CN206157485U - Moderate -low speed magnetic levitation single line excavation location pile foundation combined type support rail roof beam transition section structure - Google Patents
Moderate -low speed magnetic levitation single line excavation location pile foundation combined type support rail roof beam transition section structure Download PDFInfo
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- CN206157485U CN206157485U CN201621057172.3U CN201621057172U CN206157485U CN 206157485 U CN206157485 U CN 206157485U CN 201621057172 U CN201621057172 U CN 201621057172U CN 206157485 U CN206157485 U CN 206157485U
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- support rail
- rail beam
- pile foundation
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- armored concrete
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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 single line excavation location pile foundation combined type support rail roof beam transition section structure is disclosed, backfill filler, bridge abutment and headwall 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, support rail roof beam both sides, accept at 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, and 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 long term stability is better, has both satisfied the high requirement to support rail roof beam structural distortion and post -construction settlement, satisfies the requirement of foundation bed long term stability, durability and construction quality's controllability again, effectively realizes magnetic suspension elevated structure and low smooth -going transition of putting circuit changeover portion F rail.
Description
Technical field
The utility model belongs to that middle low speed magnetic suspension traffic engineering is low to put Line technology field, low more particularly, in
Fast magnetic floats single line excavation location support rail beam transition section structure pattern.
Background technology
Middle low speed magnetic suspension track traffic belongs to a kind of novel traffic mode, and achievement in research both domestic and external is less, the whole world
The circuit for opening operation is even more 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, it is rarely seen about elevated structure and the low research put in terms of line transition segment structure and
Using.
In wheel rail high speed railway, there is substantial amounts of bridge changeover portion roadbed, high-speed railway changeover portion roadbed is adopted mostly
Trapezium structure, employs cement stabilized graded macabam and fills in trapezoidal scope, and employs the compacting higher than non-changeover portion roadbed
Require.During built high-speed railway operation, often there is non-fragment orbit protuberance, gap, grout in bridge transition segment limit
Etc. disease.The reason for this disease, be mostly because changeover portion roadbed is remained by the earth structure of rock and soil constitution, changeover portion
After roadbed is laid a railway track, certain sedimentation still can occur, there is poor (the specification permission settlement after construction of certain settlement after construction with bridge abutment
Difference is not more than 5mm), because high-speed railway adopts seamless track steel rail, allow in settlement after construction difference scope, to have no effect in specification
Normal operation, but the diseases such as non-fragment orbit protuberance, gap, grout can be caused, need timely repair and maintenance.
The F rails of medium-and low-speed maglev traffic lines are spliced using fishplate bar scene by a short rail successively, and are left between rail
Seam, meets the ride comfort of the F rails of magnetic-levitation train even running requirement, to lean on works under rail to ensure substantially.It is low to put circuit location,
Basis is, by the earth structure of rock and soil constitution, to be affected by factors such as landform, geological conditions under support rail beam, and quality is not relatively easily-controllable
System, under load and the effect of various factor of natural environment differential settlement is also easy to produce, and can be occurred unavoidably and elevated structure bridge bridge
The inconsistent settlement after construction of platform, generation settlement after construction is poor, and low circuit of putting occurs in that differential settlement with bridge abutment position, necessarily affects
The ride comfort of F rails, in some instances it may even be possible to cause F rails to produce the problems such as faulting of slab ends, deformation, when serious, will affect the normal fortune of maglev vehicle
Battalion.
Utility model content
For the disadvantages described above or Improvement requirement of prior art, the structure should meet elevated structure and low put between circuit
Rigidity with sedimentation transition, it is ensured that magnetic suspension traffic engineering elevated structure and the low ride comfort requirement for putting line transition section F rail, and
Meet the low intensity for putting line transition section sub-rail foundation of magnetic floating traffic engineering, long-time stability to require, and construction quality is controllable
Property is strong.For achieving the above object, according to the utility model, there is provided medium-and low-speed maglev single line excavation location pile foundation combined type support rail
Beam transition section structure, it is characterised in that including the first pile foundation bearing structure, pile foundation joist composite bearing structure, armored concrete
Support rail beam base plate, reinforced concrete beam type structure, support rail beam both sides backfill filler, bridge abutment and headwall, wherein,
The first pile foundation bearing structure and the pile foundation joist composite bearing structure accept the armored concrete 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
The top of load structure 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 reserved between the armored concrete support rail beam base plate；
The pile foundation joist composite bearing structure setting has multiple, and the adjacent two sections armored concrete support rail beam
Pile foundation joist composite bearing structure described in one is respectively provided with the expansion joint of base plate, for the two sections reinforcing bar 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 armored concrete support rail beam base plate and the reinforcing bar
Concrete beam-type structural integrity pours shaping so as to collectively form armored concrete support rail beam；
The reinforced concrete supporting beam both sides are provided with for limiting the armored concrete support rail beam base plate lateral displacement
Convex gear platform；
Accept the reinforced concrete beam type structure, and described first in the top of the armored concrete support rail beam base plate
The top of pile foundation bearing structure is embedded in the armored concrete support rail beam base plate and just connects with it, the armored concrete support rail beam bottom
Plate pours shaping so as to collectively form armored concrete support rail beam with the reinforced concrete beam type structural integrity；
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；
One end of the armored concrete support rail beam base plate is overlapped on the bridge abutment, and both are connected by pin
Release longitudinal restraint is connect, and limits lateral displacement；
The both sides of one end that the armored concrete support rail beam base plate is overlapped on the bridge abutment are respectively provided with the end
Wall, and the headwall per side abuts respectively with the support rail beam both sides backfill filler of respective side, and for gear the support rail is protected
Beam both sides backfill filler；
The second gutter is provided with by the headwall, second gutter is provided with second away from the side of the headwall
Weathering.
Preferably, the first pile foundation bearing structure is cast-in-situ bored pile, and joist has just connect or overlapped with support rail beam base plate, with
Pile foundation bearing structure just connects.Overlapped using pin in the position of support rail beam internode seam, remaining position adopts and just connects.
Preferably, the first pile foundation bearing structure described in all these is arranged in ranks.
Preferably, roadbed filling, institute under the support rail beam are sequentially passed through per the lower end of the second pile foundation bearing structure described in root
State and stretched in supporting course after shallow layer reinforcement area and the soft stratum.
Preferably, the armored concrete support rail beam base plate is overlapped on one end of the bridge abutment and the bridge abutment
Between be provided with wear-resisting sliding layer.
Preferably, the pin includes pre-buried connection reinforcing bar, pitch hemp cut and stainless steel sleeve pipe, the pre-buried connection reinforcing bar
The pitch hemp cut is fixedly installed in the stainless steel sleeve pipe and between the two.
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 impact of the differential settlement to support rail beam vertical and horizontal rigidity, structure vertical cross stiffness and structural reliability it is more excellent.
(3) the first pile foundation bearing structure control settlement effect of the present utility model preferably, therefore can reduce cutting bedding and change
Fill out thickness, need to only meet the requirement of basic replacement thickness, can investment reduction, it is the reduction of erection time, excellent with obvious technology and economy
Gesture.
(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 armored concrete support rail beam base plate shares pile foundation joist composite bearing structure, and in adjacent steel
Expansion joint is reserved between reinforced concrete support rail beam base plate, impact failure of the section by train load of encorbelmenting can be avoided, and reduce temperature
The impact of stress and shrinkage and creep.
(6) armored concrete support rail beam base plate is overlapped on bridge abutment, by pin near one end of elevated bridge
Connection, it is to avoid between the two because of sedimentation faulting of slab ends that measures of foundation treatment difference causes, it is ensured that the floating F rails of magnetic it is low put circuit with
Bridge abutment connected position will not produce faulting of slab ends, effectively realize that magnetic suspension traffic engineering elevated structure puts line transition section F with low
The smoothly transition of rail.
Description of the drawings
Fig. 1 is schematic longitudinal section of the present utility model；
Fig. 2 is along the generalized section of I-I line in Fig. 1；
Fig. 3 is along the generalized section of II-II line in Fig. 1；
Fig. 4 is the floor map that armored concrete support rail beam base plate is overlapped on bridge abutment in the utility model；
Fig. 5 is that the utility model pile foundation joist has just connect connection signal with armored concrete support rail beam base plate.
Fig. 6 is that the utility model pile foundation joist overlaps connection signal with armored concrete support rail beam base plate.
Fig. 7 is the cross-sectional view of pin in the utility model.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and 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.
With reference to Fig. 1～Fig. 7, medium-and low-speed maglev single line excavation location pile foundation combined type support rail beam transition section structure, its feature
It is, including the first pile foundation bearing structure 3, pile foundation joist composite bearing structure 90, armored concrete support rail beam base plate 2, reinforcing bar
Concrete beam-type structure 1, support rail beam both sides backfill filler 4, bridge abutment 12 and headwall 13, wherein,
The first pile foundation bearing structure 3 and the pile foundation joist composite bearing structure 90 accept the reinforced concrete jointly
Native support rail beam base plate 2；
The first pile foundation bearing structure 3 is provided with many, 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 reserve between the armored concrete support rail beam base plate 2 expansion joint；
The pile foundation joist composite bearing structure 90 is provided with multiple and adjacent two sections armored concrete support rails
Pile foundation joist composite bearing structure 90 described in one is respectively provided with the expansion joint of beam base plate 2, for the two section 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 902 is embedded in the reinforced concrete supporting beam 901 and just connects with it, the steel
Reinforced concrete joist 901 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 are molded so as to collectively form armored concrete support rail beam 9 with the formed by integrally casting of reinforced concrete beam type structure 1；
The both sides of the reinforced concrete supporting beam 901 are provided with horizontal for limiting the armored concrete support rail beam base plate 2
The convex gear platform of displacement；
The reinforced concrete beam type structure 1 is accepted at the top of the armored concrete support rail beam base plate 2, and described the
The top of one pile foundation bearing structure 3 is embedded in the armored concrete support rail beam base plate 2 and just connects with it, the armored concrete support rail
Beam base plate 2 is molded so as to collectively form armored concrete support rail beam 9 with the formed by integrally casting of reinforced concrete beam type structure 1；
The 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；
One end of the armored concrete support rail beam base plate 2 is overlapped on the bridge abutment 12, and both pass through pin
15 Connection Release longitudinal restraints are followed closely, and limits lateral displacement；
The both sides of one end that the armored concrete support rail beam base plate 2 is overlapped on the bridge abutment 12 are respectively provided with described
Headwall 13, and the headwall 13 per side abuts respectively with the support rail beam both sides backfill filler 4 of respective side, for gear shield institute
State support rail beam both sides backfill filler 4；
The second gutter 17 is provided with by the headwall 13, second gutter 17 sets away from the side of the headwall 13
It is equipped with the second weathering 18.
Further, the first pile foundation bearing structure 3 is cast-in-situ bored pile, and joist 90 has just connect or taken with the base plate 2 of support rail beam 9
Connect, just connect with pile foundation bearing structure 3.In the position joist 901 and the armored concrete support rail beam base plate 2 of support rail beam internode seam
Overlapped using pin 15, remaining position adopts and just connects.
Further, the armored concrete support rail beam base plate 2 is overlapped on one end of the bridge abutment 12 and the bridge
It is provided with wear-resisting sliding layer 16 between abutment 12, the pin 15 includes pre-buried connection reinforcing bar 15.1, pitch hemp cut 15.2 and not
Rust steel sleeve 15.3, the pre-buried connection reinforcing bar 15.1 is located in the stainless steel sleeve pipe 15.3 and is fixedly installed between the two
The pitch hemp cut 15.2.
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 reduce cutting bedding replacement thickness, need to only meet the requirement of basic replacement thickness, can save
About invest, 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.
One end of armored concrete support rail beam base plate 2 of armored concrete support rail beam 9 is overlapped on bridge abutment 12, and the two leads to
Cross pin 15 to connect, the releasable temperature stress in the longitudinal direction of pin 15 realizes that support rail beam, in the flexible of longitudinal direction, laterally limits support rail beam
Displacement, improves the lateral stability of structure.One end of support rail beam overlaps with bridge abutment 12, makes low to put circuit support rail beam and bridge
The sedimentation of the lap position of abutment 12 is consistent, it is to avoid bridge abutment 12 and low putting produce between circuit support rail girder construction faulting of slab ends sedimentation；It is low
Put the other end of circuit armored concrete support rail beam base plate 2 be embedded in it is stable it is low put in line construction, its sedimentation puts circuit with low
Structure is consistent, is put line construction Jing basement process and is filled after compacting sedimentation value in controlled range due to low, therefore, support rail
Sedimentation between beam two ends be located at bridge abutment 12 and it is low put between line construction, close linear change, it is achieved thereby that overhead
Bridge structure and the low sedimentation transition put between line construction, it also avoid faulting of slab ends, and the smooth-going of transition segment limit F rails has been effectively ensured
Property.
Wear-resisting sliding layer 16 is arranged between armored concrete support rail beam base plate 2 and bridge abutment 12, by resistance to mill sliding
The effect of layer 16, can to a certain extent release the rotation that support rail beam is likely to occur under the load actions such as relative settlement, temperature
Constraint, and the dynamic stress cushioning effect of bridge abutment 12 is transferred to magnetic-levitation train, it also avoid support rail beam and bridge abutment
Abrasion and stress concentration between 12 causes the partial pressing of structure to destroy.
Adjacent armored concrete support rail beam base plate 2 shares pile foundation joist composite bearing structure, and in adjacent reinforcing bar
Expansion joint is reserved between concrete support rail beam base plate 2, can avoid encorbelmenting impact failure of the section by train load, and reduce temperature should
The impact of power and shrinkage and creep.
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；Further, since the lateral connection effect of joist 90,
The lateral stiffness of structure and the ability of opposing differential settlement deformation are also increased, the quantity of transverse pile foundation can be reduced, reduced and throw
Money.
The specific making step of the utility model is as follows：
(1) construction overhead bridge structure abutment, pours bridge abutment body concrete, abutment of constructing, and backfills abutment foundation foundation ditch；
The positioning of pin and embedded work should be performed before abutment concreting；
(2) excavating cut slope side slope carries out necessary bedding and changes to fill out to designing at road bed absolute altitude according to design requirement；Ground
After the completion of process, by changeover portion design requirement fill it is low after platform put under circuit support rail beam geotechnique basis, geotechnique under support rail beam after platform
Basis filling construction synchronous with abutment cone.According to each position wire feeding and compaction requirement when filling, transition segment limit with
Non- changeover portion area is synchronous layered to fill, and next layer is filled and fill again after detection meets the requirements last layer, until armored concrete holds
At the absolute altitude of beam-and-rail base plate bottom surface；
(3) subgrade cross section, vertical section direction construction drill bored concrete pile are in reinforced concrete floor bottom surface absolute altitude, i.e.,
First pile foundation bearing structure 3, drilled pile construction should 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；
(4) 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；
(5) high-strength wearable sliding layer is laid on abutment in armored concrete support rail beam and abutment overlap joint, according to design
Section is long to armored concrete support rail beam base plate 2 and the merogenesis formwork erection of reinforced concrete beam type structure 1, and each part concrete reaches design
After intensity distinguish form removal, one-time-concreting shaping, carry out before pouring all kinds of built-in fittings such as pin, sleeper pedestal connect reinforcing bar,
The positioning of water conservancy diversion rail bearing built-in fitting etc. and installation；
(6) construction is low puts the joint both sides headwall 13 of circuit bridge abutment 12, and headwall 13 is applied using concrete one-piece casting
Work, waits the concrete of headwall 13 to reach form removal after design strength, then puts circuit graded broken stone top by design requirement construction is low
The backfill layer in face, confining bed, associated satellite structures, by cone top surface confining bed of design and construction bridge abutment 12 etc., side of constructing
Slope protection, drainage system etc..
(7) carry out it is low put circuit and the laying of the elevated structure section of track and the installation of associated satellite engineering and construction, construction finishes
Afterwards.
As it will be easily appreciated by one skilled in the art that preferred embodiment of the present utility model is the foregoing is only, not
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 (7)
1. medium-and low-speed maglev single line excavation location pile foundation combined type support rail beam transition section structure, it is characterised in that including first
Base bearing structure, pile foundation joist composite bearing structure, armored concrete support rail beam base plate, reinforced concrete beam type structure, support rail
Beam both sides backfill filler, bridge abutment and headwall, wherein,
The first pile foundation bearing structure and the pile foundation joist composite bearing structure accept the armored concrete support rail jointly
Beam base plate；
The first pile foundation bearing structure is provided with many, 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 at the top of the armored concrete support rail beam base plate, and described in two adjacent sections
Expansion joint is reserved between armored concrete support rail beam base plate；
The pile foundation joist composite bearing structure setting has multiple, and the adjacent two sections armored concrete support rail beam base plate
Expansion joint at be respectively provided with pile foundation joist composite bearing structure described in, for the two section reinforced concretes for supporting this adjacent
Native support rail beam base plate, each described pile foundation joist composite bearing structure includes that reinforced concrete supporting beam and the second pile foundation carry knot
Structure, and the reinforced concrete supporting beam, the armored concrete are accepted in the top 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 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 convex of the armored concrete support rail beam base plate lateral displacement
Type keeps off platform；
Accept the reinforced concrete beam type structure, and first pile foundation in the top of the armored concrete support rail beam base plate
The top of bearing structure is embedded in the armored concrete support rail beam base plate and just connects with it, the armored concrete support rail beam base plate with
The reinforced concrete beam type structural integrity pours shaping so as to collectively form armored concrete support rail beam；
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；
One end of the armored concrete support rail beam base plate is overlapped on the bridge abutment, and both are released by pin connection
Longitudinal restraint is put, and limits lateral displacement；
The both sides of one end that the armored concrete support rail beam base plate is overlapped on the bridge abutment are respectively provided with the headwall, and
And the headwall per side is abutted respectively with the support rail beam both sides backfill filler of respective side, for the gear shield support rail beam both sides
Backfill filler；
The second gutter is provided with by the headwall, second gutter is provided with the second draining away from the side of the headwall
Slope.
2. pile foundation combined type support rail beam transition section structure in medium-and low-speed maglev single line excavation location according to claim 1, its
It is characterised by, the first pile foundation bearing structure is cast-in-situ bored pile, joist has just connect or overlapped, held with pile foundation with support rail beam base plate
Carry structure just to connect.
3. pile foundation combined type support rail beam transition section structure in medium-and low-speed maglev single line excavation location according to claim 1, its
It is characterised by, overlapped using pin in position joist and the support rail beam base plate of support rail beam internode seam, remaining position adopts and just connects.
4. pile foundation combined type support rail beam transition section structure in medium-and low-speed maglev single line excavation location according to claim 1, its
It is characterised by, the first pile foundation bearing structure described in all these is arranged in ranks.
5. pile foundation combined type support rail beam transition section structure in medium-and low-speed maglev single line excavation location according to claim 1, its
It is characterised by, per the lower end of the second pile foundation bearing structure described in root roadbed filling, shallow layer reinforcement under the support rail beam is sequentially passed through
Stretch in supporting course after area and the soft stratum.
6. pile foundation combined type support rail beam transition section structure in medium-and low-speed maglev single line excavation location according to claim 1, its
It is characterised by, the armored concrete support rail beam base plate is overlapped between one end of the bridge abutment and the bridge abutment and sets
It is equipped with wear-resisting sliding layer.
7. pile foundation combined type support rail beam transition section structure in medium-and low-speed maglev single line excavation location according to claim 1, its
It is characterised by, the pin includes pre-buried connection reinforcing bar, pitch hemp cut and stainless steel sleeve pipe, the pre-buried connection reinforcing bar is located at institute
State in stainless steel sleeve pipe and be fixedly installed between the two the pitch hemp cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057172.3U CN206157485U (en) | 2016-09-15 | 2016-09-15 | Moderate -low speed magnetic levitation single line excavation location pile foundation combined type support rail roof beam transition section structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057172.3U CN206157485U (en) | 2016-09-15 | 2016-09-15 | Moderate -low speed magnetic levitation single line excavation location pile foundation combined type support rail roof beam transition section structure |
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| Publication Number | Publication Date |
|---|---|
| CN206157485U true CN206157485U (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621057172.3U Withdrawn - After Issue CN206157485U (en) | 2016-09-15 | 2016-09-15 | Moderate -low speed magnetic levitation single line excavation location pile foundation combined type support rail roof beam transition section structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283958A (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 single line excavation location pile foundation combined type support rail beam transition section structure |
| CN109024470A (en) * | 2018-08-19 | 2018-12-18 | 天津大学 | The rectangular light-duty caisson of dome and pile foundation combined type breakwater |
-
2016
- 2016-09-15 CN CN201621057172.3U patent/CN206157485U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283958A (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 single line excavation location pile foundation combined type support rail beam transition section structure |
| CN106283958B (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 single line excavation location pile foundation combined type support rail beam transition section structure |
| CN109024470A (en) * | 2018-08-19 | 2018-12-18 | 天津大学 | The rectangular light-duty caisson of dome and pile foundation combined type breakwater |
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