and limit lateral displacement；
The both sides of one end that described armored concrete support rail beam base plate 2 is overlapped on described bridge abutment 12 are respectively provided with described
Headwall 13, and the headwall 13 of described every side backfills filler 4 with the support rail beam both sides of respective side respectively and abuts, and protects institute for gear
State support rail beam both sides backfill filler 4；
Described headwall 13 is other is provided with second row ditch 17, and described second row ditch 17 sets away from the side of described headwall 13
It is equipped with the second weathering 18.
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.
Armored concrete support rail beam 9 agent structure of the present invention all uses reinforced concrete soil scene one-piece casting, reinforced concrete
Soil support rail beam 9 girder structure is in order to directly take on track load and the magnetic-levitation train load of track transmission, then will conduct oneself with dignity and top
Load passes to pile foundation rigidly connected with it carrying structure 3, and structural reliability is high.Pile foundation carrying structure 3 uses reinforced concrete
Earth boring auger hole pouring pile makes, and transverse direction and longitudinal direction is made up of multiple rows of reinforced concrete bored pile, and vertical cross stiffness is big；And pile foundation
Going deep into reliable supporting course 8, when between the certain sedimentation of embankment generation and armored concrete support rail beam 9, generation is come to nothing, pile foundation carrying is tied
Structure 3 still can bear negative friction and provide stronger bearing capacity, has stronger longitudinal, vertical and lateral stability.Two lines
Reinforced concrete beam type structure is connected by shared base plate, further increases lateral stiffness and the stability of structure.
Armored concrete support rail beam base plate 2 one end of armored concrete support rail beam 9 is overlapped on bridge abutment 12, and the two leads to
Cross pin 15 to connect, the most releasable temperature stress of pin 15, it is achieved support rail beam stretches longitudinal, laterally limits support rail beam
Displacement, improves the lateral stability of structure.One end of support rail beam overlaps with bridge abutment 12, makes low to put circuit support rail beam and bridge
The sedimentation of abutment 12 lap position is consistent, it is to avoid bridge abutment 12 and low putting produce faulting of slab ends sedimentation between circuit support rail girder construction；Low
Putting circuit armored concrete support rail beam base plate 2 other end to be embedded in and stable low put in line construction, its sedimentation puts circuit with low
Structure is consistent, due to low put line construction through basement process and after filling compacting sedimentation value be in controlled range, therefore, support rail
Sedimentation between beam two ends is at bridge abutment 12 and low puts between line construction, close to linear change, it is achieved thereby that overhead
Bridge structure and the low sedimentation transition put between line construction, it also avoid faulting of slab ends, the smooth-going of changeover portion scope F rail be effectively ensured
Property.
Wear-resisting sliding layer 16 is arranged between armored concrete support rail beam base plate 2 and bridge abutment 12, by resistance to mill sliding
The effect of layer 16, can release the rotation that support rail beam is likely to occur under the load action such as relative settlement, temperature to a certain extent
Retrain, and the dynamic stress that magnetic-levitation train is transferred to bridge abutment 12 plays cushioning effect, it also avoid support rail beam and bridge abutment
Abrasion and stress between 12 are concentrated and are caused the partial pressing of structure to destroy.
The making step that the present invention is concrete is as follows:
(1) construction overhead bridge structure abutment, pours bridge abutment body concrete, abutment of constructing, and backfills abutment foundation foundation ditch；
The location of pin should be performed before abutment concreting and bury work underground；
(2) 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；Ground
After process completes, low after filling platform by changeover portion design requirement put under circuit support rail beam geotechnique basis, geotechnique under platform consequence beam-and-rail
Basis filling construction Tong Bu with abutment cone.According to each position wire feeding and compaction requirement when filling, changeover portion scope with
Non-changeover portion district is synchronous layered fills, and next layer fills and fills last layer after detection meets the requirements again, until armored concrete holds
At the absolute altitude of beam-and-rail base plate bottom surface；
(3) 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；
(4) it is on abutment laying high-strength wearable sliding layer at armored concrete support rail beam with abutment overlap joint, uses entirety
Template carries out formwork erection to armored concrete support rail beam, and each parts concrete reaches difference form removal after design strength, according to setting
Meter joint is long to be stood to joist 90, convex gear platform 91, armored concrete support rail beam base plate 2 and reinforced concrete beam type structure 1 merogenesis
Mould, intilted weathering is made in the face that backfills between reinforced concrete beam type structure and to carry out top layer waterproof by design requirement, complete
Become the installation of pin 15 built-in fitting such as grade, one-time-concreting molding, carry out all kinds of built-in fitting such as sleeper pedestal before pouring and connect reinforcing bar, lead
The location of trajectory bearing built-in fitting etc. and installation；
(5) it is on bridge abutment 12 lays wear-resisting sliding layer at armored concrete support rail beam 9 and bridge abutment 12 overlap joint
16, use integral mold plate that armored concrete support rail beam 9 carries out formwork erection, and one-time-concreting base plate and girder structure concrete, water
Location and the installation of built-in fitting (sleeper pedestal connects reinforcing bar, water conservancy diversion rail bearing built-in fitting etc.) is carried out before building；
(6) constructing and low put both sides, circuit bridge abutment 12 joint headwall 13, headwall 13 uses concrete one-piece casting to execute
Work, waits headwall 13 concrete to reach form removal after design strength, then puts circuit graded broken stone top by design requirement construction is low
The backfill layer in face, confining bed, associated satellite structures, by design and construction bridge abutment 12 cone end face confining bed etc., limit of constructing
Slope protection, drainage system etc..
(7) carry out low circuit and the elevated structure section of track put to lay and the installation of associated satellite engineering and construction, construct complete
After.
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 two-wire excavation location detached pier pillar support rail beam transition section structure, it is characterised in that bag
Include pile foundation carrying structure, armored concrete support rail beam base plate, two placing of reinforcement concrete beam-type structures, support rail beam both sides are filled out
Material, bridge abutment and headwall, 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
The top of structure embeds described armored concrete support rail beam base plate and just connects with it, and described armored concrete support rail beam base plate is with described
Reinforced concrete beam type structural integrity pours molding thus collectively forms armored concrete support rail beam；
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 first row ditch, described first row ditch is provided with the first 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 vertical by pin release
To constraint, and limit lateral displacement；
The both sides of one end that described armored concrete support rail beam base plate is overlapped on described bridge abutment are respectively provided with described headwall, and
And the headwall of described every side backfills filler with the support rail beam both sides of respective side respectively and abuts, protect described support rail beam both sides for gear
Backfill filler；
Being provided with second row ditch by described headwall, described second row ditch is provided with the second draining away from the side of described headwall
Slope.
Medium-and low-speed maglev traffic engineering two-wire excavation location the most according to claim 1 detached pier pillar support rail beam changeover portion
Structure, it is characterised in that 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.
Medium-and low-speed maglev traffic engineering two-wire excavation location the most according to claim 1 detached pier pillar support rail beam changeover portion
Structure, it is characterised in that pile foundation carrying structure described in all these is ranks arrangements.
Medium-and low-speed maglev traffic engineering two-wire excavation location the most according to claim 1 detached pier pillar support rail beam changeover portion
Structure, it is characterised in that between described line, the cross fall of weathering section is 3%～5%, head fall is not less than 2 ‰.
Medium-and low-speed maglev traffic engineering two-wire excavation location the most according to claim 1 detached pier pillar support rail beam changeover portion
Structure, it is characterised in that described armored concrete support rail beam base plate is overlapped on one end of described bridge abutment and described bridge bridge
Wear-resisting sliding layer it is provided with between platform.
Medium-and low-speed maglev traffic engineering two-wire excavation location the most according to claim 1 detached pier pillar support rail beam changeover portion
Structure, it is characterised in that described pin includes pre-buried connection reinforcing bar, Colophonium hemp cut and rustless steel sleeve pipe, described pre-buried connection steel
Muscle is positioned at described rustless steel sleeve pipe and is fixedly installed described Colophonium hemp cut between the two.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642010A (en) * | 2017-11-06 | 2018-01-30 | 中国铁路设计集团有限公司 | Medium-and low-speed maglev traffic system straightway support rail beam |
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