CN206157486U - Moderate -low speed magnetic levitation traffic engineering single line excavation location pile foundation combined type support rail girder construction - Google Patents
Moderate -low speed magnetic levitation traffic engineering single line excavation location pile foundation combined type support rail girder construction Download PDFInfo
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- CN206157486U CN206157486U CN201621057975.9U CN201621057975U CN206157486U CN 206157486 U CN206157486 U CN 206157486U CN 201621057975 U CN201621057975 U CN 201621057975U CN 206157486 U CN206157486 U CN 206157486U
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- support rail
- pile foundation
- bearing structure
- rail beam
- base plate
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Abstract
The utility model belongs to the technical field of the low circuit of putting of well low -speed maglev traffic engineering to moderate -low speed magnetic levitation traffic engineering single line excavation location pile foundation combined type support rail girder construction is disclosed, backfill including first pile foundation load bearing structure, the compound load bearing structure of supporting beam of pile foundation, reinforced concrete support rail breast board, reinforced concrete beam structure and support rail roof beam both sides and pack, first pile foundation load bearing structure is provided with many, every accept on first pile foundation load bearing structure's top reinforced concrete support rail breast board, accept on the top of reinforced concrete support rail breast board reinforced concrete beam structure, the other escape canal that is provided with of packing is backfilled to support rail roof beam both sides, the escape canal is kept away from support rail roof beam both sides and is backfilled the one side of packing be provided with draining slope. The utility model discloses low -speed maglev traffic engineering track structure can satisfy the requirement of foundation bed long term stability, durability and construction quality controllability again to support rail roof beam structural distortion and the high requirement of post -construction settlement in can satisfying, and economic nature is better.
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 single line 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 minority.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 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
It is made up of roadbed under the section of track, support rail beam and support rail beam, the support rail beam of supporting track is arranged on the roadbed being made up of earth structure
On, the operation of middle low speed magnetic suspension train includes suspending, be oriented to, drive and braking being required for what is completed on support rail beam.Magnetic
Aerotrain is very high to line construction deformation requirements, because the deformation of structure very little may affect 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 and exist on circuit problems with middle low speed magnetic suspension traffic low putting：
(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 wayward, and the later stage is susceptible to deformation, and settlement after construction is difficult to control to.
(2) low circuit support rail girder construction of putting has high demands to the settlement after construction of roadbed and ground, and is routed through the ground in region
Matter condition is typically all complicated and changeable, is controlled using conventional support rail beam structure construction difficult 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, the utility model provides medium-and low-speed maglev traffic engineering list
Line excavation location pile foundation combined type support rail girder construction, can avoid the low defect for putting circuit support rail girder construction of tradition, and construction quality is more
Be easily controlled, long-time stability more preferably, and during it both meets low speed magnetic suspension traffic engineering track structure to support rail girder construction
Deformation and the high requirement of settlement after construction, meet the requirement of bedding long-time stability, durability and construction quality controllability again.
For achieving the above object, according to the utility model, there is provided medium-and low-speed maglev traffic engineering single line excavation location stake
Base combined type support rail girder construction, it is characterised in that including the first pile foundation bearing structure, pile foundation joist composite bearing structure, reinforcing bar
Concrete support rail beam base plate, reinforced concrete beam type structure and support rail beam both sides backfill filler, 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, is vertically arranged per the first pile foundation bearing structure described in root, and
And the armored concrete support rail beam base plate is accepted on the top per the first pile foundation bearing structure described in root, first pile foundation is held
Load structure top end is embedded in the armored concrete support rail beam base plate and just connects with it；
Accept the reinforced concrete beam type structure, 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 the adjacent two pieces 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 per the second pile foundation bearing structure described in root, 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 just connects with it, the reinforced concrete
Native joist has just connect or has overlapped with the armored concrete support rail beam base plate；
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；
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 that the 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；
Lower end per the first pile foundation bearing structure described in root is stretched in supporting course through after 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
Stable bearing capacity is provided, in case the differential settlement of support rail beam both sides backfill filler reduces the perpendicular of armored concrete support rail beam
To, vertical and horizontal rigidity.
Preferably, the first pile foundation bearing structure is cast-in-situ bored pile, and joist has just connect or overlapped with support rail beam base plate, with
Pile foundation bearing structure just connects.Overlapped using pin with support rail beam base plate in the position joist of support rail beam internode seam, remaining position is adopted
With just connecing.
Preferably, the first pile foundation bearing structure described in all these is arranged in ranks.
Preferably, roadbed filling under the support rail beam, shallow is sequentially passed through per the lower end of the second pile foundation bearing structure described in root
Stretch in supporting course after layer stabilization zone and the soft stratum.
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 adopt reinforced concrete
Soil scene one-piece casting, the two composition integral reinforced concrete structure is floated to the magnetic for directly taking on track load and track transmission
Train load, then deadweight and upper load are passed to and 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 in 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 make because foundation stabilization quality is wayward
Into differential settlement is vertical to support rail beam, vertical and horizontal rigidity impact, structure vertical cross stiffness and structural reliability are more
It is excellent.
(3) the first pile foundation bearing structure control settlement effect of the present utility model is preferable, therefore can save cutting bedding ground
Base is reinforced and reduces cutting bedding replacement thickness, need to only meet the requirement of basic replacement thickness, can investment reduction, the reduction of erection time,
With obvious technology and economic advantages.
(4) reinforced concrete supporting beam that pile foundation bearing structure and reinforced concrete floor are arranged, 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 opposing differential settlement deformation, the quantity of transverse pile foundation can have been reduced, reduce investment.
(5) adjacent segments armored concrete support rail beam base plate internode shares pile foundation joist composite bearing structure, and adjacent
Armored concrete support rail beam base plate between reserve expansion joint, can avoid encorbelmenting impact failure of the section by train load, and reduce
The impact of temperature stress and shrinkage and creep.
Description of the drawings
Fig. 1 is schematic longitudinal section of the present utility model；
Fig. 2 is along the profile of I-I line in Fig. 1；
Fig. 3 is along the profile of II-II line in Fig. 1；
Fig. 4 is that the plane distribution of the first pile foundation bearing structure and pile foundation joist composite bearing structure in the utility model is illustrated
Figure；
Fig. 5 is the connection diagram of armored concrete support rail beam base plate and the first pile foundation bearing structure in the utility model.
Fig. 6 is that reinforced concrete supporting beam has just connect connection diagram with pile foundation bearing structure in the utility model.
Fig. 7 is that reinforced concrete supporting beam overlaps connection diagram with pile foundation bearing structure in the utility model.
Fig. 8 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 enforcement
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.Additionally, institute in the utility model disclosed below each embodiment
As long as the technical characteristic being related to does not constitute each other conflict and just can be mutually combined.
Reference Fig. 1～Fig. 7, medium-and low-speed maglev traffic engineering single line excavation location pile foundation combined type support rail girder construction, including
First pile foundation bearing structure 3, armored concrete support rail beam base plate 2, reinforced concrete beam type structure 1 and support rail beam both sides are filled out
Material 4, 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, is vertically arranged per the first pile foundation bearing structure 3 described in root,
And accept the armored concrete support rail beam base plate 2 per the top of the first pile foundation bearing structure 3 described in root, described first
The top of base bearing structure 3 is embedded in the armored concrete support rail beam base plate 2 and just connects with it；
Accept the reinforced concrete beam type structure 1, and adjacent two in the top of the armored concrete support rail beam base plate 2
Save and expansion joint is set between the armored concrete support rail beam base plate 2；
The pile foundation joist composite bearing structure 90 is provided with the multiple and adjacent two piece armored concrete support rail
Pile foundation joist composite bearing structure 90 described in one is respectively provided with the expansion joint of beam base plate 2, for two pieces of institutes for supporting this adjacent
Armored concrete support rail beam base plate 2 is stated, each described pile foundation joist composite bearing structure 90 includes reinforced concrete supporting beam 901
With the second pile foundation bearing structure 902, and the reinforced concrete is accepted on the top per the second pile foundation bearing structure 902 described in root
Native joist 901, 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 3 is embedded in the reinforced concrete supporting beam 901 and just connects with it, the reinforcing bar
Concrete joist 901 has just connect or has overlapped with the armored concrete support rail beam base plate 2；
The both sides of the reinforced concrete supporting beam 901 are provided with horizontal for limiting the armored concrete support rail beam base plate 2
The convex gear platform 91 of displacement；
Accept the reinforced concrete beam type structure 1, and the steel in the top of the armored concrete support rail beam base plate 2
Reinforced concrete support rail beam base plate 2 is molded with the formed by integrally casting of reinforced concrete beam type structure 1, so as to collectively form reinforced concrete
Native support rail beam 9；
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 that the 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；
Lower end per the first pile foundation bearing structure 3 described in root through stretching in 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 stable bearing capacity, in case the differential settlement of support rail beam both sides backfill filler 4 reduces armored concrete support rail
Vertical, the vertical and horizontal rigidity of beam 9.
Further, the first pile foundation bearing structure 3 is cast-in-situ bored pile, and joist has just connect or overlapped with support rail beam base plate,
Just connect with pile foundation bearing structure.Overlapped using pin with support rail beam base plate in the position joist of support rail beam internode seam, remaining position
Using just connecing or overlap.
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 is fixedly installed between the two the pitch hemp cut 10.2.
First pile foundation bearing structure 3 described in all these is arranged in ranks.
The structural shape can in effectively solving the low circuit of putting of low speed magnetic suspension traffic engineering it is tight to post-construction settlement of subgrade requirement
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 wayward, 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 adopts 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 and its rigidly connected first pile foundation
Bearing structure 3, structural reliability is high, can save the foundation stabilization of cutting bedding and reduce cutting bedding replacement thickness, only needs to meet
The requirement of basic replacement thickness, can investment reduction, the reduction of erection time, with obvious technology and economic advantages.
First pile foundation bearing structure 3 adopts cast-in-situ bored pile, and transverse direction and longitudinal direction has and is arranged with many reinforced concrete drills
Hole pouring pile, vertical and horizontal rigidity is big；And first pile foundation bearing structure 3 go deep into supporting course 6, when soft stratum 5 produces sedimentation,
Pile foundation carries knot and 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 arranged, 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 horizontal stroke of reinforced concrete supporting beam 90
To connection function, the lateral stiffness of structure and the ability of opposing differential settlement deformation are also increased, transverse pile foundation can be reduced
Quantity, reduces investment.
The internode of adjacent segments armored concrete support rail beam base plate 2 shares pile foundation joist composite bearing structure, and adjacent
Expansion joint is reserved between armored concrete support rail beam base plate, impact failure of the section by train load of encorbelmenting can be avoided, and reduce temperature
The impact of degree stress and shrinkage and creep.
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.,
First pile foundation bearing structure 3, drilled pile construction should adopt the construction technology little to filling roadbed disturbance；Reach in cast-in-situ bored pile
To after desired strength, by code requirement pile crown, colligation concrete floor and the connection reinforcing bar with stake are amputated；
(3) it is long to reinforced concrete supporting beam 90, convex gear platform 91, the and of armored concrete support rail beam base plate 2 according to design section
The merogenesis formwork erection of reinforced concrete beam type structure 1, one-time-concreting shaping, carries out all kinds of built-in fittings such as pin 10, sleeper platform before pouring
The positioning of seat connection reinforcing bar, water conservancy diversion rail bearing built-in fitting etc. and installation；
It is (4) long to armored concrete support rail beam base plate 2 and the merogenesis formwork erection of reinforced concrete beam type structure 1 according to design section,
One-time-concreting is molded, and all kinds of built-in fittings such as pin 10, sleeper pedestal connection reinforcing bar, water conservancy diversion rail bearing built-in fitting etc. are carried out before pouring
Positioning with install；
(5) each part concrete reaches and distinguish after design strength form removal, then by armored concrete support rail beam base plate 2
Bedding filler backfill in thickness range, backfill face is made outward-dipping weathering 8, by design requirement top layer waterproof is carried out, and
Weathering 8 on gutter 7 and gutter 7 is carried out, that is, forms a kind of for medium-and low-speed maglev traffic engineering single line excavation location
Pile foundation combined 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
To limit the utility model, all any modifications made within spirit of the present utility model and principle, equivalent and change
Enter, should be included within protection domain of the present utility model.
Claims (6)
1. medium-and low-speed maglev traffic engineering single line excavation location pile foundation combined type support rail girder construction, it is characterised in that including first
Pile foundation bearing structure, pile foundation joist composite bearing structure, armored concrete support rail beam base plate, reinforced concrete beam type structure and hold
Beam-and-rail both sides backfill filler, 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, is vertically arranged per the first pile foundation bearing structure described in root, 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 just connects with it；
The reinforced concrete beam type structure is accepted on the top of the armored concrete support rail beam base plate, and described in two adjacent sections
Expansion joint is set between armored concrete support rail beam base plate；
The pile foundation joist composite bearing structure setting has multiple, and the adjacent two pieces armored concrete support rail beam base plates
Expansion joint at be respectively provided with pile foundation joist composite bearing structure described in, for two pieces of 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 per the second pile foundation bearing structure described in root
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 just connects with it, the armored concrete support
Beam has just connect or has overlapped with the armored concrete support rail beam base plate；
The convex for limiting the armored concrete support rail beam base plate lateral displacement is provided with the reinforced concrete supporting beam
Gear platform；
The support rail beam both sides backfill filler is arranged on soft stratum, and is arranged by support rail beam both sides backfill filler
There is gutter, the gutter is provided with weathering away from the side that the 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；
Lower end per the first pile foundation bearing structure described in root is stretched in supporting course through after the soft stratum, with soft stratum
When producing sedimentation, the first pile foundation bearing structure can bear negative friction, so as to provide to reinforcing bar armored concrete support rail beam
Stable bearing capacity, in case the differential settlement of support rail beam both sides backfill filler reduces the vertical, vertical of armored concrete support rail beam
To and lateral stiffness.
2. pile foundation combined type support rail girder construction in medium-and low-speed maglev traffic engineering single line excavation location according to claim 1,
Characterized in that, the first pile foundation bearing structure is cast-in-situ bored pile, its joist has just connect or has overlapped with support rail beam base plate, with stake
Base bearing structure just connects.
3. pile foundation combined type support rail girder construction in medium-and low-speed maglev traffic engineering single line excavation location according to claim 1,
Characterized in that, the position joist in support rail beam internode seam is overlapped with support rail beam base plate using pin, remaining position adopts and just connects.
4. pile foundation combined type support rail girder construction in medium-and low-speed maglev traffic engineering single line excavation location according to claim 1,
Characterized in that, the first pile foundation bearing structure described in all these is arranged in ranks.
5. pile foundation combined type support rail girder construction in medium-and low-speed maglev traffic engineering single line excavation location according to claim 1,
Characterized in that, roadbed filling, shallow-layer under the support rail beam are sequentially passed through per the lower end of the second pile foundation bearing structure described in root adding
Stretch in supporting course after Gu Qu and the soft stratum.
6. pile foundation combined type support rail girder construction in medium-and low-speed maglev traffic engineering single line excavation location according to claim 3,
Characterized in that, the pin includes pre-buried connection reinforcing bar, pitch hemp cut and stainless steel sleeve pipe, the pre-buried connection reinforcing bar is located at
The pitch hemp cut is fixedly installed in the stainless steel sleeve pipe and between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057975.9U CN206157486U (en) | 2016-09-15 | 2016-09-15 | Moderate -low speed magnetic levitation traffic engineering single line excavation location pile foundation combined type support rail girder construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057975.9U CN206157486U (en) | 2016-09-15 | 2016-09-15 | Moderate -low speed magnetic levitation traffic engineering single line excavation location pile foundation combined type support rail girder construction |
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| Publication Number | Publication Date |
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| CN206157486U true CN206157486U (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621057975.9U Withdrawn - After Issue CN206157486U (en) | 2016-09-15 | 2016-09-15 | Moderate -low speed magnetic levitation traffic engineering single line excavation location pile foundation combined type support rail girder construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283954A (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 traffic engineering single line excavation location pile foundation combined type support rail girder construction |
-
2016
- 2016-09-15 CN CN201621057975.9U patent/CN206157486U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283954A (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 traffic engineering single line excavation location pile foundation combined type support rail girder construction |
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Granted publication date: 20170510 Effective date of abandoning: 20171212 |
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