CN106283967A - Medium-and low-speed maglev two-wire embankment location pile foundation joist framing type support rail beam transition section structure - Google Patents
Medium-and low-speed maglev two-wire embankment location pile foundation joist framing type support rail beam transition section structure Download PDFInfo
- Publication number
- CN106283967A CN106283967A CN201610825204.8A CN201610825204A CN106283967A CN 106283967 A CN106283967 A CN 106283967A CN 201610825204 A CN201610825204 A CN 201610825204A CN 106283967 A CN106283967 A CN 106283967A
- Authority
- CN
- China
- Prior art keywords
- support rail
- rail beam
- base plate
- pile foundation
- armored concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (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 two-wire embankment location pile foundation joist framing type support rail beam transition section structure, including roadbed filling, support rail beam both sides backfill filler, bridge abutment, trapezoidal filling body and headwall under pile foundation carrying structure, two placing of reinforcement concrete support rail beam base plates, reinforced concrete supporting beam, two placing of reinforcement concrete beam-type structures, support rail beam, pile foundation carrying structure is provided with many；Described reinforced concrete beam type structure is accepted on the top of armored concrete support rail beam base plate；Support rail beam both sides backfill filler is accepted by roadbed filling under described support rail beam.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 two-wire embankment 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 two-wire embankment location and divide
Width pile foundation joist type support rail beam transition section structure, had both met elevated structure and the low rigidity put between circuit and sedimentation transition, had protected
Card magnetic suspension traffic engineering elevated structure and the low ride comfort requirement putting line transition section F rail, meet again magnetic floating traffic engineering low
Put 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 two-wire embankment location framing pile foundation joist type support rail beam
Transition section structure, it is characterised in that include that pile foundation carries structure, two placing of reinforcement concrete support rail beam base plates, armored concrete torr
Roadbed filling under beam, two placing of reinforcement concrete beam-type structures, support rail beam, support rail beam both sides backfill filler, bridge abutment, trapezoidal fill out
Building body 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 reinforced concrete supporting beam is all accepted on the top stating pile foundation carrying structure；
Reinforced beam described in a corresponding row is accepted at the top often arranging described armored concrete support rail beam base plate respectively
Formula structure；
Described reinforced concrete beam type structure is accepted on the top of described armored concrete support rail beam base plate；
The top of described pile foundation carrying structure embeds described reinforced concrete supporting beam and just connects with it, described armored concrete torr
Beam has just connect with described armored concrete support rail beam base plate or has overlapped, described armored concrete support rail beam base plate and described reinforced concrete
Soil girder structure formed by integrally casting molding thus collectively form armored concrete support rail beam；
Described in two rows, between armored concrete support rail beam base plate, filler between support rail beam is set；
Described reinforced concrete supporting beam both sides are provided with for limiting described armored concrete support rail beam base plate lateral displacement
Convex gear platform；
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；
Under described support rail beam, roadbed filling is arranged between shallow layer reinforcement district and described armored concrete support rail beam base plate, with
For providing construction flat for described armored concrete support rail beam base plate, reinforced concrete supporting beam and support rail beam both sides backfill filler
Platform, and provide lateral support for described pile foundation carrying structure；Wherein, described shallow layer reinforcement district is arranged on the shallow table of soft stratum
Layer, and roadbed filling and the vertical consistency of described reinforced concrete beam type structure under described shallow layer reinforcement district, described support rail beam；
Described support rail beam both sides backfill filler is accepted by roadbed filling under described support rail beam, and described support rail beam both sides
Backfill filler props up the both sides of described armored concrete support rail beam base plate, so that described armored concrete support rail beam base plate is risen protection
Act on and retrain the transverse shifting of described armored concrete support rail beam base plate, and maintenance passage is provided；
Under described support rail beam roadbed filling and described support rail beam both sides backfill filler collectively form filler filling body, described in fill out
Material filling body both sides are provided with the first weathering；
The lower end of every described pile foundation carrying structure sequentially passes through roadbed filling under described support rail beam, described shallow layer reinforcement district
Stretching in supporting course with after described soft stratum, with when soft stratum produces sedimentation, described pile foundation carrying structure can be born negative
Frictional resistance, thus provide stable bearing capacity to armored concrete support rail beam base plate and reinforced concrete beam type structure, to reduce
The adverse effect vertical, the vertical and horizontal rigidity of armored concrete support rail beam produced because of the sedimentation of filler filling body；
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；
Described trapezoidal filling body is arranged between shallow layer reinforcement district and described armored concrete support rail beam base plate, and it is with described
Under support rail beam, roadbed filling abuts near one end of described bridge abutment, for accepting at the bottom of described armored concrete support rail beam
Plate, support rail beam both sides backfill filler and headwall；
Described trapezoidal filling body both sides are provided with second weathering consistent with the described first weathering gradient.
Preferably, described pile foundation carrying structure is cast-in-situ bored pile, and joist has just connect with support rail beam base plate or overlapped, with pile foundation
Carrying structure just connects.Position joist at support rail beam internode seam uses pin overlap joint with support rail beam base plate, and remaining position uses just
Connect.
Preferably, between described line, the cross fall of weathering section is 3%～5%, and head fall is not less than 2 ‰.
Preferably, described support rail beam both sides backfill the height of filler and the height phase of described armored concrete support rail beam base plate
Deng.
Preferably, pile foundation carrying structure described in all these is ranks arrangements.
Preferably, described trapezoidal filling body uses graded broken stone to mix cement production systD.
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 described Colophonium hemp cut is set 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) 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 embankment 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 filling compaction quality is wayward is uneven heavy
The fall impact on support rail beam vertical and horizontal rigidity, structure vertical cross stiffness is more excellent.
(3) put circuit soft soil zone low, according to embankment stability need the shallow top layer of soft stratum is carried out necessity
Reinforcing, its reinforcement depth is by embankment stability control, compared to by settling and stablizing tradition when Two indices controls solely
For base reinforcing mode, shallow layer reinforcement district reinforcement depth is little, can effectively control roadbed reclamation and roadbed in conjunction with pile foundation carrying structure
Settlement after construction.Non-soft soil zone more can avoid embankment to put the stiffening basic ground of the wide area produced behind slope, and
Pile foundation carrying structure construction quality is more easy to control, can effectively control construction quality, investment reduction, reduction of erection time, has significantly
Technology and economic advantages.
(4) reinforced concrete supporting beam that pile foundation carrying structure and reinforced concrete floor are arranged, can be greatly reduced pile foundation
The stress concentration phenomenon of armored concrete support rail beam base plate at carrying structure；Further, since the lateral connection effect of joist, also increase
Add lateral stiffness and the ability of opposing differential settlement deformation of structure, the quantity of transverse pile foundation can have been reduced, reduce investment.
(5) 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 line transition section F with low
The smoothly transition of rail.
(6) i.e. divide two rows to arrange by framing type setting armored concrete support rail beam base plate, can avoid making at train load
It is in multi-direction bending deformation and complex stress condition with lower support rail beam base plate, the support rail beam increasingly complex compared to tradition stress,
Framing pile foundation joist type support rail beam can reduce buckling deformation to support rail beam base plate and the impact of top girder structure.
Accompanying drawing explanation
Fig. 1 is the schematic longitudinal section of the present invention；
Fig. 2 is the generalized section in Fig. 1 along I-I line；
Fig. 3 is the generalized section in Fig. 1 along II-II line；
Fig. 4 is the generalized section in Fig. 1 along III-III line；
Fig. 5 is that in the present invention, armored concrete support rail beam base plate is overlapped on the floor map on bridge abutment；
Fig. 6 is that pile foundation joist of the present invention has just connect connection diagram with armored concrete support rail beam base plate.
Fig. 7 is that pile foundation joist of the present invention overlaps connection diagram with armored concrete support rail beam base plate.
Fig. 8 is the cross sectional representation of pin in the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.If additionally, technical characteristic involved in each embodiment of invention described below
The conflict of not constituting each other just can be mutually combined.
With reference to Fig. 1～Fig. 8, medium-and low-speed maglev two-wire embankment location framing pile foundation joist type support rail girder construction, including pile foundation
Carrying structure 3, reinforced concrete supporting beam 90, two placing of reinforcement concrete support rail beam base plate 2, two placing of reinforcement concrete beam-type structure 1,
Roadbed filling 5, support rail beam both sides backfill filler 4, bridge abutment 12, trapezoidal filling body 14 and headwall 13 under support rail beam, wherein,
Described pile foundation carrying structure 3 is provided with many, and every described pile foundation carrying structure 3 is all vertically arranged, and every
Described reinforced concrete supporting beam 90 is all accepted on the top of described pile foundation carrying structure 3；
Described reinforced concrete supporting beam 90 accepts described armored concrete support rail beam base plate 2；
Reinforced beam described in a corresponding row is accepted on the top often arranging described armored concrete support rail beam base plate 2 respectively
Formula structure 1；
The top of described pile foundation carrying structure 3 embeds described reinforced concrete supporting beam 90 and just connects with it, described reinforced concrete
Soil joist 90 has just connect with described armored concrete support rail beam base plate 2 or has overlapped, and described armored concrete support rail beam base plate 2 is with described
Reinforced concrete beam type structure 1 formed by integrally casting molding thus collectively form armored concrete support rail beam 9；
Filler 21 between support rail beam is set between armored concrete support rail beam base plate 2 described in two rows；
Wired weathering section is set between reinforced concrete beam type structure 1 described in two rows, weathering section tool between described line
There are cross fall and head fall, for current being introduced two adjacent sections armored concrete support rail beam base plate 2 internode expansion joint
And then current are discharged；Between described line, the cross fall of weathering section is 3%～5%, more preferably 4%, and weathering section between line
Head fall not less than 2 ‰, in order to draining.
Described reinforced concrete supporting beam 90 both sides are provided with for limiting the described horizontal position of armored concrete support rail beam base plate 2
The convex gear platform 91 moved；
Under described support rail beam roadbed filling 5 be arranged on shallow layer reinforcement district 6 and described armored concrete support rail beam base plate 2 it
Between, carry for for described armored concrete support rail beam base plate 2, reinforced concrete supporting beam 90 and support rail beam both sides backfill filler 4
For operation platform, and provide lateral support for described pile foundation carrying structure 3；Wherein, described shallow layer reinforcement district 6 is arranged on flabbily
The shallow top layer of layer 7, and roadbed filling 5 and described reinforced concrete beam type structure under described shallow layer reinforcement district 6, described support rail beam
The vertical consistency of 1；
Described support rail beam both sides backfill filler 4 is accepted by roadbed filling 5 under described support rail beam, and described support rail beam two
Side backfill filler 4 props up the both sides of described armored concrete support rail beam base plate 2, with to described armored concrete support rail beam base plate 2
Shield and retrain the transverse shifting of described armored concrete support rail beam base plate 2, and maintenance passage is provided；
Under described support rail beam, roadbed filling 5 and described support rail beam both sides backfill filler 4 collectively form filler filling body 10, institute
State filler filling body 10 both sides and be provided with weathering 11；
The lower end of every described pile foundation carrying structure 3 sequentially passes through roadbed filling 5, described shallow layer reinforcement under described support rail beam
Stretching into behind district 6 and described soft stratum 7 in supporting course 8, with when soft stratum 7 produces sedimentation, described pile foundation carrying structure 3 can
Bear negative friction, thus provide stable carrying to armored concrete support rail beam base plate 2 and reinforced concrete beam type structure 1
Power, to reduce because vertical, the vertical and horizontal rigidity of armored concrete support rail beam 9 are produced not by the sedimentation of filler filling body 10
Profit impact；
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 trapezoidal filling body 14 is arranged between shallow layer reinforcement district 6 and described armored concrete support rail beam base plate 2, its with
Under described support rail beam, roadbed filling 5 abuts near one end of described bridge abutment 12, holds for accepting described armored concrete
Beam-and-rail base plate 2, support rail beam both sides backfill filler 4 and headwall 13；
Described trapezoidal filling body 14 both sides are provided with second weathering 17 consistent with described first weathering 11 gradient.
Further, described first pile foundation carrying structure 3 is cast-in-situ bored pile, and joist 90 has just connect with support rail beam 9 base plate 2 or taken
Connect, just connect with pile foundation carrying structure 3.Position joist 90 at support rail beam internode seam uses pin 15 to take with support rail beam 9 base plate 2
Connecing, remaining position uses and just connects.
Further, between described line, the cross fall of weathering section is 3%～5%, and head fall is typically no less than 2 ‰.
The height of described support rail beam both sides backfill filler 4 is equal with the height of described armored concrete support rail beam base plate 2, institute
These the described first pile foundation carrying structures 3 having are arranged in ranks.
Further, described trapezoidal filling body 14 uses graded broken stone to mix cement production systD, at the bottom of described armored concrete support rail beam
Plate 2 is overlapped between one end of described bridge abutment 12 and described bridge abutment 12 and is provided with wear-resisting sliding layer 16, described pin
15 include that pre-buried connection reinforcing bar 15.1, Colophonium hemp cut 15.2 and rustless steel sleeve pipe 15.3, described pre-buried connection reinforcing bar 15.1 are positioned at
Described rustless steel sleeve pipe 15.3 is interior and arranges described Colophonium hemp cut 15.2 between the two.
This structural shape can effectively solve in low speed magnetic suspension traffic engineering low to put circuit tight to post-construction settlement of subgrade requirement
Lattice, the engineering taking traditional foundation stabilization measure to cause is huge, it is big, long in time limit to invest, and basement process and embankment
Construction quality is wayward, bedding long-time stability and the problem of poor durability, thus improves low circuit support rail girder construction of putting
Reliability, reduces 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 the magnetic-levitation train load of track transmission, then deadweight and upper load are passed to first pile foundation carrying rigidly connected with it
Structure 3, structural reliability is high, can save the large area stiffening basic ground produced after traditional embankment puts slope.
First pile foundation carrying structure 3 uses cast-in-situ bored pile, transverse direction and longitudinal direction to have and is arranged with many reinforced concrete drills
Hole pouring pile, vertical and horizontal rigidity is big；And first pile foundation carrying structure 3 go deep into supporting course 8, when soft stratum 7 produces sedimentation,
First pile foundation carrying structure 3 still can be born negative friction and be provided stronger bearing capacity to armored concrete support rail beam base plate 2.
Low when putting circuit by soft soil zone, top layer shallow to ground should be needed to carry out necessity add according to embankment stability
Gu, form shallow layer reinforcement district 6.The reinforcement depth in shallow layer reinforcement district 6 is by embankment stability control, and its reinforcement depth should be according to embankment
Raising, foundation condition are determined by stability calculation.Compared to by settling and stablizing the single ground of tradition when Two indices controls
For reinforcing mode, shallow layer reinforcement district 6 reinforcement depth is little, in conjunction with first pile foundation carrying structure 3 can effectively control roadbed reclamation and
Post-construction settlement of subgrade.By contrast, this new structure foundation stabilization quantity is little, invests little, and more conducively after construction quality and work
The control of sedimentation, and save cost and reduction of erection time.
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.
Adjacent armored concrete support rail beam base plate 2 shares pile foundation joist composite bearing structure, and at adjacent reinforcing bar
Reserved expansion joint between concrete support rail beam base plate 2, can avoid the section of encorbelmenting by the impact failure of train load, and reduce temperature should
Power and the impact of shrinkage and creep.
The reinforced concrete supporting beam 90 that pile foundation carrying structure 3 and reinforced concrete floor 2 are arranged, can be greatly reduced pile foundation
The stress concentration phenomenon of armored concrete support rail beam base plate 2 at carrying structure；Further, since the lateral connection effect of joist 90,
Too increase lateral stiffness and the ability of opposing differential settlement deformation of structure, the quantity of transverse pile foundation can be reduced, reduce and throw
Money.
Being arranged by framing type by armored concrete support rail beam base plate 2 i.e. divides two rows to arrange, and can avoid at High-speed Train Loads
Lower support rail beam base plate 2 is in multi-direction bending deformation and complex stress condition, the support rail beam increasingly complex compared to tradition stress, point
Width pile foundation joist type support rail beam can reduce buckling deformation to support rail beam base plate 2 and the impact of top girder structure 1.
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) low after smooth platform put construction site, circuit location, require according to design to carry out at the shallow layer foundation reinforcing of necessity
Reason, after basement process completes, low after filling platform by changeover portion design requirement puts under circuit support rail beam geotechnique basis, platform consequence beam-and-rail
Lower geotechnique basis filling construction Tong Bu with abutment cone.According to each position wire feeding and compaction requirement, changeover portion when filling
Scope is synchronous layered with non-changeover portion district fills, and next layer fills and fills last layer after detection meets the requirements again, until reinforcing bar mixes
At the absolute altitude of solidifying soil support rail beam base plate bottom surface；
(3) it is in embankment subgrade cross section, the perfusion of vertical section direction construction drill at reinforced concrete floor bottom surface absolute altitude
Stake, the i.e. first pile foundation carrying structure 3, drilled pile construction should use the construction technology little to railway embankment disturbance, exist if desired
Steel pile casting is set in embankment altitude range or draws hole；After cast-in-situ bored pile reaches desired strength, amputate by code requirement
Pile crown, colligation concrete floor and the connection reinforcing bar with stake；
(4) according to design attitude to reinforced concrete supporting beam 90, convex gear platform 91 formwork erection, one-time-concreting molding, before pouring
Carry out all kinds of built-in fitting such as pin 10 and with pile foundation connect the location of reinforcing bar and installation, concrete is removed after reaching design strength
Template；
(5) laying high-strength wearable sliding layer it is on abutment at armored concrete support rail beam with abutment overlap joint, according to design
Joint is long to armored concrete support rail beam base plate 2 and reinforced concrete beam type structure 1 merogenesis formwork erection, and each parts concrete reaches design
Difference form removal after intensity, intilted weathering and longitudinal drainage slope are made in the face that backfills between reinforced concrete beam type structure
And it is waterproof to carry out top layer by design requirement, one-time-concreting molding, carry out all kinds of built-in fitting such as pin, the connection of sleeper pedestal before pouring
The location of reinforcing bar, water conservancy diversion rail bearing built-in fitting etc. and installation；
(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 (9)
1. medium-and low-speed maglev two-wire embankment location pile foundation joist framing type support rail beam transition section structure, it is characterised in that include stake
Base carries structure, two placing of reinforcement concrete support rail beam base plates, reinforced concrete supporting beam, two placing of reinforcement concrete beam-type structures, holds
Roadbed filling, support rail beam both sides backfill filler, bridge abutment, trapezoidal filling body and headwall under beam-and-rail, wherein,
Described pile foundation carrying structure is provided with many, and every described pile foundation carrying structure is all vertically arranged, and every described stake
Described reinforced concrete supporting beam is all accepted on the top of base carrying structure；
Reinforced concrete beam type knot described in a corresponding row is accepted at the top often arranging described armored concrete support rail beam base plate respectively
Structure；
Described reinforced concrete beam type structure is accepted at the top of described armored concrete support rail beam base plate；
Described pile foundation carrying structure top embed described reinforced concrete supporting beam just connect with it, described reinforced concrete supporting beam and
Described armored concrete support rail beam base plate has just connect or has overlapped, described armored concrete support rail beam base plate and described reinforced beam
Formula structural integrity pours molding thus collectively forms armored concrete support rail beam；
Described in two rows, between armored concrete support rail beam base plate, filler between support rail beam is set；
Described reinforced concrete supporting beam both sides are provided with for limiting the convex of described armored concrete support rail beam base plate lateral displacement
Type gear platform；
Arranging wired weathering section described in two rows between reinforced concrete beam type structure, between described line, weathering section has laterally
The gradient and head fall, for current introducing two adjacent sections armored concrete support rail beam base plate internode expansion joint and then by water
Stream is discharged；
Under described support rail beam, roadbed filling is arranged between shallow layer reinforcement district and described armored concrete support rail beam base plate, for
Operation platform is provided for described armored concrete support rail beam base plate, reinforced concrete supporting beam and support rail beam both sides backfill filler, and
Lateral support is provided for described pile foundation carrying structure；Wherein, described shallow layer reinforcement district is arranged on the shallow top layer of soft stratum, and
Roadbed filling and the vertical consistency of described reinforced concrete beam type structure under described shallow layer reinforcement district, described support rail beam；
Described support rail beam both sides backfill filler is accepted by roadbed filling under described support rail beam, and the backfill of described support rail beam both sides
Filler props up the both sides of described armored concrete support rail beam base plate, to shield described armored concrete support rail beam base plate
And retrain the transverse shifting of described armored concrete support rail beam base plate, and provide maintenance passage；
Under described support rail beam, roadbed filling and described support rail beam both sides backfill filler collectively form filler filling body, and described filler is filled out
The first weathering it is provided with in building body；
The lower end of every described pile foundation carrying structure sequentially passes through roadbed filling under described support rail beam, described shallow layer reinforcement district and institute
Stretching into after stating soft stratum in supporting course, with when soft stratum produces sedimentation, described pile foundation carrying structure can bear negative frictional resistance
Power, thus provide stable bearing capacity to armored concrete support rail beam base plate and reinforced concrete beam type structure, to reduce because filling out
The adverse effect that vertical, the vertical and horizontal rigidity of armored concrete support rail beam are produced by the sedimentation of material filling body；
One end of described armored concrete support rail beam base plate is overlapped on described bridge abutment, and both are released by pin connection
Put longitudinal restraint, and limit lateral displacement；
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；
Described trapezoidal filling body is arranged between shallow layer reinforcement district and described armored concrete support rail beam base plate, itself and described support rail
Under beam, roadbed filling abuts near one end of described bridge abutment, for accepting described armored concrete support rail beam base plate, holding
Beam-and-rail both sides backfill filler and headwall；
Described trapezoidal filling body both sides are provided with second weathering consistent with the described first weathering gradient.
Medium-and low-speed maglev two-wire embankment location the most according to claim 1 pile foundation joist framing type support rail beam changeover portion knot
Structure, it is characterised in that described pile foundation carrying structure is that cast-in-situ bored pile joist has just connect with support rail beam base plate or overlapped, and holds with pile foundation
Carry structure just to connect.
Medium-and low-speed maglev two-wire embankment location the most according to claim 1 pile foundation joist framing type support rail beam changeover portion knot
Structure, it is characterised in that position joist and support rail beam base plate at support rail beam internode seam use pin overlap joint, and remaining position uses just
Connect.
Medium-and low-speed maglev two-wire embankment location the most according to claim 1 pile foundation joist framing type support rail beam changeover portion knot
Structure, it is characterised in that the height of described support rail beam both sides backfill filler and the height phase of described armored concrete support rail beam base plate
Deng.
Medium-and low-speed maglev two-wire embankment location the most according to claim 1 pile foundation joist framing type support rail beam changeover portion knot
Structure, it is characterised in that pile foundation carrying structure described in all these is ranks arrangements.
Torr medium-and low-speed maglev two-wire embankment location the most according to claim 1 pile foundation joist framing type support rail beam changeover portion knot
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 two-wire embankment location the most according to claim 1 pile foundation joist framing type support rail beam changeover portion knot
Structure, it is characterised in that described trapezoidal filling body uses graded broken stone to mix cement production systD.
Medium-and low-speed maglev two-wire embankment location the most according to claim 1 pile foundation joist framing type support rail beam changeover portion knot
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 abutment
Between be provided with wear-resisting sliding layer.
Medium-and low-speed maglev two-wire embankment location the most according to claim 1 pile foundation joist framing type support rail beam changeover portion knot
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 reinforcing bar
It is positioned at described rustless steel sleeve pipe and described Colophonium hemp cut is set between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825204.8A CN106283967B (en) | 2016-09-15 | 2016-09-15 | Medium-and low-speed maglev two-wire embankment location pile foundation joist framing type support rail beam transition section structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825204.8A CN106283967B (en) | 2016-09-15 | 2016-09-15 | Medium-and low-speed maglev two-wire embankment location pile foundation joist framing type support rail beam transition section structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106283967A true CN106283967A (en) | 2017-01-04 |
| CN106283967B CN106283967B (en) | 2017-10-13 |
Family
ID=57712009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610825204.8A Active CN106283967B (en) | 2016-09-15 | 2016-09-15 | Medium-and low-speed maglev two-wire embankment location pile foundation joist framing type support rail beam transition section structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106283967B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108867664A (en) * | 2018-09-04 | 2018-11-23 | 临沂大学 | A kind of road based on contrary sequence method changes bridge section foundation pit supporting construction and its construction method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101504106B1 (en) * | 2013-05-06 | 2015-03-19 | 한국철도기술연구원 | Guideway structure of bracket burying type for maglev levitation train, and constructing method for the same |
| CN104452483A (en) * | 2014-12-09 | 2015-03-25 | 中铁第四勘察设计院集团有限公司 | Medium and low speed maglev traffic engineering low line curve rail bearing beam structure |
| CN105672067A (en) * | 2016-01-21 | 2016-06-15 | 中铁第四勘察设计院集团有限公司 | Bearing-rail beam low track and viaduct transition section structure of medium-low-speed magnetic suspension traffic engineering |
| CN105714626A (en) * | 2016-01-21 | 2016-06-29 | 中铁第四勘察设计院集团有限公司 | Joggle joint type bearing rail beam structure for middle and low-speed magnetic suspension traffic engineering low line |
| CN105887587A (en) * | 2016-04-29 | 2016-08-24 | 中铁第四勘察设计院集团有限公司 | Turnout zone and non-turnout zone transition section structure for medium and low-speed magnetic levitation low implantation line |
| CN105887586A (en) * | 2016-04-29 | 2016-08-24 | 中铁第四勘察设计院集团有限公司 | Low implantation line double-wire section terminal spine type bearing rail beam limiting structure in medium and low speed magnetic levitation transportation engineering |
| WO2016138776A1 (en) * | 2015-03-02 | 2016-09-09 | 中铁第四勘察设计院集团有限公司 | Lowly disposed line structure used in medium-low speed magnetic levitation traffic engineering fill section |
| CN206219912U (en) * | 2016-09-15 | 2017-06-06 | 中铁第四勘察设计院集团有限公司 | Medium-and low-speed maglev two-wire embankment location pile foundation joist framing type support rail beam transition section structure |
-
2016
- 2016-09-15 CN CN201610825204.8A patent/CN106283967B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101504106B1 (en) * | 2013-05-06 | 2015-03-19 | 한국철도기술연구원 | Guideway structure of bracket burying type for maglev levitation train, and constructing method for the same |
| CN104452483A (en) * | 2014-12-09 | 2015-03-25 | 中铁第四勘察设计院集团有限公司 | Medium and low speed maglev traffic engineering low line curve rail bearing beam structure |
| WO2016138776A1 (en) * | 2015-03-02 | 2016-09-09 | 中铁第四勘察设计院集团有限公司 | Lowly disposed line structure used in medium-low speed magnetic levitation traffic engineering fill section |
| CN105672067A (en) * | 2016-01-21 | 2016-06-15 | 中铁第四勘察设计院集团有限公司 | Bearing-rail beam low track and viaduct transition section structure of medium-low-speed magnetic suspension traffic engineering |
| CN105714626A (en) * | 2016-01-21 | 2016-06-29 | 中铁第四勘察设计院集团有限公司 | Joggle joint type bearing rail beam structure for middle and low-speed magnetic suspension traffic engineering low line |
| CN105887587A (en) * | 2016-04-29 | 2016-08-24 | 中铁第四勘察设计院集团有限公司 | Turnout zone and non-turnout zone transition section structure for medium and low-speed magnetic levitation low implantation line |
| CN105887586A (en) * | 2016-04-29 | 2016-08-24 | 中铁第四勘察设计院集团有限公司 | Low implantation line double-wire section terminal spine type bearing rail beam limiting structure in medium and low speed magnetic levitation transportation engineering |
| CN206219912U (en) * | 2016-09-15 | 2017-06-06 | 中铁第四勘察设计院集团有限公司 | Medium-and low-speed maglev two-wire embankment location pile foundation joist framing type support rail beam transition section structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108867664A (en) * | 2018-09-04 | 2018-11-23 | 临沂大学 | A kind of road based on contrary sequence method changes bridge section foundation pit supporting construction and its construction method |
| CN108867664B (en) * | 2018-09-04 | 2023-09-15 | 临沂大学 | Road-to-bridge Duan Jikeng supporting structure based on reverse construction method and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106283967B (en) | 2017-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206219897U (en) | Medium-and low-speed maglev two-wire excavation location pile foundation combined type support rail beam transition section structure | |
| CN106283950B (en) | Medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation joist type support rail beam transition section structure | |
| CN106283966B (en) | Medium-and low-speed maglev single line embankment location independence pier stud type support rail beam transition section structure | |
| CN106283948A (en) | Medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation joist type support rail girder construction | |
| CN206127736U (en) | Moderate -low speed magnetic levitation double -line compound framing formula support rail roof beam transition section structure of location pile foundation that fills | |
| CN106283957B (en) | Medium-and low-speed maglev two-wire excavation location pile foundation joist framing type support rail beam transition section structure | |
| CN106400615B (en) | Medium-and low-speed maglev single line excavation location independence pier stud type support rail beam transition section structure | |
| CN206157485U (en) | Moderate -low speed magnetic levitation single line excavation location pile foundation combined type support rail roof beam transition section structure | |
| CN206219912U (en) | Medium-and low-speed maglev two-wire embankment location pile foundation joist framing type support rail beam transition section structure | |
| CN106283967B (en) | Medium-and low-speed maglev two-wire embankment location pile foundation joist framing type support rail beam transition section structure | |
| CN106436496B (en) | Medium-and low-speed maglev single line embankment location pile foundation combined type support rail beam transition section structure | |
| CN206127740U (en) | Moderate -low speed magnetic levitation single line location supporting beam of pile foundation formula support rail roof beam transition section structure that fills | |
| CN106283953B (en) | Medium-and low-speed maglev two-wire embankment location pile foundation combined type support rail beam transition section structure | |
| CN106283946B (en) | The compound framing type support rail beam transition section structure of medium-and low-speed maglev two-wire excavation location pile foundation | |
| CN206127757U (en) | Moderate -low speed magnetic levitation single line location detached pier column type support rail roof beam transition section structure that fills | |
| CN106283959B (en) | Medium-and low-speed maglev single line excavation location pile foundation joist type support rail beam transition section structure | |
| CN206127759U (en) | Moderate -low speed magnetic levitation double -line location detached pier column type support rail roof beam transition section structure that fills | |
| CN206157487U (en) | Moderate -low speed magnetic levitation single line location pile foundation combined type support rail roof beam transition section structure that fills | |
| CN206157482U (en) | Moderate -low speed magnetic levitation double -line location pile foundation combined type support rail roof beam transition section structure that fills | |
| CN106283956B (en) | Medium-and low-speed maglev two-wire excavation location pile foundation combined type support rail beam transition section structure | |
| CN106283939B (en) | Medium-and low-speed maglev two-wire excavation location pile foundation joist type support rail beam transition section structure | |
| CN206157488U (en) | Moderate -low speed magnetic levitation traffic engineering double -line location supporting beam of pile foundation formula support rail roof beam transition section structure that fills | |
| CN206157481U (en) | Compound framing type support rail roof beam transition section structure of moderate -low speed magnetic levitation double -line excavation location pile foundation | |
| CN206127743U (en) | Moderate -low speed magnetic levitation double -line excavation location supporting beam of pile foundation framing formula support rail roof beam transition section structure | |
| CN106283973B (en) | Medium-and low-speed maglev traffic engineering two-wire excavation location independence pier stud type support rail beam transition section structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |