CN206219897U - Medium-and low-speed maglev two-wire excavation location pile foundation combined type support rail beam transition section structure - Google Patents
Medium-and low-speed maglev two-wire excavation location pile foundation combined type support rail beam transition section structure Download PDFInfo
- Publication number
- CN206219897U CN206219897U CN201621058133.5U CN201621058133U CN206219897U CN 206219897 U CN206219897 U CN 206219897U CN 201621058133 U CN201621058133 U CN 201621058133U CN 206219897 U CN206219897 U CN 206219897U
- Authority
- CN
- China
- Prior art keywords
- support rail
- pile foundation
- base plate
- armored concrete
- bearing
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model belongs to that middle low speed magnetic suspension traffic engineering is low to put Line technology field, and disclose medium-and low-speed maglev two-wire excavation location pile foundation combined type support rail beam transition section structure, including the first pile foundation bearing structure, pile foundation joist composite bearing structure, two placing of reinforcement concrete support rail beam base plates, two placing of reinforcement concrete beam-type structures, support rail beam both sides backfill filler, bridge abutment and headwall, armored concrete support rail beam base plate is accepted on the top of the first pile foundation bearing structure；Accept reinforced concrete beam type structure in the top of armored concrete support rail beam base plate；Support rail beam both sides are backfilled and the first gutter are provided with by filler, and the first weathering is provided with described in the side in first gutter.The utility model long-time stability are more preferable, both the high request to the deformation of support rail girder construction and settlement after construction had been met, the requirement of the controllability of bedding long-time stability, durability and construction quality is met again, effectively realizes magnetic suspension elevated structure with the low smoothly transition for putting line transition section F rails.
Description
Technical field
The utility model belongs to that middle low speed magnetic suspension traffic engineering is low to put Line technology field, low more particularly, in
Fast magnetic floats two-wire excavation location support rail beam transition section structure pattern.
Background technology
Middle low speed magnetic suspension track traffic belongs to a kind of novel traffic mode, and achievement in research both domestic and external is less, the whole world
The circuit for opening operation is even more a small number of.The middle low speed magnetic suspension railway business that only in March, 2005 Japan's construction at present is opened is transported
The middle low speed magnetic suspension railway business operating line that line-the East Hillside Line and in June, 2014 South Korea open.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 based on elevated structure, it is rarely seen about elevated structure and the low research put in terms of line transition segment structure and
Using.
In wheel rail high speed railway, there is substantial amounts of bridge changeover portion roadbed, high-speed railway changeover portion roadbed is used mostly
Trapezium structure, employs cement stabilized graded macabam and fills, and employ the compacting higher than non-changeover portion roadbed in trapezoidal scope
It is required that.During built high-speed railway operation, often there is non-fragment orbit protuberance, gap, grout in bridge transition segment limit
Etc. disease.The reason for this disease, be mostly because changeover portion roadbed is still by the earth structure of rock and soil constitution, changeover portion
After roadbed is laid a railway track, certain sedimentation still can occur, there is poor (the specification permission settlement after construction of certain settlement after construction with bridge abutment
Difference is not more than 5mm), because high-speed railway uses seamless track steel rail, allowed in settlement after construction difference scope in specification, have no effect on
Normal operation, but the diseases such as non-fragment orbit protuberance, gap, grout can be caused, it is necessary to timely repair and maintenance.
The F rails of medium-and low-speed maglev traffic lines are spliced using fishplate bar scene by a short rail successively, and between leaving rail
Seam, meets the ride comfort of the F rails of magnetic-levitation train even running requirement, and works ensures under rail is leaned on substantially.It is low to put circuit location,
Basis is, by the earth structure of rock and soil constitution, to be influenceed by factors such as landform, geological conditions under support rail beam, and quality is not relatively easily-controllable
System, differential settlement is also easy to produce under load and the effect of various factor of natural environment, can be occurred unavoidably and elevated structure bridge bridge
The inconsistent settlement after construction of platform, 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 rails, in some instances it may even be possible to cause F rails to produce the problems such as faulting of slab ends, deformation, when serious, will influence the normal fortune of maglev vehicle
Battalion.
Utility model content
For the disadvantages described above or Improvement requirement of prior art, the utility model provides medium-and low-speed maglev two-wire excavation ground
Section pile foundation combined type support rail beam transition section structure, the structure should meet elevated structure and the low rigidity put between circuit with sedimentation
Transition, it is ensured that magnetic suspension traffic engineering elevated structure and the low ride comfort requirement for putting line transition section F rails, meets the floating friendship of magnetic again
The low intensity for putting line transition section sub-rail foundation of logical engineering, long-time stability requirement, and construction quality controllability is strong.
To achieve the above object, the utility model provides medium-and low-speed maglev two-wire excavation location pile foundation combined type support rail beam
Transition section structure, it is characterised in that held including the first pile foundation bearing structure, pile foundation joist composite bearing structure, armored concrete
Beam-and-rail base plate, two placing of reinforcement concrete beam-type structures, support rail beam both sides backfill filler, abutment bridge and headwall, wherein,
The first pile foundation bearing structure and the pile foundation joist composite bearing structure accept the armored concrete jointly
Support rail beam base plate；
The first pile foundation bearing structure is provided with many, and the every first pile foundation bearing structure is vertically arranged, and
And the armored concrete support rail beam base plate is accepted on the top of the every first pile foundation bearing structure, first pile foundation is held
The top for carrying structure is embedded in the armored concrete support rail beam base plate and its rigid connection；
Reinforced concrete beam type structure described in two rows is accepted at the top of the armored concrete support rail beam base plate, and adjacent
Expansion joint is reserved between the two section armored concrete support rail beam base plates；
The pile foundation joist composite bearing structure setting has multiple, and the two adjacent section armored concrete support rail beams
Pile foundation joist composite bearing structure described in one is respectively provided with the expansion joint of base plate, for two blocks of reinforcing bars for supporting this adjacent
Concrete support rail beam base plate, each described pile foundation joist composite bearing structure includes that reinforced concrete supporting beam and the second pile foundation are held
Structure is carried, and the reinforced concrete supporting beam is accepted on the top of the every second pile foundation bearing structure, and the reinforcing bar is mixed
Solidifying soil joist accepts the armored concrete support rail beam base plate；
The top of the second pile foundation bearing structure is embedded in the reinforced concrete supporting beam and its rigid connection, the reinforced concrete
Native joist and the armored concrete support rail beam base plate rigid connection or overlap joint, the armored concrete support rail beam base plate and the reinforcing bar
Concrete beam-type structural integrity pours shaping so as to collectively form armored concrete support rail beam；
The reinforced concrete supporting beam both sides are provided with for limiting the armored concrete support rail beam base plate lateral displacement
Convex gear platform；
Weathering section between wired weathering section, the line is set between reinforced concrete beam type structure described in two rows to be had
Cross fall and head fall, for by current introduce two adjacent sections armored concrete support rail beam base plate internode expansion joint and then
Current are discharged；
The support rail beam both sides backfill filler is arranged on soft stratum, and by support rail beam both sides backfill filler
The first gutter is provided with, first gutter is provided with the first draining away from the side of support rail beam both sides backfill filler
Slope；
The armored concrete support rail beam base plate is located in support rail beam both sides backfill filler；
The every lower end of the first pile foundation bearing structure is stretched into supporting course after passing through the soft stratum, with weakness
When stratum produces sedimentation, the first pile foundation bearing structure can bear negative friction, so as to reinforcing bar armored concrete support rail beam
The bearing capacity of stabilization is provided, in case the differential settlement reduction armored concrete support rail beam of support rail beam both sides backfill filler is perpendicular
To, vertical and horizontal rigidity；
One end of the armored concrete support rail beam base plate is overlapped on the bridge abutment, and both are connected by pin
Release longitudinal restraint is connect, and limits lateral displacement；
The both sides of one end that the armored concrete support rail beam base plate is overlapped on the bridge abutment are respectively provided with the end
Wall, and the headwall per side abutted with the support rail beam both sides backfill filler of respective side respectively, and the support rail is protected for gear
Beam both sides backfill filler；
The second gutter is provided with by the headwall, second gutter is provided with second away from the side of the headwall
Weathering.
Preferably, the first pile foundation bearing structure is cast-in-situ bored pile, joist and support rail beam base plate rigid connection or overlap joint, with
Pile foundation bearing structure rigid connection.
Preferably, the first pile foundation bearing structure described in all these is arranged in ranks.
Preferably, the lower end of the every second pile foundation bearing structure sequentially passes through roadbed filling under the support rail beam, shallow
Stretched into supporting course after layer stabilization zone and the soft stratum.
Preferably, the armored concrete support rail beam base plate is overlapped on one end of the bridge abutment and the bridge abutment
Between be provided with wear-resisting sliding layer.
Preferably, the pin includes pre-buried connection reinforcing bar, pitch hemp cut and stainless steel sleeve pipe, the pre-buried connection reinforcing bar
The pitch hemp cut is fixedly installed in the stainless steel sleeve pipe and between the two.
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 utility model compared with prior art, can obtain down
Row beneficial effect：
(1) armored concrete support rail beam base plate of the present utility model, reinforced concrete beam type structure use reinforced concrete
Soil scene one-piece casting, the two composition integral reinforced concrete structure is used to directly take on track load and the magnetic of track transmission is floated
Train load, then will deadweight and upper load pass to its rigidly connected first pile foundation bearing structure, structural reliability is high.
(2) the first pile foundation bearing structure of the present utility model is goed deep into supporting course, when roadbed produces certain sedimentation, first
Base bearing structure can still bear negative friction and provide stronger bearing capacity, it is to avoid be made because foundation stabilization quality is whard to control
Into influence of the differential settlement to support rail beam vertical and horizontal rigidity, structure vertical cross stiffness and structural reliability are more excellent.
(3) the first pile foundation bearing structure control settlement effect of the present utility model is preferable, therefore can save cutting bedding ground
Cutting bedding replacement thickness is reinforced and reduced to base, need to only meet the requirement of basic replacement thickness, can investment reduction, shorten the duration,
With obvious technology and economic advantages.
(4) reinforced concrete supporting beam that pile foundation bearing structure and reinforced concrete floor are set, can greatly reduce pile foundation
The stress concentration phenomenon of armored concrete support rail beam base plate at bearing structure；Further, since the lateral connection effect of joist, also increases
Add the lateral stiffness of structure and the ability of resistance differential settlement deformation, the quantity of transverse pile foundation can have been reduced, reduce investment.
(5) while two placing of reinforcement concrete beam-type structures of two-wire are combined by reinforced concrete floor, can
To be effectively increased the lateral stiffness of reinforced concrete beam type structure, left and right two is saved reinforced concrete beam type structure and be placed in rigidity phase
On same reinforced concrete floor, the lateral stability of reinforced concrete beam type structure can be effectively increased, control reinforced concrete
Relative settlement between native girder structure, also beneficial to operation during maintenance with safeguard, measure is simple, easily construction, cost save, effect
It is really good.
(6) adjacent armored concrete support rail beam base plate shares pile foundation joist composite bearing structure, and in adjacent steel
Expansion joint is reserved between reinforced concrete support rail beam base plate, impact failure of the section by train load of encorbelmenting can be avoided, and reduce temperature
The influence of stress and shrinkage and creep.
(7) armored concrete support rail beam base plate is overlapped on bridge abutment near one end of elevated bridge, by pin
Connection, it is to avoid sedimentation faulting of slab ends between the two caused by measures of foundation treatment difference, it is ensured that the floating F rails of magnetic it is low put circuit with
Bridge abutment connected position will not produce faulting of slab ends, effectively realize that magnetic suspension traffic engineering elevated structure puts line transition section F with low
The smoothly transition of rail.
Brief description of the drawings
Fig. 1 is schematic longitudinal section of the present utility model；
Fig. 2 is the generalized section along I-I line in Fig. 1；
Fig. 3 is the generalized section along II-II line in Fig. 1；
Fig. 4 is the floor map that armored concrete support rail beam base plate is overlapped on bridge abutment in the utility model；
Fig. 5 is the utility model pile foundation joist and the armored concrete support rail affixed connection diagram of beam base plate.
Fig. 6 is the utility model pile foundation joist and armored concrete support rail beam base plate is articulated and connected schematic diagram.
Fig. 7 is the cross-sectional view of pin in the utility model.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model, is not used to limit the utility model.Additionally, institute in the utility model disclosed below each implementation method
As long as the technical characteristic being related to does not constitute conflict and can just be mutually combined each other.
1~Fig. 7 of reference picture, medium-and low-speed maglev two-wire excavation location pile foundation combined type support rail beam transition section structure, including the
One pile foundation bearing structure 3, pile foundation joist composite bearing structure 90, armored concrete support rail beam base plate 2, two placing of reinforcement beams of concretes
Formula structure 1, support rail beam both sides backfill filler 4, bridge abutment 12 and headwall 13, wherein,
The first pile foundation bearing structure 3 and the pile foundation joist composite bearing structure 90 accept the reinforced concrete jointly
Native support rail beam base plate 2；
The first pile foundation bearing structure 3 is provided with many, and the every first pile foundation bearing structure 3 is vertically arranged,
And the armored concrete support rail beam base plate 2, described first are accepted in the top of the every first pile foundation bearing structure 3
The top of base bearing structure 3 is embedded in the armored concrete support rail beam base plate 2 and its rigid connection；
Accept reinforced concrete beam type structure 1 described in two rows, and phase in the top of the armored concrete support rail beam base plate 2
Expansion joint is reserved between the adjacent two section armored concrete support rail beam base plate 2；
The joist composite bearing structure 90 of the pile foundation 901 is provided with multiple, and the two adjacent section armored concrete
The joist composite bearing structure 90 of pile foundation 901 described in one is respectively provided with the expansion joint of support rail beam base plate 2, for supporting this adjacent
The two section armored concrete support rail beam base plates 2, each joist composite bearing structure 90 of the pile foundation 901 includes reinforced concrete
The pile foundation bearing structure 902 of native joist 901 and second, and institute is accepted on the top of the every second pile foundation bearing structure 902
Reinforced concrete supporting beam 901 is stated, the reinforced concrete supporting beam 901 accepts the armored concrete support rail beam base plate 2；
The top of the second pile foundation bearing structure 902 is embedded in the reinforced concrete supporting beam 901 and its rigid connection, the steel
Reinforced concrete joist 901 and the rigid connection of armored concrete support rail beam base plate 2 or overlap joint, the armored concrete support rail beam base plate
2 are molded so as to collectively form armored concrete support rail beam 9 with the formed by integrally casting of reinforced concrete beam type structure 1；
The both sides of the reinforced concrete supporting beam 901 are provided with for limiting the armored concrete support rail beam base plate 2 laterally
The convex gear platform of displacement；
Weathering section tool between wired weathering section, the line is set between reinforced concrete beam type structure 1 described in two rows
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 base plate 2
And then discharge current；The cross fall of weathering section is weathering section between 3%~5%, more preferably 4%, line between the line
Head fall be not less than 2 ‰, in order to draining.
The support rail beam both sides backfill filler 4 is arranged on soft stratum 5, and backfills filler in the support rail beam both sides
It is provided with the first gutter 7 by the of 4, first gutter 7 is provided with the away from the side of support rail beam both sides backfill filler 4
One weathering 8；
The armored concrete support rail beam base plate 2 is located in support rail beam both sides backfill filler 4；
Every lower end of the first pile foundation bearing structure 3 through stretching into supporting course 6 after the soft stratum 5, with
When soft stratum 5 produces sedimentation, the first pile foundation bearing structure 3 can bear negative friction, so as to reinforcing bar armored concrete
Support rail beam 9 provides the bearing capacity of stabilization, in case the differential settlement reduction armored concrete support rail of support rail beam both sides backfill filler 4
Vertical, the vertical and horizontal rigidity of beam 9；
One end of the armored concrete support rail beam base plate 2 is overlapped on the bridge abutment 12, and both pass through pin
15 Connection Release longitudinal restraints are followed closely, and limits lateral displacement；
The both sides of one end that the armored concrete support rail beam base plate 2 is overlapped on the bridge abutment 12 are respectively provided with described
Headwall 13, and the headwall 13 per side abuts with the support rail beam both sides backfill filler 4 of respective side respectively, for gear shield institute
State support rail beam both sides backfill filler 4；
The second gutter 17 is provided with by the headwall 13, second gutter 17 sets away from the side of the headwall 13
It is equipped with the second weathering 18.
Further, the first pile foundation bearing structure 3 is cast-in-situ bored pile, joist 90 and the rigid connection of 9 base plate of support rail beam 2 or
Overlap joint, with the rigid connection of pile foundation bearing structure 3.Overlapped using pin 15 in the position of support rail beam internode seam, remaining position uses rigid connection.
First pile foundation bearing structure 3 described in all these is arranged in ranks.
Further, the armored concrete support rail beam base plate 2 is overlapped on one end of the bridge abutment 12 and the bridge
It is provided with wear-resisting sliding layer 16 between abutment 12, the pin 15 includes pre-buried connection reinforcing bar 15.1, pitch hemp cut 15.2 and not
Rust steel sleeve 15.3, the pre-buried connection reinforcing bar 15.1 is located in the stainless steel sleeve pipe 15.3 and is fixedly installed between the two
The pitch hemp cut 15.2.
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 cutting excavate replacement thickness it is big caused by engineering is huge, invest big, long in time limit, and backfill filler construction
Quality is whard to control, the problem of bedding long-time stability and poor durability, so as to improve the low reliability for putting circuit support rail girder construction
Degree, reduces engineering risk.
The agent structure of the utility model armored concrete support rail beam 9 uses reinforced concrete soil scene one-piece casting, reinforcing bar
The girder structure of concrete support rail beam 9 is used to directly take on the magnetic-levitation train load of track load and track transmission, then will deadweight and
Upper load pass to its rigidly connected pile foundation bearing structure 3, structural reliability is high.Pile foundation bearing structure 3 uses reinforcing bar
Concrete drilling bored concrete pile makes, and transverse direction and longitudinal direction is made up of multiple rows of reinforced concrete bored pile, and vertical cross stiffness is big；And
The deep reliable supporting course 8 of pile foundation, embankment occurs to be produced between certain sedimentation and armored concrete support rail beam 9 when coming to nothing, and pile foundation is held
Carrying structure 3 can still bear negative friction and provide stronger bearing capacity, with stronger longitudinal, vertical and lateral stability.
Two line reinforced concrete beam type structures are connected by sharing base plate, further increase the lateral stiffness and stability of structure.
One end of armored concrete support rail beam base plate 2 of armored concrete support rail beam 9 is overlapped on bridge abutment 12, and the two leads to
Cross pin 15 to connect, the releasable temperature stress in the longitudinal direction of pin 15 realizes that support rail beam, in the flexible of longitudinal direction, 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 the lap position of abutment 12 is consistent, it is to avoid bridge abutment 12 and it is low put circuit support rail girder construction between produce faulting of slab ends sedimentation；It is low
Put the other end of circuit armored concrete support rail beam base plate 2 and be embedded in the low of stabilization and put line construction, its sedimentation puts circuit with low
Structure is consistent, due to it is low put line construction through basement process and fill compacting after sedimentation value be in controlled range, therefore, support rail
Sedimentation between beam two ends be located at bridge abutment 12 and it is low put 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, and the smooth-going of transition segment limit F rails has been 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 to a certain extent release the rotation that support rail beam is likely to occur under the load actions such as relative settlement, temperature
Constraint, and the dynamic stress cushioning effect of bridge abutment 12 is transferred to magnetic-levitation train, it also avoid support rail beam and bridge abutment
Abrasion and stress concentration between 12 cause the partial pressing of structure to destroy.
Adjacent armored concrete support rail beam base plate 2 shares pile foundation joist composite bearing structure, and in adjacent reinforcing bar
Expansion joint is reserved between concrete support rail beam base plate 2, can avoid encorbelmenting impact failure of the section by train load, and reduce temperature should
The influence of power and shrinkage and creep.
The reinforced concrete supporting beam 90 that pile foundation bearing structure 3 and reinforced concrete floor 2 are set, can greatly reduce pile foundation
The stress concentration phenomenon of armored concrete support rail beam base plate 2 at bearing structure；Further, since the lateral connection effect of joist 90,
The lateral stiffness of structure and the ability of resistance differential settlement deformation are also increased, the quantity of transverse pile foundation can be reduced, reduced and throw
Money.
The specific making step of the utility model is as follows：
(1) construction overhead bridge structure abutment, pours bridge abutment body concrete, abutment of constructing, and backfills abutment foundation foundation ditch；
The positioning of pin and embedded work should be performed before abutment concreting；
(2) excavating cut slope side slope carries out necessary bedding and changes to fill out to designing at road bed absolute altitude according to design requirement；Ground
After the completion for the treatment of, filled by changeover portion design requirement and low after platform put geotechnique basis, geotechnique under support rail beam after platform under circuit support rail beam
Basis filling construction synchronous with abutment cone.According to each position wire feeding and compaction requirement when filling, transition segment limit with
Non- changeover portion area is synchronous layered to be filled, and next layer is filled after detection meets the requirements and fills last layer again, until armored concrete holds
At the absolute altitude of beam-and-rail base plate bottom surface；
(3) subgrade cross section, vertical section direction construction drill bored concrete pile are in reinforced concrete floor bottom surface absolute altitude, i.e.,
First pile foundation bearing structure 3, drilled pile construction should be using the construction technology small to filling roadbed disturbance；Reached in cast-in-situ bored pile
To after desired strength, pile crown, colligation concrete floor and the connection reinforcing bar with stake are amputated by code requirement；
(4) high-strength wearable sliding layer is laid on abutment in armored concrete support rail beam and abutment overlap joint, according to design
Section is long to keeping off platform 91, armored concrete support rail beam base plate 2 and the merogenesis formwork erection of reinforced concrete beam type structure 1 to joist 90, convex,
Each part concrete reaches after design strength and to backfill face between form removal respectively, reinforced concrete beam type structure and make inward slant
Weathering and carry out top layer waterproof by design requirement, all kinds of built-in fittings such as pin, sleeper are carried out in one-time-concreting shaping before pouring
The positioning of pedestal connection reinforcing bar, water conservancy diversion rail bearing built-in fitting etc. and installation；
(5) construction is low puts the joint both sides headwall 13 of circuit bridge abutment 12, and headwall 13 is applied using concrete one-piece casting
Work, waits the concrete of headwall 13 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 cone top surface confining bed of design and construction bridge abutment 12 etc., side of constructing
Slope protection, drainage system etc..
(6) carry out it is low put circuit and the laying of the elevated structure section of track and the installation of associated satellite engineering and construction, construction finishes
Afterwards.
As it will be easily appreciated by one skilled in the art that preferred embodiment of the present utility model is the foregoing is only, not
It is used to limit the utility model, all any modifications made within spirit of the present utility model and principle, equivalent and changes
Enter, should be included within protection domain of the present utility model.
Claims (8)
1. medium-and low-speed maglev two-wire excavation location pile foundation combined type support rail beam transition section structure, it is characterised in that including first
Base bearing structure, pile foundation joist composite bearing structure, armored concrete support rail beam base plate, two placing of reinforcement concrete beam-type structures,
Support rail beam both sides backfill filler, bridge abutment and headwall, wherein,
The first pile foundation bearing structure and the pile foundation joist composite bearing structure accept the armored concrete support rail jointly
Beam base plate；
The first pile foundation bearing structure is provided with many, and the every first pile foundation bearing structure is vertically arranged, and often
The armored concrete support rail beam base plate is accepted on the top of the first pile foundation bearing structure described in root, and first pile foundation carries knot
The top of structure is embedded in the armored concrete support rail beam base plate and its rigid connection；
Accept reinforced concrete beam type structure described in two rows, and two adjacent sections in the top of the armored concrete support rail beam base plate
Expansion joint is set between the armored concrete support rail beam base plate；
The pile foundation joist composite bearing structure setting has multiple, and two pieces of adjacent armored concrete support rail beam base plates
Expansion joint at be respectively provided with pile foundation joist composite bearing structure described in, for the two section reinforced concretes for supporting this adjacent
Native support rail beam base plate, each described pile foundation joist composite bearing structure includes that reinforced concrete supporting beam and the second pile foundation carry knot
Structure, and the reinforced concrete supporting beam, the armored concrete are accepted in the top of the every second pile foundation bearing structure
Joist accepts the armored concrete support rail beam base plate；
The top of the second 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 base plate rigid connection or overlap joint, the armored concrete support rail beam base plate and the reinforced concrete
Native girder structure formed by integrally casting shaping is so as to collectively form armored concrete support rail beam；
The reinforced concrete supporting beam both sides are provided with for limiting the convex of the armored concrete support rail beam base plate lateral displacement
Type keeps off platform；
Weathering section between wired weathering section, the line is set between reinforced concrete beam type structure described in two rows to be had laterally
The gradient and head fall, for current are introduced into two adjacent sections armored concrete support rail beam base plate internode expansion joint and then by water
Stream discharge；
The support rail beam both sides backfill filler is arranged on soft stratum, and is set by support rail beam both sides backfill filler
There is the first gutter, first gutter is provided with the first weathering away from the side of support rail beam both sides backfill filler；
The armored concrete support rail beam base plate is located in support rail beam both sides backfill filler；
The every lower end of the first pile foundation bearing structure is stretched into supporting course after passing through the soft stratum, with soft stratum
When producing sedimentation, the first pile foundation bearing structure can bear negative friction, so as to be provided to reinforcing bar armored concrete support rail beam
The bearing capacity of stabilization, in case the differential settlement reduction armored concrete support rail beam of support rail beam both sides backfill filler is vertical, vertical
To and lateral stiffness；
One end of the armored concrete support rail beam base plate is overlapped on the bridge abutment, and both are connected by pin and released
Longitudinal restraint is put, and limits lateral displacement；
The both sides of one end that the armored concrete support rail beam base plate is overlapped on the bridge abutment are respectively provided with the headwall, and
And the headwall per side is abutted with the support rail beam both sides backfill filler of respective side respectively, for the gear shield support rail beam both sides
Backfill filler；
The second gutter is provided with by the headwall, second gutter is provided with the second draining away from the side of the headwall
Slope.
2. pile foundation combined type support rail beam transition section structure in medium-and low-speed maglev two-wire excavation location according to claim 1, its
It is characterised by, the first pile foundation bearing structure is cast-in-situ bored pile, joist and support rail beam base plate rigid connection or overlap joint, is held with pile foundation
Carry structure rigid connection.
3. pile foundation combined type support rail beam transition section structure in medium-and low-speed maglev two-wire excavation location according to claim 1, its
It is characterised by, overlapped using pin in position joist and the support rail beam base plate of support rail beam internode seam, remaining position uses rigid connection.
4. pile foundation combined type support rail beam transition section structure in medium-and low-speed maglev two-wire excavation location according to claim 1, its
It is characterised by, the first pile foundation bearing structure described in all these is arranged in ranks.
5. pile foundation combined type support rail beam transition section structure in medium-and low-speed maglev two-wire excavation location according to claim 1, its
It is characterised by, the lower end of the every second pile foundation bearing structure sequentially passes through roadbed filling, shallow layer reinforcement under the support rail beam
Stretched into supporting course after area and the soft stratum.
6. pile foundation combined type support rail beam transition section structure in medium-and low-speed maglev two-wire excavation location according to claim 1, its
It is characterised by, the cross fall of weathering section is 3%~5% between the line, and head fall is not less than 2 ‰.
7. pile foundation combined type support rail beam transition section structure in medium-and low-speed maglev two-wire excavation location according to claim 1, its
It is characterised by, the armored concrete support rail beam base plate is overlapped between one end of the bridge abutment and the bridge abutment and sets
It is equipped with wear-resisting sliding layer.
8. pile foundation combined type support rail beam transition section structure in medium-and low-speed maglev two-wire excavation location according to claim 3, its
It is characterised by, 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 institute
State in stainless steel sleeve pipe and the pitch hemp cut is fixedly installed between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621058133.5U CN206219897U (en) | 2016-09-15 | 2016-09-15 | Medium-and low-speed maglev two-wire excavation location pile foundation combined type support rail beam transition section structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621058133.5U CN206219897U (en) | 2016-09-15 | 2016-09-15 | Medium-and low-speed maglev two-wire excavation location pile foundation combined type support rail beam transition section structure |
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| Publication Number | Publication Date |
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| CN206219897U true CN206219897U (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621058133.5U Withdrawn - After Issue CN206219897U (en) | 2016-09-15 | 2016-09-15 | Medium-and low-speed maglev two-wire excavation location pile foundation combined type support rail beam transition section structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283956A (en) * | 2016-09-15 | 2017-01-04 | 中铁第四勘察设计院集团有限公司 | Medium-and low-speed maglev two-wire excavation location pile foundation combined type support rail beam transition section structure |
| CN107881857A (en) * | 2017-11-10 | 2018-04-06 | 成都天府轨谷科技有限公司 | Magnetic suspension tunnel draining of rail system |
| CN107964833A (en) * | 2017-11-10 | 2018-04-27 | 成都天府轨谷科技有限公司 | Ground magnetic-levitation subgrade drainage system |
| CN107964873A (en) * | 2017-11-10 | 2018-04-27 | 成都天府轨谷科技有限公司 | Magnetic suspension aerial conveyor bridge drainage system |
-
2016
- 2016-09-15 CN CN201621058133.5U patent/CN206219897U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283956A (en) * | 2016-09-15 | 2017-01-04 | 中铁第四勘察设计院集团有限公司 | Medium-and low-speed maglev two-wire excavation location pile foundation combined type support rail beam transition section structure |
| CN107881857A (en) * | 2017-11-10 | 2018-04-06 | 成都天府轨谷科技有限公司 | Magnetic suspension tunnel draining of rail system |
| CN107964833A (en) * | 2017-11-10 | 2018-04-27 | 成都天府轨谷科技有限公司 | Ground magnetic-levitation subgrade drainage system |
| CN107964873A (en) * | 2017-11-10 | 2018-04-27 | 成都天府轨谷科技有限公司 | Magnetic suspension aerial conveyor bridge drainage system |
| CN107881857B (en) * | 2017-11-10 | 2021-03-30 | 成都天府轨谷科技有限公司 | Magnetic suspension tunnel track drainage system |
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Granted publication date: 20170606 Effective date of abandoning: 20171114 |