CN106283948B - Medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation joist type support rail girder construction - Google Patents
Medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation joist type support rail girder construction Download PDFInfo
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- CN106283948B CN106283948B CN201610825061.0A CN201610825061A CN106283948B CN 106283948 B CN106283948 B CN 106283948B CN 201610825061 A CN201610825061 A CN 201610825061A CN 106283948 B CN106283948 B CN 106283948B
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- support rail
- rail beam
- pile foundation
- bottom plate
- armored concrete
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
- E01B2/006—Deep foundation of tracks
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/008—Drainage of track
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/30—Tracks for magnetic suspension or levitation vehicles
- E01B25/305—Rails or supporting constructions
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/34—Foundations for sinking or earthquake territories
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/07—Drainage
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/08—Deep or vertical foundation
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/09—Ballastless systems
Abstract
Line technology field is put the invention belongs to middle low speed magnetic suspension traffic engineering is low, and disclose medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation joist type support rail girder construction, including roadbed filling under pile foundation bearing structure, reinforced concrete supporting beam, armored concrete support rail beam bottom plate, two placing of reinforcement concrete beam-type structures, support rail beam and support rail beam both sides backfill filler, pile foundation bearing structure is provided with more；Accept the reinforced concrete beam type structure in the top of armored concrete support rail beam bottom plate；Support rail beam both sides backfill filler is accepted by roadbed filling under the support rail beam.The present invention can avoid traditional low the defects of putting circuit support rail girder construction, long-time stability are more preferable, and its both meet in low speed magnetic suspension traffic engineering track structure to support rail girder construction deformation and settlement after construction high request, meet the requirement of the controllability of bedding long-time stability, durability and construction quality again, and economy is more preferably.
Description
Technical field
Line technology field is put the invention belongs to middle low speed magnetic suspension traffic engineering is low, more particularly, to middle low speed magnetic
Floating traffic engineering two-wire embankment location support rail girder construction pattern.
Background technology
Middle low speed magnetic suspension track traffic belongs to a kind of novel traffic mode, and achievement in research both domestic and external is less, the whole world
The circuit for opening operation is even more minority.The middle low speed magnetic suspension railway business that only in March, 2005, Japan's construction was opened at present is transported
The middle low speed magnetic suspension railway business operating line that line-the East Hillside Line and in June, 2014, South Korea opened.And the middle low speed of China
Magnetic suspension traffic only has 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 based on elevated structure, it is rarely seen about the low research and application put in terms of circuit support rail girder construction.
Middle low speed magnetic suspension hang traffic civil engineering part mainly comprising bridge, it is low put circuit, station and rolling stock section, it is low to put circuit
It is made up of roadbed under the section of track, support rail beam and 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, be oriented to, drive and braking being required for what is completed on support rail beam.Magnetic
Aerotrain is very high to line construction deformation requirements, because the deformation of structure very little may influence comfortableness even prestige by bus
Traffic safety is coerced, so the design of support rail beam is particularly significant.
Existing support rail girder construction is applied has problems with middle low speed magnetic suspension traffic low put on circuit：
(1) existing low circuit support rail girder construction of putting is arranged on embankment earth structure, embankment earth structure by
Filler fills compacting and formed, and compaction quality is difficult to control, and the later stage easily deforms, and influences the integral rigidity of structure, and after work
Sedimentation is unmanageable.
(2) the low settlement after construction requirement for putting circuit support rail girder construction to roadbed and ground is high, and is routed through the ground in region
Matter condition is typically all complicated and changeable, therefore also needs to carry out consolidation process, roadbed filling slope groundwork to ground simultaneously
Area increase is reinforced, cost is high, long in time limit；And basement process belongs to disguised engineering, arranged using the reinforced soft soil ground of routine
Apply and reinforced, construction quality is difficult to control.
(3) there is vulnerability because filler fills the low circuit earth structure of putting for being compacted form, and construction quality is not easy
Control, relatively easily produces differential settlement, causes bedding vertical and horizontal bad stability under support rail beam, so that support rail beam
The resistance to overturning of structure is damaged.
The low circuit support rail beam of putting of magnetic suspension is higher to post-construction settlement of subgrade, bedding long-time stability and life requirement, when
When circuit is located at foundation stabilization location, traditional support rail girder construction pattern is taken construction period length to be present, construction quality is not easily-controllable
System, the defects of whole structural stability is poor and less economical.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the invention provides medium-and low-speed maglev traffic engineering two-wire to fill out
Square location pile foundation joist type support rail girder construction, traditional low the defects of putting circuit support rail girder construction can be avoided, construction quality is easier
Control, long-time stability are more preferable, and its both meet in low speed magnetic suspension traffic engineering track structure to support rail girder construction deform
With the high request of settlement after construction, meet the requirement of the controllability of bedding long-time stability, durability and construction quality again, and it is economical
Property is more preferably.
To achieve the above object, it is proposed, according to the invention, provide medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation support
Beam type support rail girder construction, it is characterised in that including pile foundation bearing structure, reinforced concrete supporting beam, armored concrete support rail beam bottom
Roadbed filling and support rail beam both sides backfill filler under plate, two placing of reinforcement concrete beam-type structures, support rail beam, wherein,
The pile foundation bearing structure is provided with more, and the every pile foundation bearing structure is vertically arranged, and every institute
Accept the reinforced concrete supporting beam in the top for stating pile foundation bearing structure；
The reinforced concrete supporting beam accepts the armored concrete support rail beam bottom plate；
Accept the reinforced concrete beam type structure in the top of the armored concrete support rail beam bottom plate；
The top of the pile foundation bearing structure is embedded in the reinforced concrete supporting beam and its rigid connection, the armored concrete support
Beam and the armored concrete support rail beam bottom plate rigid connection or overlap joint, the armored concrete support rail beam bottom plate and the reinforced concrete
Native girder structure is integrally formed so as to collectively form armored concrete support rail beam；
It is provided with the reinforced concrete supporting beam for limiting the armored concrete support rail beam bottom plate lateral displacement
Convex block machine；
Wired weathering section be set between reinforced concrete beam type structure described in two rows, and weathering section has between the line
Cross fall and head fall, for by current introduce two adjacent sections armored concrete support rail beam bottom plate internode expansion joint and then
Current are discharged；
Roadbed filling is arranged between shallow layer reinforcement area and the armored concrete support rail beam bottom plate under the support rail beam, with
It is flat for providing construction for the armored concrete support rail beam bottom plate, reinforced concrete supporting beam and support rail beam both sides backfill filler
Platform, and provide lateral support for the pile foundation bearing structure；Wherein, the shallow layer reinforcement area is arranged on the superficial of soft stratum
Layer, and roadbed filling and the vertical consistency of the reinforced concrete beam type structure under the shallow layer reinforcement area, the support rail beam；
The support rail beam both sides backfill filler is accepted by roadbed filling under the support rail beam, and the support rail beam both sides
Backfill filler props up the both sides of the armored concrete support rail beam bottom plate, to play protection to the armored concrete support rail beam bottom plate
The transverse shifting of the armored concrete support rail beam bottom plate is acted on and constrained, and maintenance passage is provided；
Roadbed filling and support rail beam both sides backfill filler collectively form filler filling body under the support rail beam, described to fill out
Material filling body both sides are provided with weathering；
The lower end of the every pile foundation bearing structure sequentially passes through roadbed filling under the support rail beam, the shallow layer reinforcement area
Stretched into after the soft stratum in supporting course, so that when soft stratum produces sedimentation, the pile foundation bearing structure can bear to bear
Frictional resistance, so as to provide stable bearing capacity to armored concrete support rail beam bottom plate and reinforced concrete beam type structure, to reduce
Because the sedimentation of filler filling body is to adverse effect caused by the vertical of armored concrete support rail beam, vertical and horizontal rigidity.
Preferably, the pile foundation bearing structure is cast-in-situ bored pile, reinforced concrete supporting beam and armored concrete support rail beam
Bottom plate rigid connection or overlap joint, with pile foundation bearing structure rigid connection.Overlapped in the position of support rail beam internode seam using pin, remaining position is adopted
Use rigid connection.
Preferably, the height and the height phase of the armored concrete support rail beam bottom plate of the support rail beam side backfill filler
Deng.
Preferably, all these described pile foundation bearing structures are arranged in ranks.
Preferably, the cross fall of weathering section is 3%~5% between the line, 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 can obtain down and show
Beneficial effect：
(1) armored concrete support rail beam bottom plate of the invention, reinforced concrete beam type structure are showed using armored concrete
Field one-piece casting, the two forms integral reinforced concrete structure to directly take on the magnetic-levitation train of track load and track transmission
Load, then deadweight and upper load are passed to and its rigidly connected pile foundation bearing structure, structural reliability height.
(2) pile foundation bearing structure of the invention is goed deep into supporting course, when embankment produces certain sedimentation, pile foundation bearing structure according to
Can so negative friction be born and stronger bearing capacity is provided, avoided caused by filling compaction and foundation stabilization quality are whard to control
Differential settlement is vertical to support rail beam, the influence of vertical and horizontal rigidity, structure vertical cross stiffness and structural reliability are more excellent.
(3) circuit soft soil zone is put low, needs the superficial layer progress to soft stratum necessary according to embankment stability
Reinforcing, its reinforcement depth controls by embankment stability, and tradition during compared to by settling and stablize Two indices control is solely
For base reinforcing mode, shallow layer reinforcement area reinforcement depth is small, and roadbed reclamation and roadbed can be effectively controlled with reference to pile foundation bearing structure
Settlement after construction.Non- soft soil zone can more avoid the stiffening basic ground of caused wide area after embankment slope, and
Pile foundation bearing structure construction quality is more easy to control, can effectively control construction quality, investment reduction, shorten the duration, has obvious
Technology and economic advantages.
(4) while by two placing of reinforcement concrete beam-type structures of two-wire by armored concrete support rail beam floor combination one
Rise, the lateral stiffness of reinforced concrete beam type structure can be effectively increased, left and right two is saved reinforced concrete beam type structure and be placed in
On rigidity identical armored concrete support rail beam bottom plate, the lateral stability of reinforced concrete beam type structure can be effectively increased,
The relative settlement between reinforced concrete beam type structure is controlled, is also beneficial to maintenance and maintenance during operation, measure is simple, easily applies
Work, cost save, effect is good.
(5) reinforced concrete supporting beam that pile foundation bearing structure and armored concrete support rail beam bottom plate are set, can subtract significantly
The stress concentration phenomenon of armored concrete support rail beam bottom plate at small pile foundation bearing structure；Further, since reinforced concrete supporting beam
Lateral connection acts on, and also increases the lateral stiffness of structure and the ability of resistance differential settlement deformation, can reduce transverse pile foundation
Quantity, reduce investment.
Brief description of the drawings
Fig. 1 is the schematic cross-sectional view of the present invention；
Fig. 2 is the schematic longitudinal section of the present invention；
Fig. 3 is the distribution schematic diagram of pile foundation bearing structure of the present invention；
Fig. 4 is pile foundation reinforced concrete supporting beam of the present invention and armored concrete support rail beam bottom plate rigid connection connection diagram.
Fig. 5 is pile foundation reinforced concrete supporting beam of the present invention and armored concrete support rail beam bottom plate overlap joint connection diagram.
Fig. 6 is the cross-sectional view of pin in the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Conflict can is not formed each other to be mutually combined.
1~Fig. 6 of reference picture, medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation joist type support rail girder construction, including
Pile foundation bearing structure 3, reinforced concrete supporting beam 90, armored concrete support rail beam bottom plate 2, two placing of reinforcement concrete beam-type structures 1,
Roadbed filling 5 and support rail beam both sides backfill filler 4 under support rail beam, wherein,
The pile foundation bearing structure 3 is provided with more, and the every pile foundation bearing structure 3 is vertically arranged, and every
Accept the reinforced concrete supporting beam 90 in the top of the pile foundation bearing structure 3；
The reinforced concrete supporting beam 90 accepts the armored concrete support rail beam bottom plate 2；
Accept the reinforced concrete beam type structure 1 in the top of the armored concrete support rail beam bottom plate 2；
The top of the pile foundation bearing structure 3 is embedded in the reinforced concrete supporting beam 90 and its rigid connection, the reinforced concrete
Native joist 90 and the rigid connection of armored concrete support rail beam bottom plate 2 or overlap joint, the armored concrete support rail beam bottom plate 2 with it is described
Reinforced concrete beam type structure 1 is integrally formed so as to collectively form armored concrete support rail beam 9；
It is provided with the reinforced concrete supporting beam 90 for limiting the lateral displacement of armored concrete support rail beam bottom plate 2
Convex block machine 91；
Wired weathering section be set between reinforced concrete beam type structure 1 described in two rows, and weathering section has between the line
There are cross fall and head fall, for current are introduced into the internode expansion joint of two adjacent sections armored concrete support rail beam bottom plate 2
And then current are discharged；The cross fall of weathering section is 3%~5%, more preferably 4% between the line, weathering section between line
Head fall be not less than 2 ‰, in order to draining.
Under the support rail beam roadbed filling 5 be arranged on shallow layer reinforcement area 6 and the armored concrete support rail beam bottom plate 2 it
Between, for backfilling filler 4 for the armored concrete support rail beam bottom plate 2 and support rail beam both sides and providing construction platform, and it is institute
State pile foundation bearing structure 3 and lateral support is provided；Wherein, the shallow layer reinforcement area 6 is arranged on the superficial floor of soft stratum 7, and
Roadbed filling 5 and the vertical consistency of the reinforced concrete beam type structure 1 under the shallow layer reinforcement area 6, the support rail beam；
The support rail beam both sides backfill filler 4 is accepted by roadbed filling 5 under the support rail beam, and the support rail beam two
Side backfill filler 4 props up the both sides of the armored concrete support rail beam bottom plate 2, with to the armored concrete support rail beam bottom plate 2
The transverse shifting of the armored concrete support rail beam bottom plate 2 is shielded and constrained, and maintenance passage is provided；
Roadbed filling 5 and support rail beam side backfill filler 4 collectively form filler filling body 10 under the support rail beam, described
The both sides of filler filling body 10 are provided with weathering 11；
The lower end of the every pile foundation bearing structure 3 sequentially passes through roadbed filling 5, the shallow layer reinforcement under the support rail beam
Stretched into after area 6 and the soft stratum 7 in supporting course 8, so that when soft stratum 7 produces sedimentation, the pile foundation bearing structure 3 can
Negative friction is born, so as to provide stable carrying to armored concrete support rail beam bottom plate 2 and reinforced concrete beam type structure 1
Power, with reduce because filler filling body 10 sedimentation to caused by the vertical of armored concrete support rail beam 9, vertical and horizontal rigidity not
Profit influences.
Further, the pile foundation bearing structure 3 is cast-in-situ bored pile, reinforced concrete supporting beam and armored concrete support rail beam
Bottom plate rigid connection or overlap joint, with pile foundation bearing structure rigid connection.Mixed in the position reinforced concrete supporting beam of support rail beam internode seam with reinforcing bar
Coagulate native support rail beam bottom plate to overlap using pin, remaining position uses rigid connection.
The pin 10 includes pre-buried connection reinforcing bar 10.1, pitch hemp cut 10.2 and stainless steel sleeve pipe 10.3, described pre-buried
Connection reinforcing bar 10.1 is located in the stainless steel sleeve pipe 10.3 and the pitch hemp cut 10.2 is fixedly installed between the two.
The height of the support rail beam both sides backfill filler 4 is equal with the height of the armored concrete support rail beam bottom plate 2, institute
These the described pile foundation bearing structures 3 having are arranged in ranks.
The low circuit of putting of low speed magnetic suspension traffic engineering is tight to post-construction settlement of subgrade requirement during the structural shape can be solved effectively
Lattice, take traditional foundation stabilization measure caused by engineering is huge, investment is big, long in time limit, and basement process and embankment
Construction quality is whard to control, bedding long-time stability and the problem of poor durability, so as to improve low circuit support rail girder construction of putting
Reliability, reduce the engineering risk of traditional structure pattern.
The armored concrete support rail beam 9 of the present invention uses reinforced concrete soil scene one-piece casting, to directly take on track lotus
Carry and track transmission magnetic-levitation train load, then will deadweight and upper load pass to and its rigidly connected pile foundation bearing structure
3, structural reliability is high, can save caused large area stiffening basic ground after traditional embankment slope.
Pile foundation bearing structure 3 uses cast-in-situ bored pile, and transverse direction and longitudinal direction, which has, is arranged with more reinforced concrete drillings fillings
Stake is noted, vertical and horizontal rigidity is big；And pile foundation bearing structure 3 gos deep into supporting course 8, when soft stratum 7 produces sedimentation, pile foundation carrying
Structure 3 can still bear negative friction and provide stronger bearing capacity to armored concrete support rail beam bottom plate 2.
The reinforced concrete supporting beam 90 that pile foundation bearing structure 3 and armored concrete support rail beam bottom plate 2 are set, can subtract significantly
The stress concentration phenomenon of armored concrete support rail beam bottom plate 2 at small pile foundation bearing structure 3；Further, since reinforced concrete supporting beam
90 lateral connection effect, the lateral stiffness of structure and the ability of resistance differential settlement deformation are also increased, transverse direction can be reduced
The quantity of pile foundation, reduce investment.
Simultaneously by two placing of reinforcement concrete beam-type structures of two-wire by armored concrete support rail beam floor combination together,
The lateral stiffness of reinforced concrete beam type structure can be effectively increased, left and right two is saved reinforced concrete beam type structure and is placed in rigidity
On identical armored concrete support rail beam bottom plate, the lateral stability of reinforced concrete beam type structure can be effectively increased, is controlled
Relative settlement between reinforced concrete beam type structure, is also beneficial to maintenance and maintenance during operation, measure is simple, easily construction,
Cost saves, effect is good.
It is low when putting circuit and passing through soft soil zone, should according to embankment stability need to carry out ground superficial layer it is necessary plus
Gu form shallow layer reinforcement area 6.The reinforcement depth in shallow layer reinforcement area 6 is controlled by embankment stability, and its reinforcement depth should be according to embankment
Raising, foundation condition are determined by stability calculation.Compared to by settling and stablizing traditional single ground during Two indices control
For reinforcing mode, the reinforcement depth of shallow layer reinforcement area 6 is small, and roadbed reclamation and roadbed can be effectively controlled with reference to pile foundation bearing structure 3
Settlement after construction.By contrast, the new structure foundation stabilization quantity is small, and investment is small, and more conducively construction quality and settlement after construction
Control, and save cost and shorten the duration.
The making step of the present invention is as follows：
(1) smooth construction site, necessary shallow layer foundation consolidation process is carried out according to design requirement, forms shallow layer reinforcement area
6, placement in layers is then required according to embankment and is densified to armored concrete support rail beam bottom plate bottom surface absolute altitude；
(2) in armored concrete support rail beam bottom plate bottom surface, absolute altitude is in embankment subgrade cross section, the construction of vertical section direction is bored
Hole pouring pile, i.e. pile foundation bearing structure 3, drilled pile construction should use and small construction technology disturbed to railway embankment, if necessary
Steel pile casting is set in embankment altitude range or draws hole；After cast-in-situ bored pile reaches desired strength, cut by code requirement
Except pile crown, assembling reinforcement concrete support rail beam bottom plate and the connection reinforcing bar with stake；
(3) according to design attitude to reinforced concrete supporting beam 90, the formwork erection of convex block machine 91, one-time-concreting shaping, before pouring
Carry out all kinds of built-in fittings such as pin 10 and positioning and installation with the connection reinforcing bar of pile foundation, concrete are removed after reaching design strength
Template；
(4) grown according to design section to armored concrete support rail beam bottom plate 2 and the merogenesis formwork erection of reinforced concrete beam type structure 1,
Between reinforced concrete beam type structure backfill face make intilted transverse drainage slope and and longitudinal drainage slope, done by design requirement
Good top layer waterproof, one-time-concreting shaping, it is pre-buried that all kinds of built-in fittings such as sleeper pedestal connection reinforcing bar, water conservancy diversion rail bearing are carried out before pouring
The positioning and installation of part, pile foundation connection reinforcing bar etc.；
(4) each part concrete distinguishes form removal after reaching design strength, then by armored concrete support rail beam bottom plate 2
Bedding filler backfills in thickness range, and backfill face makes outward-dipping weathering and carries out top layer waterproof i.e. by design requirement
Can.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles of the invention etc., all should be included
Within protection scope of the present invention.
Claims (7)
1. medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation joist type support rail girder construction, it is characterised in that including pile foundation
Under bearing structure, reinforced concrete supporting beam, armored concrete support rail beam bottom plate, two placing of reinforcement concrete beam-type structures, support rail beam
Roadbed filling and support rail beam both sides backfill filler, wherein,
The pile foundation bearing structure is provided with more, and the every pile foundation bearing structure is vertically arranged, and the every stake
Accept the reinforced concrete supporting beam in the top of base bearing structure；
The reinforced concrete supporting beam accepts the armored concrete support rail beam bottom plate；
Accept the reinforced concrete beam type structure in the top of the armored concrete support rail beam bottom plate；
The top of the pile foundation bearing structure is embedded in the reinforced concrete supporting beam and its rigid connection, the reinforced concrete supporting beam with
The armored concrete support rail beam bottom plate rigid connection or overlap joint, the armored concrete support rail beam bottom plate and the reinforced beam
Formula structural integrity is molded so as to collectively form armored concrete support rail beam；
The convex for limiting the armored concrete support rail beam bottom plate lateral displacement is provided with the reinforced concrete supporting beam
Block machine；
Wired weathering section be set between reinforced concrete beam type structure described in two rows, and weathering section has laterally between the line
The gradient and head fall, for current are introduced into two adjacent sections armored concrete support rail beam bottom plate internode expansion joint and then by water
Stream discharge；
Roadbed filling is arranged between shallow layer reinforcement area and the armored concrete support rail beam bottom plate under the support rail beam, for
Filler is backfilled for the armored concrete support rail beam bottom plate, reinforced concrete supporting beam and support rail beam both sides, and construction platform is provided, and
Lateral support is provided for the pile foundation bearing structure；Wherein, the shallow layer reinforcement area is arranged on the superficial floor of soft stratum, and
Roadbed filling and the reinforced concrete beam type structure vertical consistency under the shallow layer reinforcement area, the support rail beam；
The support rail beam both sides backfill filler is accepted by roadbed filling under the support rail beam, and the support rail beam both sides backfill
Filler props up the both sides of the armored concrete support rail beam bottom plate, to be shielded to the armored concrete support rail beam bottom plate
And the transverse shifting of the constraint armored concrete support rail beam bottom plate, and maintenance passage is provided；
Roadbed filling and support rail beam side backfill filler collectively form filler filling body under the support rail beam, and the filler fills
Body both sides are provided with weathering；
The lower end of the every pile foundation bearing structure sequentially passes through roadbed filling under the support rail beam, the shallow layer reinforcement area and institute
Stretched into after stating soft stratum in supporting course, so that when soft stratum produces sedimentation, the pile foundation bearing structure can bear negative frictional resistance
Power, so as to provide stable bearing capacity to armored concrete support rail beam bottom plate and reinforced concrete beam type structure, to reduce because filling out
Expect the sedimentation of filling body to adverse effect caused by the vertical of armored concrete support rail beam, vertical and horizontal rigidity.
2. pile foundation joist type support rail girder construction in medium-and low-speed maglev traffic engineering two-wire embankment location according to claim 1,
Characterized in that, the pile foundation bearing structure is cast-in-situ bored pile, reinforced concrete supporting beam and armored concrete support rail beam bottom plate
Rigid connection or overlap joint, with pile foundation bearing structure rigid connection.
3. pile foundation joist type support rail girder construction in medium-and low-speed maglev traffic engineering two-wire embankment location according to claim 1,
Characterized in that, the position reinforced concrete supporting beam in support rail beam internode seam is taken with armored concrete support rail beam bottom plate using pin
Connect, remaining position uses rigid connection.
4. pile foundation joist type support rail girder construction in medium-and low-speed maglev traffic engineering two-wire embankment location according to claim 1,
Characterized in that, the height of the support rail beam both sides backfill filler is equal with the height of the armored concrete support rail beam bottom plate.
5. pile foundation joist type support rail girder construction in medium-and low-speed maglev traffic engineering two-wire embankment location according to claim 1,
Characterized in that, all these described pile foundation bearing structures are arranged in ranks.
6. pile foundation joist type support rail girder construction in medium-and low-speed maglev traffic engineering two-wire embankment location according to claim 1,
Characterized in that, the cross fall of weathering section is 3%~5% between the line, head fall is not less than 2 ‰.
7. pile foundation joist type support rail girder construction in medium-and low-speed maglev traffic engineering two-wire embankment location according to claim 3,
Characterized in that, the pin includes pre-buried connection reinforcing bar, pitch hemp cut and stainless steel sleeve pipe, the pre-buried connection reinforcing bar is located at
The pitch hemp cut is fixedly installed in the stainless steel sleeve pipe and between the two.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825061.0A CN106283948B (en) | 2016-09-15 | 2016-09-15 | Medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation joist type support rail girder construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825061.0A CN106283948B (en) | 2016-09-15 | 2016-09-15 | Medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation joist type support rail girder construction |
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| Publication Number | Publication Date |
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| CN106283948A CN106283948A (en) | 2017-01-04 |
| CN106283948B true CN106283948B (en) | 2017-11-14 |
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| CN107119507A (en) * | 2017-06-28 | 2017-09-01 | 中铁第四勘察设计院集团有限公司 | It is a kind of can long distance water transfer high-speed railway |
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| JPH09209301A (en) * | 1996-02-05 | 1997-08-12 | Sekisui Chem Co Ltd | Magnetic interference preventing structure for magnetic levitation propulsive railroad |
| CN104480803B (en) * | 2014-12-11 | 2017-01-11 | 中铁第四勘察设计院集团有限公司 | Medium-and-low speed magnetic levitation railway low route continuous arched supporting rail beam structure and construction method |
| CN204455725U (en) * | 2015-03-02 | 2015-07-08 | 中铁第四勘察设计院集团有限公司 | A kind ofly put line construction for middle the low of low speed magnetic suspension traffic engineering embankment location |
| CN205259010U (en) * | 2015-12-17 | 2016-05-25 | 中铁第四勘察设计院集团有限公司 | Two line track roof beams of rail formula track traffic are embraced in magnetic suspension |
| CN206157483U (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 double -line location supporting beam of pile foundation formula support rail girder construction of filling |
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