CN206219896U - Medium-and low-speed maglev traffic engineering two-wire excavation location pile foundation joist type support rail girder construction - Google Patents
Medium-and low-speed maglev traffic engineering two-wire excavation location pile foundation joist type support rail girder construction Download PDFInfo
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- CN206219896U CN206219896U CN201621058039.XU CN201621058039U CN206219896U CN 206219896 U CN206219896 U CN 206219896U CN 201621058039 U CN201621058039 U CN 201621058039U CN 206219896 U CN206219896 U CN 206219896U
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- China
- Prior art keywords
- support rail
- pile foundation
- rail beam
- base plate
- bearing structure
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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 traffic engineering two-wire excavation location pile foundation joist type support rail girder construction, filler is backfilled including pile foundation bearing structure, reinforced concrete supporting beam, armored concrete support rail beam base plate, two placing of reinforcement concrete beam-type structures and support rail beam both sides, the pile foundation bearing structure is provided with many, and the reinforced concrete supporting beam is accepted on the top of the every pile foundation bearing structure；Accept the reinforced concrete beam type structure in the top of the armored concrete support rail beam base plate；Be provided with gutter by support rail beam both sides backfill filler, the gutter away from support rail beam both sides backfill filler side described in be provided with weathering.Low speed magnetic suspension traffic engineering track structure deforms and settlement after construction requirement high to support rail girder construction during the utility model can meet, and the requirement of bedding long-time stability, durability and construction quality controllability can be met again, and economy is more preferably.
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 floating traffic engineering two-wire excavation location support rail girder construction pattern.
Background technology
Middle low speed magnetic suspension track traffic belongs to a kind of novel traffic mode, and achievement in research both domestic and external is less, the whole world
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, the rarely seen relevant low research put in terms of circuit support rail girder construction and applies.
The outstanding traffic civil engineering part of middle low speed magnetic suspension mainly comprising bridge, it is low put circuit, station and rolling stock section, it is low to put circuit
By the section of track, support rail beam and under support rail beam, roadbed is constituted, and the support rail beam of supporting track is arranged on the roadbed being made up of earth structure
On, the operation of middle low speed magnetic suspension train includes suspending, be oriented to, drive and braking being required for what is completed on support rail beam.Magnetic
Aerotrain is very high to line construction deformation requirements, because the deformation of structure very little may influence comfortableness even prestige by bus
Side of body traffic safety, so the design of support rail beam is particularly significant.
Existing support rail girder construction is applied has problems with middle low speed magnetic suspension traffic low putting on circuit：
(1) existing low circuit support rail girder construction of putting is arranged on roadbed earth structure, roadbed earth structure by
Filler fills compacting and forms, and compaction quality is difficult to control, and the later stage is susceptible to deformation, and settlement after construction is difficult to control to.
(2) the low settlement after construction requirement for putting circuit support rail girder construction to roadbed and ground is high, and is routed through the ground in region
Matter condition is typically all complicated and changeable, is difficult to control to using conventional support rail beam structure construction quality.
(3) because the low circuit earth structure of putting that filler fills compacting has vulnerability, and construction quality is difficult
Control, relatively easily produces differential settlement, causes bedding vertical and horizontal bad stability under support rail beam, so that support rail beam
The resistance to overturning of structure is damaged.
The low circuit support rail beam of putting of magnetic suspension is higher to post-construction settlement of subgrade, bedding long-time stability and life requirement, when
When circuit is located at foundation stabilization location, the construction period is long to take traditional support rail girder construction pattern to exist, and construction quality is not easily-controllable
System, the defect such as whole structural stability is poor and less economical.
Utility model content
For the disadvantages described above or Improvement requirement of prior art, it is double that the utility model provides medium-and low-speed maglev traffic engineering
Line excavation location pile foundation joist type support rail girder construction, can avoid the low defect for putting circuit support rail girder construction of tradition, and construction quality is more
It is easily controlled, low speed magnetic suspension traffic engineering track structure is to support rail girder construction during long-time stability are more preferable, and it both meets
Deformation and settlement after construction requirement high, meet the requirement of bedding long-time stability, durability and construction quality controllability again.
To achieve the above object, according to the utility model, there is provided the stake of medium-and low-speed maglev traffic engineering two-wire excavation location
Base beam type support rail girder construction, it is characterised in that including pile foundation bearing structure, reinforced concrete supporting beam, armored concrete support rail
Beam base plate, two placing of reinforcement concrete beam-type structures and support rail beam both sides backfill filler, wherein,
The pile foundation bearing structure is provided with many, and the every pile foundation bearing structure is vertically arranged, and every institute
Accept the reinforced concrete supporting beam in the top for stating pile foundation bearing structure；
The reinforced concrete supporting beam accepts the armored concrete support rail beam base plate；
The top of the pile foundation bearing structure is embedded in the reinforced concrete supporting beam and its rigid connection, the armored concrete support
Beam and the armored concrete support rail beam base plate rigid connection or overlap joint, the armored concrete support rail beam base plate and the reinforced concrete
Native girder structure is integrally formed so as to collectively form armored concrete support rail beam；
It is provided with the reinforced concrete supporting beam for limiting the armored concrete support rail beam base plate lateral displacement
Convex 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
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
Gutter is provided with, the gutter is provided with 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 pile foundation bearing structure is stretched into supporting course after passing through the soft stratum, with soft stratum
When producing sedimentation, the pile foundation bearing structure can bear negative friction, so as to provide stabilization to reinforcing bar armored concrete support rail beam
Bearing capacity, in case support rail beam both sides backfill filler differential settlement reduction armored concrete support rail beam it is vertical, longitudinal direction and
Lateral stiffness.
Preferably, the 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 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, pile foundation bearing structure described in all these is arranged in ranks.
Preferably, the cross fall of weathering section is 3%~5% between the line, and head fall is not less than 2 ‰.
Preferably, the position reinforced concrete supporting beam in support rail beam internode seam is overlapped with support rail beam base plate using pin, institute
Stating pin includes pre-buried connection reinforcing bar, pitch hemp cut and stainless steel sleeve pipe, and the pre-buried connection reinforcing bar is located at the stainless steel sleeve
The pitch hemp cut is fixedly installed in pipe and between the two.
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 pile foundation bearing structure, structural reliability is high.
(2) pile foundation bearing structure of the present utility model is goed deep into supporting course, and when roadbed produces certain sedimentation, pile foundation carries knot
Structure can still bear negative friction and provide stronger bearing capacity, it is to avoid uneven heavy caused by foundation stabilization is difficult to control
, influence of vertical and horizontal rigidity vertical to support rail beam is dropped, and structure vertical cross stiffness and structural reliability are more excellent.
(3) pile foundation bearing structure control settlement effect of the present utility model preferably, therefore can save cutting bedding ground and add
Gu and reduce cutting bedding replacement thickness, need to only meet the requirement of basic replacement thickness, can investment reduction, shorten the duration, have
Obvious technology and economic advantages.
(4) 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.
(5) 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.
Brief description of the drawings
Fig. 1 is schematic cross-sectional view of the present utility model；
Fig. 2 is schematic longitudinal section of the present utility model；
Fig. 3 is the distribution schematic diagram of the utility model pile foundation bearing structure；
Fig. 4 is the connection diagram of armored concrete support rail beam base plate and pile foundation bearing structure in the utility model.
Fig. 5 is the utility model pile foundation joist and armored concrete support rail beam base plate rigid connection connection diagram.
Fig. 6 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. 6 of reference picture, medium-and low-speed maglev traffic engineering two-wire excavation location pile foundation joist type support rail girder construction, including
Pile foundation bearing structure 3, reinforced concrete supporting beam 90, armored concrete support rail beam base plate 2, two placing of reinforcement concrete beam-type structures 1
Filler 4 is backfilled with support rail beam both sides, wherein,
The pile foundation bearing structure 3 is provided with many, and the every pile foundation bearing structure 3 is vertically arranged, and every
Accept the reinforced concrete supporting beam 90 in the top of the pile foundation bearing structure 3；
The reinforced concrete supporting beam 90 accepts the armored concrete support rail beam base plate 2；
Accept the reinforced concrete beam type structure 1 in the top of the armored concrete support rail beam base plate 2；
The top of the pile foundation bearing structure 3 is embedded in the reinforced concrete supporting beam 90 and its rigid connection, the reinforced concrete
Native joist 90 and the rigid connection of armored concrete support rail beam base plate 2 or overlap joint, the armored concrete support rail beam base plate 2 with it is described
Reinforced concrete beam type structure 1 is integrally formed so as to collectively form armored concrete support rail beam 9；
It is provided with the reinforced concrete supporting beam 90 for limiting the lateral displacement of armored concrete support rail beam base plate 2
Convex gear platform 91；
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
Gutter 7 is provided with by the of 4, the gutter 7 is provided with weathering 8 away from the side of support rail beam both sides backfill filler 4；
The armored concrete support rail beam base plate 2 is located in support rail beam both sides backfill filler 4；
The every lower end of the pile foundation bearing structure 3 is stretched into supporting course 6 after passing through the soft stratum 5, with weakness
When stratum 5 produces sedimentation, the pile foundation bearing structure 3 can bear negative friction, so as to be carried to reinforcing bar armored concrete support rail beam 9
For the bearing capacity of stabilization, in case the differential settlement reduction armored concrete support rail beam 9 of support rail beam both sides backfill filler 4 is perpendicular
To, vertical and horizontal rigidity.
Further, the pile foundation bearing structure 3 is cast-in-situ bored pile, joist and support rail beam base plate rigid connection or overlap joint, with stake
Base bearing structure rigid connection.Overlapped using pin with support rail beam base plate in the position joist of support rail beam internode seam, remaining position uses
Rigid connection.
The pin 10 includes pre-buried connection reinforcing bar 10.1, pitch hemp cut 10.2 and stainless steel sleeve pipe 10.3, described pre-buried
Connection reinforcing bar 10.1 is located in the stainless steel sleeve pipe 10.3 and the pitch hemp cut 10.2 is fixedly installed between the two.
The 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.
Armored concrete support rail beam 9 of the present utility model uses reinforced concrete soil scene one-piece casting, to directly take on rail
Road load and the magnetic-levitation train load of track transmission, then deadweight and upper load are passed to the pile foundation carrying knot of the connection of lower section
Structure 3, structural reliability is high, can reduce cutting bedding replacement thickness, need to only meet the requirement of basic replacement thickness, can save throwing
Money, shortens the duration, with obvious technology and economic advantages.
Pile foundation bearing structure 3 uses cast-in-situ bored pile, and transverse direction and longitudinal direction is filled with many reinforced concrete drillings are arranged with
Note stake, vertical and horizontal rigidity is big；And pile foundation bearing structure 3 gos deep into supporting course 6, when soft stratum 5 produces sedimentation, pile foundation is carried
Knot can still bear negative friction and provide stronger bearing capacity to armored concrete support rail beam base plate 2.
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 3；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.
Two placing of reinforcement concrete beam-type structures of two-wire are combined by reinforced concrete floor simultaneously, Ke Yiyou
Effect increases the lateral stiffness of reinforced concrete beam type structure, left and right two is saved reinforced concrete beam type structure and is placed in rigidity identical
On reinforced concrete floor, the lateral stability of reinforced concrete beam type structure can be effectively increased, control reinforced beam
Relative settlement between formula structure, also beneficial to operation during maintenance with safeguard, measure is simple, easily construction, cost save, effect
It is good.
The specific making step of the utility model is as follows：
(1) 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；
(2) subgrade cross section, vertical section direction construction drill bored concrete pile are in reinforced concrete floor bottom surface absolute altitude, i.e.,
Pile foundation bearing structure 3, drilled pile construction should be using the construction technology small to filling roadbed disturbance；Being reached in cast-in-situ bored pile will
After seeking intensity, pile crown, colligation concrete floor and the connection reinforcing bar with stake are amputated by code requirement；
(3) it is long to joist 90, convex gear platform 91, armored concrete support rail beam base plate 2 and armored concrete according to design section
Face is backfilled between the merogenesis formwork erection of girder structure 1, reinforced concrete beam type structure and makes intilted weathering and by design requirement
Top layer waterproof is carried out, all kinds of built-in fittings such as pin 10, sleeper pedestal connection reinforcing bar, water conservancy diversion are carried out in one-time-concreting shaping before pouring
The positioning of rail bearing built-in fitting etc. and installation；
(4) each part concrete distinguishes form removal after reaching design strength, then by armored concrete support rail beam base plate 2
Bedding filler backfill in thickness range, backfill face is made outward-dipping weathering 8, top layer waterproof is carried out by design requirement, and
Weathering 8 on gutter 7 and gutter 7 is carried out, that is, is formed one kind and is put circuit pair for middle low speed magnetic suspension traffic engineering to be low
Line excavation location pile foundation joist type support rail girder construction.
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 (6)
1. medium-and low-speed maglev traffic engineering two-wire excavation location pile foundation joist type support rail girder construction, it is characterised in that including pile foundation
Bearing structure, reinforced concrete supporting beam, armored concrete support rail beam base plate, two placing of reinforcement concrete beam-type structures and support rail beam two
Side backfills filler, wherein,
The pile foundation bearing structure is provided with many, and the every pile foundation bearing structure is vertically arranged, and the every stake
Accept the reinforced concrete supporting beam in the top of base bearing structure；
The reinforced concrete supporting beam accepts the armored concrete support rail beam base plate；
The top of the pile foundation bearing structure is embedded in the reinforced concrete supporting beam and its rigid connection, the reinforced concrete supporting beam with
The armored concrete support rail beam base plate rigid connection or overlap joint, the armored concrete support rail beam base plate and the reinforced beam
Formula structural integrity is molded so as to collectively form armored concrete support rail beam；
The convex for limiting the armored concrete support rail beam base plate lateral displacement is provided with the reinforced concrete supporting beam
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 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 gutter, the gutter is provided with 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 pile foundation bearing structure is stretched into supporting course after passing through the soft stratum, is produced with soft stratum
During sedimentation, the pile foundation bearing structure can bear negative friction, so as to provide holding for stabilization to reinforcing bar armored concrete support rail beam
Power is carried, in case vertical, the vertical and horizontal of the differential settlement reduction armored concrete support rail beam of support rail beam both sides backfill filler
Rigidity.
2. pile foundation joist type support rail girder construction in medium-and low-speed maglev traffic engineering two-wire excavation location according to claim 1,
Characterized in that, the pile foundation bearing structure is cast-in-situ bored pile, joist and support rail beam base plate rigid connection or overlap joint are carried with pile foundation
Structure rigid connection.
3. pile foundation joist type support rail girder construction in medium-and low-speed maglev traffic engineering two-wire excavation location according to claim 1,
Characterized in that, the pile foundation bearing structure is cast-in-situ bored pile, joist and support rail beam base plate rigid connection or overlap joint are carried with pile foundation
Structure rigid connection.
4. pile foundation joist type support rail girder construction in medium-and low-speed maglev traffic engineering two-wire excavation location according to claim 1,
Characterized in that, pile foundation bearing structure described in all these is arranged in ranks.
5. pile foundation joist type support rail girder construction in medium-and low-speed maglev traffic engineering two-wire excavation location according to claim 1,
Characterized in that, the cross fall of weathering section is 3%~5% between the line, head fall is not less than 2 ‰.
6. pile foundation joist type support rail girder construction in medium-and low-speed maglev traffic engineering two-wire excavation location according to claim 1,
Characterized in that, the position reinforced concrete supporting beam in support rail beam internode seam is overlapped with support rail beam base plate using pin, the pin
Nail includes pre-buried connection reinforcing bar, pitch hemp cut and stainless steel sleeve pipe, and the pre-buried connection reinforcing bar is located in the 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 |
|---|---|---|---|
| CN201621058039.XU CN206219896U (en) | 2016-09-15 | 2016-09-15 | Medium-and low-speed maglev traffic engineering two-wire excavation location pile foundation joist type support rail girder construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621058039.XU CN206219896U (en) | 2016-09-15 | 2016-09-15 | Medium-and low-speed maglev traffic engineering two-wire excavation location pile foundation joist type support rail girder construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206219896U true CN206219896U (en) | 2017-06-06 |
Family
ID=58783237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621058039.XU Withdrawn - After Issue CN206219896U (en) | 2016-09-15 | 2016-09-15 | Medium-and low-speed maglev traffic engineering two-wire excavation location pile foundation joist type support rail girder construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206219896U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758556A (en) * | 2016-09-15 | 2017-05-31 | 中铁第四勘察设计院集团有限公司 | Medium-and low-speed maglev traffic engineering two-wire excavation location pile foundation joist type support rail girder construction |
-
2016
- 2016-09-15 CN CN201621058039.XU patent/CN206219896U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758556A (en) * | 2016-09-15 | 2017-05-31 | 中铁第四勘察设计院集团有限公司 | Medium-and low-speed maglev traffic engineering two-wire excavation location pile foundation joist type support rail girder construction |
| CN106758556B (en) * | 2016-09-15 | 2018-04-10 | 中铁第四勘察设计院集团有限公司 | Medium-and low-speed maglev traffic engineering two-wire excavation location pile foundation joist type support rail girder construction |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170606 Effective date of abandoning: 20180410 |
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