CN206157495U - Moderate -low speed magnetic levitation double -line compound framing type support rail girder construction of location pile foundation of filling - Google Patents

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 double -line compound framing type support rail girder construction of location pile foundation of filling is disclosed, roadbed filler and support rail roof beam both sides are backfilled and are packed under the compound load bearing structure of first pile foundation load bearing structure, supporting beam of pile foundation, the two rows of reinforced concrete support rail breast boards, the two rows of reinforced concrete beam structure, support rail roof beam, and first pile foundation load bearing structure is provided with many, accept on 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

The compound framing type support rail girder construction of medium-and low-speed maglev two-wire embankment location pile foundation

Technical field

The utility model belongs to that middle low speed magnetic suspension traffic engineering is low to put Line technology field, low more particularly, in Fast magnetic floats two-wire 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, affects the integral rigidity of structure, and after work Sedimentation 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 two-wire embankment ground The compound framing type support rail girder construction of section pile foundation, can avoid the low defect for putting circuit support rail girder construction of tradition, construction quality from being easier Control, long-time stability are more preferable, and low speed magnetic suspension traffic engineering track structure deforms to support rail girder construction during it both meets With the high request of settlement after construction, the requirement of the controllability of bedding long-time stability, durability and construction quality is met again, and it is economical Property is more preferably.

For achieving the above object, according to the utility model, there is provided medium-and low-speed maglev two-wire embankment location framing combined type Support rail girder construction, it is characterised in that hold including the first pile foundation bearing structure, pile foundation joist composite bearing structure, armored concrete Roadbed filling and support rail beam both sides backfill filler under beam-and-rail base plate, reinforced concrete beam type structure, support rail beam, 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；

Reinforced concrete beam type structure described in two rows is accepted at the top of the armored concrete support rail beam base plate, and is often arranged In armored concrete support rail beam base plate, expansion joint is set between armored concrete support rail beam base plate described in two adjacent sections；

The pile foundation joist composite bearing structure setting has multiple, and in every placing of reinforcement concrete support rail beam base plate, phase Pile foundation joist composite bearing structure described in one is respectively provided with the expansion joint of the adjacent two sections armored concrete support rail beam base plate, with For the two sections armored concrete support rail beam base plate for supporting this adjacent, each described pile foundation joist composite bearing structure is wrapped Reinforced concrete supporting beam and the second pile foundation bearing structure are included, and institute is accepted on the top per the second pile foundation bearing structure described in root Reinforced concrete supporting beam is stated, the reinforced concrete supporting beam 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；

Filler between support rail beam is set described in two rows between armored concrete support rail beam base plate；

Wired weathering section is set described in two rows between reinforced concrete beam type structure, and weathering section has between the line Cross fall and head fall, for current are introduced into two adjacent sections armored concrete support rail beam base plate internode expansion joint further Current are discharged；

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；

Sequentially pass through roadbed filling, the shallow-layer under the support rail beam per the lower end of the first pile foundation bearing structure described in root to add Stretch in supporting course after Gu Qu and the soft stratum, with soft stratum produce sedimentation when, the first pile foundation bearing structure Negative friction can be born, so as to provide stable carrying to armored concrete support rail beam base plate and reinforced concrete beam type structure Power, with the sedimentation reduced because of filler filling body vertical, the vertical and horizontal rigidity of armored concrete support rail beam is produced it is unfavorable Affect.

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.Preferably, the height of the support rail beam both sides backfill filler and the armored concrete support rail beam bottom Plate it is highly equal.

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 cross fall of weathering section is 3%～5% between the line, and head fall is not less than 2 ‰.

In general, by the contemplated above technical scheme of the utility model compared with prior art, can obtain down Row beneficial effect：

(1) armored concrete support rail beam base plate of the present utility model, reinforced concrete beam type structure 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 embankment produces certain sedimentation, first Base bearing structure can still bear negative friction and provide stronger bearing capacity, it is to avoid make because filling compaction quality is wayward Into impact of the differential settlement to support rail beam vertical and horizontal rigidity, structure vertical cross stiffness 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, with reference to the first pile foundation bearing structure can effective control roadbed reclamation and Post-construction settlement of subgrade.Non- soft soil zone more can be avoided at the foundation stabilization of the wide area produced after embankment slope Reason, and the first pile foundation bearing structure construction quality is more easy to control, can effective control construction quality, investment reduction, the reduction of erection time, tool There are 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 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) arranging armored concrete support rail beam base plate by framing type is divided to two rows to arrange, and can avoid making in train load For increasingly complex compared to traditional stress support rail beam with, framing pile foundation joist type support rail beam can reduce buckling deformation to holding The impact of beam-and-rail base plate and top girder structure.

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 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 that the utility model pile foundation joist has just connect connection diagram with armored concrete support rail beam base plate.

Fig. 6 is that the utility model pile foundation joist overlaps connection diagram 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 two-wire embankment location framing combined type support rail girder construction, including the first pile foundation Bearing structure 3, pile foundation joist composite bearing structure 90, armored concrete support rail beam base plate 2, reinforced concrete beam type structure 1, hold Roadbed filling 5 and support rail beam both sides backfill filler 4 under beam-and-rail, 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；

Reinforced concrete beam type structure 1 described in two rows of top undertaking of the armored concrete support rail beam base plate 2, and often In placing of reinforcement concrete support rail beam base plate 2, expansion joint is set between armored concrete support rail beam base plate 2 described in two adjacent sections；

The pile foundation pile foundation joist composite bearing structure 90 be provided with it is multiple, and per placing of reinforcement concrete support rail beam base plate In 2, at the expansion joint of adjacent two pieces of armored concrete support rail beam base plates 2 pile foundation joist composite bearing described in is respectively provided with Structure 90, the armored concrete support rail beam base plate 2 of two pieces for supporting this adjacent, each described pile foundation joist is compound to be held Carrying structure 90 includes the pile foundation bearing structure 902 of reinforced concrete supporting beam 9011 and second, and holds per the second pile foundation described in root The reinforced concrete supporting beam 9011 is accepted on the top for carrying structure 902, and the reinforced concrete supporting beam 9011 accepts the steel Reinforced 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 9011 and just connects with it, the steel Reinforced concrete joist 9011 has just connect or has overlapped with the armored concrete support rail beam base plate 2, the armored concrete support rail beam bottom Plate 2 is molded with the formed by integrally casting of reinforced concrete beam type structure 1, so as to collectively form armored concrete support rail beam 9；

Filler 21 between support rail beam is set described in two rows between armored concrete support rail beam base plate 2；

Wired weathering section is set described in two rows between reinforced concrete beam type structure 1, weathering section tool between the line There are cross fall and head fall, for current are introduced into the internode expansion joint of two adjacent sections armored concrete support rail beam base plate 2 And then discharge in current；The cross fall of weathering section is 3%～5%, more preferably 4% between the line, weathering section between line Head fall be not less than 2 ‰, in order to draining.

The both sides of the reinforced concrete supporting beam 9011 are provided with horizontal for limiting the armored concrete support rail beam base plate 2 The convex gear platform 91 of displacement；

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 both sides backfill filler 4 collectively form filler filling body 10, institute under the support rail beam State the both sides of filler filling body 10 and be provided with weathering 11；

Roadbed filling 5, the shallow-layer under the support rail beam is sequentially passed through per the lower end of the first pile foundation bearing structure 3 described in root Stretch into behind stabilization zone 6 and the soft stratum 7 in supporting course 8, so that when soft stratum 7 produces sedimentation, first pile foundation is held Carrying structure 3 can bear negative friction, so as to provide surely to armored concrete support rail beam base plate 2 and reinforced concrete beam type structure 1 Fixed bearing capacity, to reduce vertical, vertical and horizontal rigidity of the sedimentation to armored concrete support rail beam 9 because of filler filling body 10 The adverse effect of generation.

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 the first pile foundation bearing structure 3.In the position of support rail beam internode seam, joist is overlapped with support rail beam base plate using pin 12, Remaining position adopts and just connects.

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 first pile foundation bearing structures 3 having are arranged in ranks.Lower end per the second pile foundation bearing structure 902 described in root is successively Stretch in supporting course 8 after roadbed filling 5, the shallow layer reinforcement area 6 and the soft stratum 7 through under the support rail beam.

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 first pile foundation Bearing structure 3, structural reliability is high, can save the large area stiffening basic ground produced after traditional embankment slope.

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 8, when soft stratum 7 produces sedimentation, First pile foundation bearing 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 901 that pile foundation bearing structure 3 and reinforced concrete floor 2 are arranged, can greatly reduce stake The stress concentration phenomenon of armored concrete support rail beam base plate 2 at base bearing structure；Further, since the lateral connection effect of joist, 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.

Armored concrete support rail beam base plate 2 is arranged by framing type is divided to two rows to arrange, and can avoid in High-speed Train Loads Under for the support rail beam increasingly complex compared to traditional stress, framing pile foundation joist type support rail beam can reduce buckling deformation to support rail The impact of beam base plate and the structure of top beam type 1.

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, with reference to the first pile foundation bearing structure 3 can effective control roadbed reclamation and Post-construction settlement of subgrade.By contrast, the new structure foundation stabilization quantity is little, invests little, and more conducively after construction quality and work The control of sedimentation, 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. the first pile foundation bearing structure 3, drilled pile construction should be adopted and disturb little construction technology to railway embankment, be existed if necessary Steel pile casting is set in embankment altitude range or draws hole；After cast-in-situ bored pile reaches desired strength, amputate by code requirement Pile crown, colligation concrete floor 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 901, 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, Face is backfilled between reinforced concrete beam type structure to make intilted weathering and carry out top layer waterproof by design requirement, is once poured Build up type, carry out before pouring all kinds of built-in fittings such as pin, sleeper pedestal connection reinforcing bar, the positioning of water conservancy diversion rail bearing built-in fitting etc. 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 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 (8)

1. medium-and low-speed maglev two-wire embankment location pile foundation is combined framing type support rail girder construction, it is characterised in that including the first pile foundation Bearing structure (3), pile foundation joist joist composite bearing structure (90), two placing of reinforcements concrete beam-type structure (1), two placing of reinforcements are mixed Roadbed filling (5) and support rail beam both sides backfill filler (4) under solidifying soil girder structure (1), support rail beam, 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 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；

Reinforced concrete beam type structure (1) described in two rows of top undertaking of the armored concrete support rail beam base plate (2), and often In placing of reinforcement concrete support rail beam base plate (2), arrange between armored concrete support rail beam base plate (2) described in two adjacent sections flexible Seam；

The pile foundation joist composite bearing structure (90) be provided with it is multiple, and per in placing of reinforcement concrete support rail beam base plate (2), The pile foundation joist composite bearing structure is respectively provided with the expansion joint of the adjacent two sections armored concrete support rail beam base plate (2) (90), for the two sections armored concrete support rail beam base plate (2) for supporting this adjacent, each described pile foundation joist is compound to be held Carrying structure (90) includes reinforced concrete supporting beam (901) and the second pile foundation bearing structure (902), and per second described in root The reinforced concrete supporting beam (901) is accepted on the top of base bearing structure (902), and the reinforced concrete supporting beam (901) is held Connect 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 armored concrete support rail beam bottom Plate (2) is molded with reinforced concrete beam type structure (1) formed by integrally casting, so as to collectively form armored concrete support rail beam (9)；

Filler (21) between support rail beam is set described in two rows between armored concrete support rail beam base plate (2)；

Wired weathering section is set described in two rows between reinforced concrete beam type structure (1), and weathering section has between the line Cross fall and head fall, for current are introduced into two adjacent sections armored concrete support rail beam base plate (2) internode expansion joint And then discharge in current；

Reinforced concrete supporting beam (901) both sides are provided with for limiting the armored concrete support rail beam base plate (2) laterally Convex gear platform (91) of displacement；

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 filling out for the armored concrete support rail beam base plate (2), reinforced concrete supporting beam (901) and support rail beam both sides Material (4) provides operation platform, and provides lateral support for the pile foundation bearing structure (3)；Wherein, the shallow layer reinforcement area (6) It is arranged under the superficial layer of soft stratum (7), and the shallow layer reinforcement area (6), the support rail beam roadbed filling (5) and described The vertical consistency of reinforced concrete beam type structure (1)；

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 bottom 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 under the support rail beam are sequentially passed through per the lower end of the first pile foundation bearing structure (3) described in root Stretch into behind stabilization zone (6) and the soft stratum (7) in supporting course (8), with when soft stratum (7) produces sedimentation, described the One pile foundation bearing structure (3) can bear negative friction, so as to armored concrete support rail beam base plate (2) and reinforced concrete beam type Structure (1) provides stable bearing capacity, to reduce because the sedimentation of filler filling body (10) is erected to armored concrete support rail beam (9) To the adverse effect that, vertical and horizontal rigidity is produced.

2. medium-and low-speed maglev two-wire embankment location according to claim 1 pile foundation is combined framing type support rail girder construction, and it is special Levy and be, 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, with pile foundation Bearing structure just connects.

3. medium-and low-speed maglev two-wire embankment location according to claim 1 pile foundation is combined framing type support rail girder construction, and it is special Levy and be, overlapped using pin in position joist and the support rail beam base plate of support rail beam internode seam, remaining position using just connecing or Overlap joint.

4. medium-and low-speed maglev two-wire embankment location according to claim 1 pile foundation is combined framing type support rail girder construction, and it is special Levy and be, the support rail beam both sides backfill the height of filler (4) and the height phase of the armored concrete support rail beam base plate (2) Deng.

5. medium-and low-speed maglev two-wire embankment location according to claim 1 pile foundation is combined framing type support rail girder construction, and it is special Levy and be, the first pile foundation bearing structure (3) described in all these is arranged in ranks.

6. medium-and low-speed maglev two-wire embankment location according to claim 1 pile foundation is combined framing type support rail girder construction, and it is special Levy and be, per the lower end of the second pile foundation bearing structure (902) described in root roadbed filling (5), institute under the support rail beam are sequentially passed through State and stretch into after shallow layer reinforcement area (6) and the soft stratum (7) in supporting course (8).

7. medium-and low-speed maglev two-wire embankment location according to claim 1 pile foundation is combined framing type support rail girder construction, and it is special Levy and be, the cross fall of weathering section is 3%～5% between the line, and head fall is not less than 2 ‰.

8. medium-and low-speed maglev two-wire embankment location according to claim 3 pile foundation is combined framing type support rail girder construction, and it is special Levy and be, 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 described The pitch hemp cut is set in stainless steel sleeve pipe and between the two.