CN206486798U - The bridgehead structures of overpass above underground rail - Google Patents
The bridgehead structures of overpass above underground rail Download PDFInfo
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- CN206486798U CN206486798U CN201720122399.XU CN201720122399U CN206486798U CN 206486798 U CN206486798 U CN 206486798U CN 201720122399 U CN201720122399 U CN 201720122399U CN 206486798 U CN206486798 U CN 206486798U
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- bridge
- retaining wall
- overpass
- pile foundation
- bridge pier
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Abstract
The utility model discloses a kind of bridgehead structures of overpass above underground rail, including the end of the bridge bridge pier and horizontal retaining wall being arranged on cushion cap, the edge of end of the bridge bridge pier is concordant with overpass top beam end, horizontal retaining wall includes the horizontal retaining wall of one of intermediate lateral retaining wall and twice side, intermediate lateral retaining wall is arranged on cushion cap and against top beam end and end of the bridge bridge pier edge, twice side transverse direction retaining wall is respectively arranged at the both sides of intermediate lateral retaining wall, cushion cap has pile foundation, and pile foundation is longitudinally arranged along overpass.The utility model realizes the function of the supporting bridge superstructure of abutment using bridge pier structure, realize that abutment bears to banket the function of pressure using horizontal retaining wall, the bottom pile foundation of bridge pier can be longitudinally arranged along bridge, so that the liftoff lower railway interval structure edge of bridge pier bottom pile foundation is farther out, meet the requirement of safety standard；And the length that need not lengthen overpass upper beam is led the way with being connected bridge, so as to reduce difficulty of construction.
Description
Technical field
The utility model is related to the end of the bridge knot of overpass above bridge construction technical field, more particularly to a kind of underground rail
Structure.
Background technology
With developing rapidly for city, track traffic is as a kind of freight volume is big, speed is fast, safety on schedule, environmental protection, section
About the mode of transportation of land used, is increasingly approved by the public.Increasing people recognizes the outlet for solving urban transport problems
It is to first develop using track traffic as key urban public tranlport system.
From the point of view of rail line erection mode, there is underground, overhead and three kinds of ground.By urban development restriction and environment
The influence of protection, overhead utilization rate is not high in practice with two kinds of ground pattern, and Underground Rail Transit pattern i.e. iron rule
Widely use.But, subway is often positioned in the lower section of urban road or road green line, and with the development of the volume of traffic, trunk
Often there is urban viaduct above road.There is projection coincidence face which results in overpass and the interval of subway or station.If city
City's overpass planning construction is preceding, and subway avoids urban viaduct and is easier；If subway planning construction is preceding, and overhead road of city
Bridge is influenceed by road alignment, plotted line position, and infrastructure is often difficult to the interval for avoiding subway.
The two ends end of the bridge of bridge is usually to use bridge abutment structure.Abutment refers in the supporting that bridge two ends are connected with roadbed
Portion's structure and the structure for bearing bridgehead filled soil lateral pressure, therefore the function of abutment mainly has two：Support bridge superstructure
Banketed lateral pressure with abutment is born.Conventional abutment pattern has：Gravity water wheel, light-weight abutment, frame-type abutment, modular bridge
Platform, bear abutment etc., the abutment of urban viaduct typically uses pile foundation, because abutment needs to bear bridgehead filled soil lateral pressure,
Therefore its pile foundation quantity is more, and it laterally will at least set two pile foundations at it.
According to《City track traffic engineering Specifications of Monitoring Technology》It is required that, to ensure track structure safety, the pile foundation of pier
Interval structure edge of the plinth away from track must is fulfilled for certain distance requirement.Both apart from it is too small when, if track construction is in rear, rail
During road shield jacking, pile foundation stress is caused to change perturbing for soil layer, the displacement of pile foundation will be increased, simultaneously
Pile Bearing Capacity will be less than design load, and pile foundation can not carry top stress, and structure has risk of collapsing；If track construction exists
Before, then during pile foundation construction, the collective effect of itself and soil layer can cause interval structure to produce negative friction, the displacement of interval structure
Beyond specification permissible value, there is security risk.And abutment, due to needing to keep out soil pressure after platform, its stage body must possess certain
Width, it is therefore necessary to which two or more pile foundations are laterally being set, cause pile foundation in transverse direction away from subway closer to its underpart
The clear distance of pile foundation and track is difficult to the safety requirements for meeting specification.
Utility model content
In view of the drawbacks described above of prior art, technical purpose of the present utility model is to provide above a kind of underground rail
The bridgehead structures of overpass, improve existing overpass end of the bridge using bridge abutment structure its underpart pile foundation and subway interval structure edge away from
From defects such as the requirements that can not closely meet very much safety standard.
To achieve the above object, the utility model provides a kind of bridgehead structures of overpass above underground rail, including
The end of the bridge bridge pier and horizontal retaining wall being arranged on cushion cap, the edge of the end of the bridge bridge pier are concordant with overpass top beam end,
The horizontal retaining wall includes the horizontal retaining wall of one of intermediate lateral retaining wall and twice side, and the intermediate lateral retaining wall is set
It is placed on the cushion cap and against the top beam end and the end of the bridge bridge pier edge, transverse direction retaining wall point in side described in twice
The both sides of the intermediate lateral retaining wall are not arranged at, and the cushion cap has pile foundation, and the pile foundation is longitudinally arranged along overpass.
End of the bridge realizes the function of the supporting bridge superstructure of traditional end of the bridge abutment using bridge pier structure, using end of the bridge bridge
Horizontal retaining wall after pier is born to banket the function of pressure to realize abutment, and intermediate lateral retaining wall is directly arranged on cushion cap simultaneously
Against top beam end and end of the bridge bridge pier edge, bridge upper beam is led the way with bridge and be mutually connected.
Further, the horizontal retaining wall in the side includes wall and bottom plate, and the wall of the horizontal retaining wall in the side is set
It is placed on the bottom plate.
Side transverse direction retaining wall is under cushion cap, in order to increase lifting surface area, is allowed to firmer so as to bearing
Bigger earth pressure, so the wall in the horizontal retaining wall of side plate divides into bottom set plate.And intermediate lateral retaining wall is set due to it
It is placed on cushion cap, can be using cushion cap as immobilizing foundation, while in order to avoid the interference with bridge pier, therefore without setting bottom plate.
Further, it is respectively equipped with longitudinal retaining wall on the outside of side transverse direction retaining wall described in twice.
The beneficial effects of the utility model：
The utility model has the advantages that as a result of said structure design：The utility model end of the bridge is used
Bridge pier structure come realize traditional end of the bridge abutment supporting bridge superstructure function, using the horizontal retaining wall after end of the bridge bridge pier
To realize that abutment bears to banket the function of stressor layer, because the bottom pile foundation of bridge pier will be lacked compared with the bottom pile foundation of abutment, therefore bridge
The bottom pile foundation of pier can be longitudinally arranged along bridge, so that the liftoff lower railway interval structure edge of bridge pier bottom pile foundation is farther out,
Meet the requirement of safety standard；And the utility model holds at the edge of end of the bridge bridge pier and overpass upper beam together level with both hands, transverse gear
Cob wall is arranged on cushion cap and against top beam-ends and end of the bridge bridge pier edge, without lengthening the length of overpass upper beam to be connected
Bridge is led the way, so as to reduce difficulty of construction.
The technique effect of design of the present utility model, concrete structure and generation is made furtherly below with reference to accompanying drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Brief description of the drawings
Fig. 1 is prior art overpass end of the bridge side structure schematic view.
Fig. 2 is prior art overpass end of the bridge overlooking the structure diagram.
Fig. 3 is the main structure diagram of a preferred embodiment of the present utility model.
Fig. 4 is along line A-A profile in Fig. 3.
Fig. 5 is along line B-B profile in Fig. 3.
Fig. 6 is the overlooking the structure diagram of a preferred embodiment of the present utility model.
In figure, Bridge 1 head pile foundation of bridge pier；Bridge 2 pier cushion cap；3 end of the bridge bridge piers；4 intermediate lateral retaining walls；5 sides transverse direction earth-retaining
Wall；51 sides transverse direction retaining wall wall；52 sides transverse direction retaining wall bottom plate；6 longitudinal retaining walls；7 overpass；8 underground rail areas
Between；9 bridges are led the way；10 upper beams；11 abutments；12 abutment cushion caps；13 piles；
Embodiment
Prior art as shown in Figure 1 and Figure 2, overpass bridgehead structures of the top of underground rail interval 8, including be arranged at and hold
Abutment 11 on platform 12, abutment cushion cap 12 has piles 13.Abutment 11 has two functions：Support the upper beam of bridge
10 and undertake bridge and lead the way the pressure that bankets of 9 sides.Therefore the pile foundation quantity that abutment needs is more, and undertakes the pressure requirements that banket
Abutment has certain width, and it at least needs to arrange two pile bases in the horizontal, as shown in Fig. 2 abutment cushion cap 12 has
Four piles 13, lateral arrangement two row of four piles 13 along overpass 7, often row two.Piles 13 are to ground
The distance of the structural edge in lower railway interval 8 is S1.
As shown in figures 3 to 6, a specific embodiment of the present utility model, including the He of end of the bridge bridge pier 3 being arranged on cushion cap 2
Horizontal retaining wall, the edge of end of the bridge bridge pier 3 is concordant with the end of overpass upper beam 10, and horizontal retaining wall includes one of intermediate lateral
The horizontal retaining wall 5 in retaining wall 4 and twice side, intermediate lateral retaining wall 4 be arranged on cushion cap 2 and against the end of upper beam 10 and
The edge of end of the bridge bridge pier 3, twice side transverse direction retaining wall 5 is respectively arranged at the both sides of intermediate lateral retaining wall 4, and cushion cap 2 has
Pile foundation 1, pile foundation 1 is longitudinally arranged along overpass 7.End of the bridge pile foundation of bridge pier 1 to the distance of the structural edge in underground rail interval 8 is S.
The utility model end of the bridge realizes the function of the supporting bridge superstructure of traditional end of the bridge abutment using bridge pier structure,
Realize that abutment bears to banket the function of pressure using the horizontal retaining wall after end of the bridge bridge pier, and by the edge of end of the bridge bridge pier 3
It is concordant with the end of overpass upper beam 10, intermediate lateral retaining wall 4 be directly arranged on cushion cap 2 and against the end of upper beam 10 and
The edge of end of the bridge bridge pier 3, makes bridge upper beam 10 and bridge lead the way and 9 is mutually connected.If not by the edge and overpass of end of the bridge bridge pier 3
The end of upper beam 10, which concordantly must just extend upper beam 10 and can just be allowed to lead the way with bridge, 9 to be mutually connected, and the utility model is so set
Meter can avoid upper beam 10 extending caused constructional difficulties, reduce difficulty of construction.
As shown in figure 5, side transverse direction retaining wall 5 includes wall 51 and bottom plate 52, the wall 51 of side transverse direction retaining wall is set
It is placed on bottom plate 52.Side transverse direction retaining wall 5 is under cushion cap 2, in order to increase lifting surface area, is allowed to firmer so as to hold
By bigger earth pressure, so side plate transverse direction retaining wall 5 sets bottom plate 52.And intermediate lateral retaining wall 4 is arranged at due to it
, can be using cushion cap as immobilizing foundation, while in order to avoid the interference with bridge pier, therefore without setting bottom plate on cushion cap 2.
The outside of twice side transverse direction retaining wall 5 is respectively equipped with longitudinal retaining wall 6.
As shown in fig. 6, end of the bridge pile foundation of bridge pier 1 of the present utility model only needs to two, and two edges of end of the bridge pile foundation of bridge pier 1
Overpass 7 is longitudinally arranged.Therefore, the prior art shown in comparison diagram 2, the knot of end of the bridge pile foundation of bridge pier 1 to underground rail interval 8
Structure edge apart from S be much larger than piles 13 in Fig. 2 to underground rail interval 8 marginal texture apart from S1, this practicality is newly
Type more disclosure satisfy that the safety requirements of job specfication.
Preferred embodiment of the present utility model described in detail above.It should be appreciated that the ordinary skill people of this area
Member just can make many modifications and variations without creative work according to design of the present utility model.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to design of the present utility model in domain
Available technical scheme is tested, all should be in the protection domain being defined in the patent claims.
Claims (3)
1. the bridgehead structures of overpass above a kind of underground rail, it is characterised in that including the end of the bridge bridge pier being arranged on cushion cap
With horizontal retaining wall, the edge of the end of the bridge bridge pier is concordant with overpass top beam end, and the horizontal retaining wall is included together
The horizontal retaining wall of intermediate lateral retaining wall and twice side, the intermediate lateral retaining wall is arranged on the cushion cap and against institute
Top beam end and the end of the bridge bridge pier edge are stated, side transverse direction retaining wall is respectively arranged at the intermediate lateral gear described in twice
The both sides of cob wall, the cushion cap has pile foundation, and the pile foundation is longitudinally arranged along overpass.
2. the bridgehead structures of overpass above underground rail according to claim 1, it is characterised in that the side is horizontal
Retaining wall includes wall and bottom plate, and the wall of the horizontal retaining wall in the side is arranged on the bottom plate.
3. the bridgehead structures of overpass above underground rail according to claim 1 or 2, it is characterised in that described in twice
Longitudinal retaining wall is respectively equipped with the outside of the transverse direction retaining wall of side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720122399.XU CN206486798U (en) | 2017-02-10 | 2017-02-10 | The bridgehead structures of overpass above underground rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720122399.XU CN206486798U (en) | 2017-02-10 | 2017-02-10 | The bridgehead structures of overpass above underground rail |
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| Publication Number | Publication Date |
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| CN206486798U true CN206486798U (en) | 2017-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720122399.XU Active CN206486798U (en) | 2017-02-10 | 2017-02-10 | The bridgehead structures of overpass above underground rail |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930437A (en) * | 2019-03-18 | 2019-06-25 | 中铁第四勘察设计院集团有限公司 | A kind of straddle-type monorail section turnout junction girder picks up the transition system at station |
-
2017
- 2017-02-10 CN CN201720122399.XU patent/CN206486798U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930437A (en) * | 2019-03-18 | 2019-06-25 | 中铁第四勘察设计院集团有限公司 | A kind of straddle-type monorail section turnout junction girder picks up the transition system at station |
| CN109930437B (en) * | 2019-03-18 | 2023-12-19 | 中铁第四勘察设计院集团有限公司 | Transition system of straddle type monorail section turnout beam connection station |
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