CN206157484U - Moderate -low speed magnetic levitation traffic engineering single line location supporting beam of pile foundation formula support rail girder construction of filling - Google Patents
Moderate -low speed magnetic levitation traffic engineering single line location supporting beam of pile foundation formula support rail girder construction of filling Download PDFInfo
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- CN206157484U CN206157484U CN201621057171.9U CN201621057171U CN206157484U CN 206157484 U CN206157484 U CN 206157484U CN 201621057171 U CN201621057171 U CN 201621057171U CN 206157484 U CN206157484 U CN 206157484U
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- support rail
- rail beam
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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 location supporting beam of pile foundation formula support rail girder construction of filling is disclosed, roadbed filler and support rail roof beam both sides are backfilled and are packed under pile foundation load bearing structure, reinforced concrete joist, reinforced concrete support rail breast board, reinforced concrete beam structure, support rail roof beam, and pile foundation load bearing structure is provided with many, accept at the top of reinforced concrete support rail breast board reinforced concrete beam structure, support rail roof beam both sides are backfilled to pack and are passed through roadbed filler accepts under the support rail roof beam. The utility model discloses can avoid the low defect of putting circuit support rail girder construction of tradition, long term stability is better, and low -speed maglev traffic engineering track structure satisfied the requirement of foundation bed long term stability, durability and construction quality's controllability again to support rail roof beam structural distortion and post -construction settlement's high requirement during it had both satisfied moreover, and just 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 embankment location support rail girder construction pattern.
Background technology
Middle low speed magnetic suspension track traffic belongs to a kind of novel traffic mode, and achievement in research both domestic and external is less, the whole world
The circuit for opening operation is even more minority.The middle low speed magnetic suspension railway business that only in March, 2005 Japan's construction 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 embankment earth structure, embankment 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, therefore is also needed to while carrying out consolidation process, roadbed filling slope groundwork to ground
Area increase is reinforced, cost is high, long in time limit；And basement process belongs to disguised engineering, arranged using conventional reinforced soft soil ground
Apply and reinforced, construction quality is wayward.
(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 embankment 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
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 request of settlement after construction, meet the requirement of the controllability of bedding long-time stability, durability and construction quality again, and
Economy is more preferably.
For achieving the above object, the utility model provides medium-and low-speed maglev traffic engineering single line embankment location pile foundation joist
Formula 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,
Roadbed filling and support rail beam both sides backfill filler under reinforced concrete beam type structure, support rail beam, wherein,
The pile foundation bearing structure is provided with many, is vertically arranged per pile foundation bearing structure described in root, and the institute per root
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；
Accept the reinforced concrete beam type structure in the top of 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 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 armored concrete support rail beam base plate and the reinforced concrete
Native girder structure formed by integrally casting is molded 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；
Roadbed filling is arranged between shallow layer reinforcement area and the armored concrete support rail beam base plate under the support rail beam, with
It is flat for providing construction for the armored concrete support rail beam base plate, reinforced concrete supporting beam and support rail beam both sides backfill filler
Platform, and provide lateral support for the pile foundation bearing structure；Wherein, the shallow layer reinforcement area is arranged on the superficial of soft stratum
Layer, and under the shallow layer reinforcement area, the support rail beam roadbed filling and the reinforced concrete beam type structure vertical consistency；
The support rail beam both sides backfill filler is accepted by roadbed filling under the support rail beam, and the support rail beam both sides
Backfill filler props up the both sides of the armored concrete support rail beam base plate, to play protection to the armored concrete support rail beam base plate
Act on and constrain the transverse shifting of the armored concrete support rail beam base plate, and maintenance passage is provided；
Roadbed filling and support rail beam both sides backfill filler collectively form filler filling body under the support rail beam, described to fill out
Material filling body both sides are provided with weathering；
Roadbed filling under the support rail beam, the shallow layer reinforcement area are sequentially passed through per the lower end of pile foundation bearing structure described in root
With stretch into after the soft stratum in supporting course, with soft stratum produce sedimentation when, the pile foundation bearing structure can bear negative
Frictional resistance, so as to provide stable bearing capacity to armored concrete support rail beam base plate and reinforced concrete beam type structure, to reduce
Because of the adverse effect that the sedimentation of filler filling body is produced to the vertical of armored concrete support rail beam, vertical and horizontal rigidity.
Preferably, the pile foundation bearing structure is cast-in-situ bored pile, reinforced concrete supporting beam and support rail beam base plate just connect or
Overlap joint, just connects with pile foundation bearing structure.Overlapped using pin in the position of support rail beam internode seam, remaining position adopts and just connects.
Preferably, the support rail beam both sides backfill the height of filler and the height phase of the armored concrete support rail beam base plate
Deng.
Preferably, pile foundation bearing structure described in all these is arranged in ranks.
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 pile foundation bearing structure, structural reliability is high.
(2) pile foundation bearing structure of the present utility model is goed deep in supporting course, and when embankment produces certain sedimentation, pile foundation carries knot
Structure can still bear negative friction and provide stronger bearing capacity, it is to avoid because filling compaction and foundation stabilization quality it is wayward
The differential settlement for causing is vertical to support rail beam, vertical and horizontal rigidity impact, structure vertical cross stiffness and structural reliability
It is more excellent.
(3) put circuit soft soil zone low, according to embankment stability need necessity is carried out to the superficial layer of soft stratum
Reinforcing, its reinforcement depth by embankment stability control, compared to by settle and tradition when stable Two indices are controlled solely
For base reinforcing mode, shallow layer reinforcement area reinforcement depth is little, can effective control roadbed reclamation and roadbed with reference to pile foundation bearing structure
Settlement after construction.Non- soft soil zone can more avoid the stiffening basic ground of the wide area produced after embankment slope, and
Pile foundation bearing structure construction quality is more easy to control, can effective control construction quality, 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 reinforced concrete supporting beam laterally connects
Effect is connect, the lateral stiffness of structure and the ability of opposing differential settlement deformation is also increased, the quantity of transverse pile foundation can be reduced,
Reduce investment.
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 that the utility model pile foundation reinforced concrete supporting beam has just connect connection signal with armored concrete support rail beam base plate
Figure.
Fig. 5 is that the utility model pile foundation reinforced concrete supporting beam overlaps connection signal with armored concrete support rail beam base plate
Figure.
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 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. 6, medium-and low-speed maglev traffic engineering single line embankment location pile foundation joist type support rail girder construction, including
Pile foundation bearing structure 3, reinforced concrete supporting beam 90, armored concrete support rail beam base plate 2, reinforced concrete beam type structure 1, support rail
Roadbed filling 5 and support rail beam both sides backfill filler 4 under beam, wherein,
The pile foundation bearing structure 3 is provided with many, is vertically arranged per pile foundation bearing structure 3 described in root, and per root
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 just connects with it, the reinforced concrete
Native joist 90 has just connect or has overlapped with the armored concrete support rail beam base plate 2, 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；
Under the support rail beam roadbed filling 5 be arranged on shallow layer reinforcement area 6 and the armored concrete support rail beam base plate 2 it
Between, for be the armored concrete support rail beam base plate 2, reinforced concrete supporting beam 90 and support rail beam both sides backfill filler 4 carry
For operation platform, and lateral support is provided for the pile foundation bearing structure 3；Wherein, the shallow layer reinforcement area 6 is arranged on flabbily
The superficial layer of layer 7, and roadbed filling 5 and the reinforced concrete beam type structure under the shallow layer reinforcement area 6, the support rail beam
1 vertical consistency；
The support rail beam both sides backfill filler 4 is accepted by roadbed filling 5 under the support rail beam, and the support rail beam two
Side backfill filler 4 props up the both sides of the armored concrete support rail beam base plate 2, with to the armored concrete support rail beam base plate 2
The transverse shifting of the armored concrete support rail beam base plate 2 is shielded and constrained, and maintenance passage is provided；
Roadbed filling 5 and support rail beam side backfill filler 4 collectively form filler filling body 10 under the support rail beam, described
The both sides of filler filling body 10 are provided with weathering 11；
Roadbed filling 5, the shallow layer reinforcement under the support rail beam are sequentially passed through per the lower end of pile foundation bearing structure 3 described in root
Stretch into behind area 6 and the soft stratum 7 in supporting course 8, so that when soft stratum 7 produces sedimentation, the pile foundation bearing structure 3 can
Negative friction is born, so as to provide stable carrying to armored concrete support rail beam base plate 2 and reinforced concrete beam type structure 1
Power, is produced not with the sedimentation reduced because backfilling packing section 10 to the vertical of armored concrete support rail beam 9, vertical and horizontal rigidity
Profit affects.
Further, the pile foundation bearing structure 3 is cast-in-situ bored pile, reinforced concrete supporting beam and support rail beam base plate just connect or
Overlap joint, just connects with pile foundation bearing structure.Pin is adopted in the position reinforced concrete supporting beam of support rail beam internode seam with support rail beam base plate
Nail overlap joint, remaining position adopts and just connects.
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 arranges between the two the pitch hemp cut 10.2.
The height of the support rail beam both sides backfill filler 4 and highly equal, the institute of the armored concrete support rail beam base plate 2
These the described pile foundation bearing structures 3 having are 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 that engineering caused by traditional foundation stabilization measure is huge, invest big, long in time limit, and basement process and embankment
Construction quality is wayward, the problem of bedding long-time stability and poor durability, so as to improve low circuit support rail girder construction of putting
Reliability, reduces the engineering risk of traditional structure pattern.
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 pile foundation carrying
Structure 3, structural reliability is high, can save the large area stiffening basic ground produced after traditional embankment slope.
Pile foundation bearing structure 3 adopts cast-in-situ bored pile, transverse direction and longitudinal direction to fill 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 8, when soft stratum 7 produces sedimentation, pile foundation is carried
Structure 3 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.
It is low put circuit by soft soil zone when, should according to embankment stability need ground superficial layer is carried out it is necessary plus
Gu, form shallow layer reinforcement area 6., by embankment stability control, its reinforcement depth should be according to embankment for the reinforcement depth in shallow layer reinforcement area 6
Raising, foundation condition are determined by stability calculation.Compared to traditional single ground when being controlled by sedimentation and stable Two indices
For reinforcing mode, the reinforcement depth of shallow layer reinforcement area 6 is little, can effective control roadbed reclamation and roadbed with reference to pile foundation bearing structure 3
Settlement after construction.By contrast, the new structure foundation stabilization quantity is little, invests little, and more conducively construction quality and settlement after construction
Control, and save cost and reduction of erection time.
The specific making step of the utility model is as follows：
(1) smooth construction site, according to design requirement necessary shallow layer foundation consolidation process is carried out, and forms shallow layer reinforcement area
6, then placement in layers is required according to embankment and be densified to reinforced concrete floor bottom surface absolute altitude；
(2) irrigate in embankment subgrade cross section, vertical section direction construction drill in reinforced concrete floor bottom surface absolute altitude
Stake, i.e. pile foundation bearing structure 3, drilled pile construction should be adopted and disturb little construction technology to railway embankment, if necessary in embankment
Steel pile casting is set in the range of filled height or draws hole；After cast-in-situ bored pile reaches desired strength, pile crown is amputated by code requirement,
Assembling reinforcement concrete joist and the connection reinforcing bar with stake；
(3) formwork erection of platform 91, one-time-concreting shaping, before pouring are kept off to reinforced concrete supporting beam 90, convex according to design attitude
Carry out all kinds of built-in fittings such as pin 10 and the positioning with the connection reinforcing bar of pile foundation and install, concrete reaches and removed after design strength
Template；
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 sleeper pedestal connection reinforcing bar, water conservancy diversion rail bearing built-in fitting, pile foundation connection are carried out before pouring
The positioning of reinforcing bar etc. and installation；
(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 and carries out top layer waterproof i.e. by design requirement
Can.
As it will be easily appreciated by one skilled in the art that 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 embankment location pile foundation joist type support rail girder construction, it is characterised in that including pile foundation
Bearing structure (3), reinforced concrete supporting beam (90), armored concrete support rail beam base plate (2), reinforced concrete beam type structure (1),
Roadbed filling (5) and support rail beam both sides backfill filler (4) under support rail beam, wherein,
The pile foundation bearing structure (3) is provided with many, is vertically arranged per pile foundation bearing structure (3) described in root, and per root
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 just connects with it, the reinforced concrete
Native joist (90) has just connect or has overlapped with the armored concrete support rail beam base plate (2), the armored concrete support rail beam base plate (2)
It is molded so as to collectively form armored concrete support rail beam (9) with reinforced concrete beam type structure (1) formed by integrally casting；
Reinforced concrete supporting beam (90) both sides are provided with for limiting the armored concrete support rail beam base plate (2) laterally position
Convex gear platform (91) of shifting；
Under the support rail beam roadbed filling (5) be arranged on shallow layer reinforcement area (6) and the armored concrete support rail beam base plate (2) it
Between, for backfilling filler for the armored concrete support rail beam base plate (2), reinforced concrete supporting beam (90) and support rail beam both sides
(4) operation platform is provided, and lateral support is provided for the pile foundation bearing structure (3)；Wherein, the shallow layer reinforcement area (6) sets
Put roadbed filling (5) and the steel under the superficial layer in soft stratum (7), and the shallow layer reinforcement area (6), the support rail beam
Reinforced concrete beam type structure (1) vertical consistency；
Support rail beam both sides backfill filler (4) are accepted by roadbed filling (5) under the support rail beam, and the support rail beam two
Side backfill filler (4) props up the both sides of the armored concrete support rail beam base plate (2), with to the armored concrete support rail beam
Base plate (2) shields and constrains the transverse shifting of the armored concrete support rail beam base plate (2), and provides maintenance and lead to
Road；
Roadbed filling (5) and support rail beam both sides backfill filler (4) collectively form filler filling body (10) under the support rail beam,
Described filler filling body (10) both sides are provided with weathering (11)；
Roadbed filling (5), the shallow layer reinforcement under the support rail beam is sequentially passed through per the lower end of pile foundation bearing structure (3) described in root
Stretch into behind area (6) and the soft stratum (7) in supporting course (8), so that when soft stratum (7) produces sedimentation, the pile foundation is held
Carrying structure (3) can bear negative friction, so as to for armored concrete support rail beam base plate (2) and reinforced concrete beam type structure (1)
Stable bearing capacity is provided, to reduce because the sedimentation of filler filling body (10) is to the vertical, longitudinal of armored concrete support rail beam (9)
The adverse effect produced with lateral stiffness.
2. pile foundation joist type support rail girder construction in medium-and low-speed maglev traffic engineering single line embankment location according to claim 1,
Characterized in that, the pile foundation bearing structure (3) is cast-in-situ bored pile, reinforced concrete supporting beam has just connect or has taken with support rail beam base plate
Connect, just connect with pile foundation bearing structure.
3. pile foundation joist type support rail girder construction in medium-and low-speed maglev traffic engineering single line embankment 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, remaining position
Put to adopt and just connect.
4. pile foundation joist type support rail girder construction in medium-and low-speed maglev traffic engineering single line embankment location according to claim 1,
Characterized in that, the support rail beam both sides backfill the height of filler (4) and the height of the armored concrete support rail beam base plate (2)
It is equal.
5. pile foundation joist type support rail girder construction in medium-and low-speed maglev traffic engineering single line embankment location according to claim 1,
Characterized in that, pile foundation bearing structure (3) described in all these is arranged in ranks.
6. pile foundation joist type support rail girder construction in medium-and low-speed maglev traffic engineering single line embankment location according to claim 3,
Characterized in that, the pin includes pre-buried connection reinforcing bar, pitch hemp cut and stainless steel sleeve pipe, the pre-buried connection reinforcing bar is located at
The pitch hemp cut is set in the stainless steel sleeve pipe and between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057171.9U CN206157484U (en) | 2016-09-15 | 2016-09-15 | Moderate -low speed magnetic levitation traffic engineering single line location supporting beam of pile foundation formula support rail girder construction of filling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057171.9U CN206157484U (en) | 2016-09-15 | 2016-09-15 | Moderate -low speed magnetic levitation traffic engineering single line location supporting beam of pile foundation formula support rail girder construction of filling |
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| Publication Number | Publication Date |
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| CN206157484U true CN206157484U (en) | 2017-05-10 |
Family
ID=58650312
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| CN201621057171.9U Withdrawn - After Issue CN206157484U (en) | 2016-09-15 | 2016-09-15 | Moderate -low speed magnetic levitation traffic engineering single line location supporting beam of pile foundation formula support rail girder construction of filling |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283955A (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 embankment location pile foundation joist type support rail girder construction |
| CN108951335A (en) * | 2018-09-06 | 2018-12-07 | 四川省交通运输厅公路规划勘察设计研究院 | A kind of light-duty escarpment road structure |
-
2016
- 2016-09-15 CN CN201621057171.9U patent/CN206157484U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283955A (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 embankment location pile foundation joist type support rail girder construction |
| CN106283955B (en) * | 2016-09-15 | 2017-12-12 | 中铁第四勘察设计院集团有限公司 | Medium-and low-speed maglev traffic engineering single line embankment location pile foundation joist type support rail girder construction |
| CN108951335A (en) * | 2018-09-06 | 2018-12-07 | 四川省交通运输厅公路规划勘察设计研究院 | A kind of light-duty escarpment road structure |
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Granted publication date: 20170510 Effective date of abandoning: 20171212 |