CN216108585U - Tunnel side-through bridge pile foundation supporting structure and system - Google Patents
Tunnel side-through bridge pile foundation supporting structure and system Download PDFInfo
- Publication number
- CN216108585U CN216108585U CN202122265295.3U CN202122265295U CN216108585U CN 216108585 U CN216108585 U CN 216108585U CN 202122265295 U CN202122265295 U CN 202122265295U CN 216108585 U CN216108585 U CN 216108585U
- Authority
- CN
- China
- Prior art keywords
- bridge
- pile
- tunnel
- pile foundation
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Foundations (AREA)
Abstract
The utility model discloses a tunnel side-through bridge pile foundation supporting structure and a system, belonging to the field of tunnel engineering, and the technical scheme is as follows: including bearing pile and horizontal support stake, horizontal support stake one end is fixed with bearing pile, and the other end has can with the tangent fixed branch of bridge pile foundation hoop. The utility model can increase the rigid supporting points of the bridge pile foundation, reduce the lateral deformation of the pile body and the loss of the bearing capacity caused by tunnel excavation, and ensure the normal operation of the bridge.
Description
Technical Field
The utility model relates to the field of tunnel engineering, in particular to a tunnel side-through bridge pile foundation supporting structure and system.
Background
The stratum that produces when the shallow tunnel construction of burying in city warp and stress release can produce the influence of certain degree to the surrounding environment, when the bridge pile foundation is worn to the tunnel side, arouses easily that pile body warp and bearing capacity reduce, can't guarantee the safe operation of bridge.
Although the existing bridge foundation reinforcement modes such as ground grouting and pile foundation support replacement can play a certain role, the existing bridge foundation reinforcement modes have the defects of low pertinence, large influence on the surrounding environment and high construction cost.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a tunnel side-through bridge pile foundation supporting structure and a system, which can increase the rigid supporting points of a bridge pile foundation, reduce the lateral deformation of a pile body and the loss of bearing capacity caused by tunnel excavation and ensure the normal operation of a bridge.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
in a first aspect, an embodiment of the utility model provides a tunnel side-through bridge pile foundation support structure, which comprises a bearing pile and a horizontal support pile, wherein one end of the horizontal support pile is fixed with the bearing pile, and the other end of the horizontal support pile is provided with a fixing branch which can be tangent to the annular direction of the bridge pile foundation.
As a further embodiment, the horizontal support piles are arranged at intervals along the axial direction of the bearing pile.
As a further embodiment, the horizontal support piles are perpendicular to the load-bearing piles.
As a further embodiment, there are two of said fixed branches.
In a second aspect, an embodiment of the present invention further provides a tunnel side-through bridge pile foundation support system, including the support structure.
As a further embodiment, the device also comprises a tunnel and a bridge, wherein a plurality of support structures are distributed at intervals along the length direction of the tunnel;
the bridge includes the bridge main part and connects in the bridge pile foundation of bridge main part bottom, and the bridge pile foundation links to each other with the fixed branch of horizontal support stake.
As a further embodiment, horizontal support piles are installed on both the upper side and the lower side of the tunnel, and the axes of the horizontal support piles are parallel to the bridge body.
As a further embodiment, the bridge pile foundation is located on one side of the tunnel and the load-bearing pile is located on the other side of the tunnel.
As a further embodiment, the central connecting line of the bridge pile foundation and the bearing pile coincides with the axis of the horizontal supporting pile.
In a further embodiment, a pile cap is installed at the bottom of the bridge pile foundation.
The utility model has the following beneficial effects:
(1) the horizontal support pile is provided with the fixed branch, the fixed branch is tangent to the bridge pile foundation in the circumferential direction, rigid support points of the bridge pile foundation can be increased, the lateral deformation of a pile body and the loss of bearing capacity caused by tunnel excavation are reduced, and the applicability and the safety are improved.
(2) According to the utility model, the horizontal support pile, the bridge pile foundation and the bearing pile form a portal structure outside the tunnel outline, so that the effect of isolating the soil body is achieved, the plastic region excavation range of the tunnel can be effectively reduced, and the effects of controlling ground settlement and reducing the safety risk of tunnel construction can be achieved to a certain extent.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.
FIG. 1 is a top view of the present disclosure according to one or more embodiments;
FIG. 2 is a cross-sectional structural schematic of the present invention in accordance with one or more embodiments;
FIG. 3 is a schematic illustration of a horizontal support pile structure according to one or more embodiments of the present invention;
the bridge comprises a bridge pile foundation 1, a bearing pile 2, a horizontal supporting pile 3, a first horizontal supporting pile 3-1, a second horizontal supporting pile 3-2, a tunnel 4, a fixed branch 5, a bridge body 6 and a pile foundation bearing platform 7.
Detailed Description
The first embodiment is as follows:
the embodiment provides a tunnel side-through bridge pile foundation supporting structure, as shown in fig. 1 and 2, the supporting structure comprises a bearing pile 2 and a horizontal supporting pile 3, wherein one end of the horizontal supporting pile 3 is fixed with the bearing pile 2, and the other end of the horizontal supporting pile 3 is provided with a fixed branch 5 which can be tangent to the annular direction of the bridge pile foundation 1; the horizontal support piles 3 are arranged in plurality at intervals along the axial direction of the bearing pile 2.
In the present embodiment, two horizontal support piles 3 are provided, i.e., a first horizontal support pile 3-1 and a second horizontal support pile 3-2. The first horizontal supporting pile 3-1 and the second horizontal supporting pile 3-2, the bridge pile foundation 1 and the bearing pile 2 form a portal structure. The portal structure distributes in the tunnel 4 outsides, plays the effect of keeping apart the soil body, can effectively reduce tunnel excavation plastic region scope.
As shown in fig. 3, one end of the horizontal support pile 3 is provided with two fixed branches 5, and the two fixed branches 5 form a V-shaped structure and are tangent to the annular direction of the bridge pile foundation 1, so as to increase the rigid support point of the bridge pile foundation 1 and reduce the loss of the lateral deformation of the pile body and the bearing capacity caused by tunnel excavation.
The construction method of the embodiment comprises the following steps:
step one, paying off and positioning:
and (3) measuring and setting-out on the left side (the side close to the tunnel 4) of the bridge pile foundation 1 close to the tunnel 4 by using a measuring instrument according to the design requirement, and positioning the position of the bearing pile 2.
Step two, constructing a first horizontal supporting pile 3-1 and a first fixed branch (the fixed branch at the end part of the first horizontal supporting pile 3-1):
and excavating the bearing pile 2 to the elevation of the first horizontal supporting pile 3-1 by adopting a manual excavation form, constructing to the bridge pile foundation 1 by adopting transverse excavation, lowering a reinforcement cage, and connecting the steel bar of the first fixed branch with the steel bar of the first horizontal supporting pile 3-1.
Step three, constructing a second horizontal supporting pile 3-2 and a second fixed branch (a fixed branch at the end part of the second horizontal supporting pile 3-2):
and (5) continuously excavating the bearing pile 2 to the elevation of the second horizontal supporting pile 3-2, and constructing the second horizontal supporting pile 3-2 and the second fixed branch.
Step four, constructing a bearing pile 2:
and continuously excavating the bearing pile 2 to a designed elevation position, and pouring concrete to fixedly connect the horizontal support pile 3 and the lateral steel bars of the bearing pile 2.
Fifthly, excavating and constructing the underground tunnel: and (5) performing tunnel excavation construction after the concrete of the pile foundation supporting system meets the design strength requirement.
Example two:
this embodiment provides a bridge pile foundation braced system is worn to tunnel side, including embodiment one bearing structure, still include tunnel 4, bridge, bearing structure is a plurality of along 4 length direction interval distributions in tunnel, and it forms whole stress structure with bridge pile foundation 1.
The bridge includes bridge main part 6 and connects in the bridge pile foundation 1 of bridge main part bottom, 1 bottom installation pile foundation cushion caps 7 of bridge pile foundation.
Further, the bridge pile foundation 1 and the bearing pile 2 are parallel to each other, and the central connecting line of the bridge pile foundation 1 and the bearing pile 2 is perpendicular to the axis. And the axis of the horizontal supporting pile 3 is superposed with the central connecting line of the bridge pile foundation 1 and the bearing pile 2. The axis of the horizontal support pile 3 is parallel to the bridge main body 6.
As shown in fig. 2, a first horizontal support pile 3-1 is located at the upper side of the tunnel 4, and a second horizontal support pile 3-2 is located at the lower side of the tunnel 4; tunnel 4 one side sets up bridge pile foundation 1, and the opposite side sets up bearing pile 2.
For the same cross section of the tunnel 4, the bridge pile foundation 1, the bearing pile 2, the first horizontal supporting pile 3-1 and the second horizontal supporting pile 3-2 form a portal structure around the outer side of the tunnel 4, so that the effect of isolating a soil body is achieved, the plastic region range of tunnel excavation can be effectively reduced, and the effects of controlling ground settlement and reducing tunnel construction safety risks can be achieved to a certain extent.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a bridge pile foundation bearing structure is worn to tunnel side, its characterized in that, including bearing pile and horizontal support stake, horizontal support stake one end is fixed with bearing pile, and the other end has can with the tangent fixed branch of bridge pile foundation hoop.
2. The tunnel side-through bridge pile foundation support structure of claim 1, wherein a plurality of horizontal support piles are axially spaced along the load-bearing pile.
3. The tunnel side-through bridge pile foundation support structure of claim 2, wherein the horizontal support piles are perpendicular to the load-bearing piles.
4. The tunnel side-through bridge pile foundation support structure of claim 1, wherein there are two of the fixed branches.
5. A tunnel side-through bridge pile foundation support system comprising a support structure according to any one of claims 1 to 4.
6. The system for supporting the pile foundation of the tunnel side-through bridge according to claim 5, further comprising a tunnel and a bridge, wherein a plurality of the supporting structures are distributed at intervals along the length direction of the tunnel;
the bridge includes the bridge main part and connects in the bridge pile foundation of bridge main part bottom, and the bridge pile foundation links to each other with the fixed branch of horizontal support stake.
7. The system for supporting the pile foundation of the tunnel side-through bridge according to claim 6, wherein horizontal supporting piles are installed on the upper side and the lower side of the tunnel, and the axis of each horizontal supporting pile is parallel to the main body of the bridge.
8. The system of claim 6, wherein the bridge pile is located on one side of the tunnel and the load-bearing pile is located on the other side of the tunnel.
9. The system of claim 6, wherein the central line between the bridge pile foundation and the load-bearing pile coincides with the axis of the horizontal support pile.
10. The system of claim 6, wherein a pile cap is installed at the bottom of the bridge pile foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122265295.3U CN216108585U (en) | 2021-09-17 | 2021-09-17 | Tunnel side-through bridge pile foundation supporting structure and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122265295.3U CN216108585U (en) | 2021-09-17 | 2021-09-17 | Tunnel side-through bridge pile foundation supporting structure and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216108585U true CN216108585U (en) | 2022-03-22 |
Family
ID=80734665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122265295.3U Active CN216108585U (en) | 2021-09-17 | 2021-09-17 | Tunnel side-through bridge pile foundation supporting structure and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216108585U (en) |
-
2021
- 2021-09-17 CN CN202122265295.3U patent/CN216108585U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103790598B (en) | A kind of preparation method of shield tunnel longitudinal prestressing concrete lining pipe piece | |
| CN105569674A (en) | Tunnel structure for weak and broken high-temperature water-bearing stratum | |
| CN210031842U (en) | Combined supporting system for adjacent deep foundation pit based on row piles, connecting beams and counter-pulling anchor cables | |
| CN201902703U (en) | Suspension protective device for underground pipeline | |
| CN105972313B (en) | One kind is across base pit engineering conduit wiring suspension method and overhung construction | |
| CN102704939A (en) | Combined steel temporary supporting excavation method for tunnel with extra-large section | |
| CN104878835A (en) | Strip-shaped foundation house rear basement structure | |
| CN109629576B (en) | Suspension protection system for water supply pipe crossing foundation pit and construction method | |
| CN115012426B (en) | Steel pipe pile support and construction method for existing telegraph pole during four-week full excavation | |
| CN103015434A (en) | High-stiffness monolithic prestress assembly type foundation pit bracing inner-supporting system | |
| CN201991009U (en) | Deep foundation pit shoring system using poured slope-supporting piles and anchor ropes | |
| CN107476316B (en) | Building foundation pit internal and external support structure and construction method | |
| CN205188981U (en) | Assembled foundation ditch is gone along with sb. to guard him steel pipe concrete and is supported | |
| CN216108585U (en) | Tunnel side-through bridge pile foundation supporting structure and system | |
| CN111795212B (en) | Suspension method and suspension structure for pipeline crossing foundation pit | |
| CN210564549U (en) | Supporting system of existing railway | |
| CN103031841A (en) | Post-tensioned prestressing rectangular hollow foundation pit support pile | |
| CN110994523A (en) | Method and system for protecting cable | |
| CN207062955U (en) | The foundation pit supporting construction that a kind of thick long stake is combined with thin stub | |
| CN103485350B (en) | The method of attachment of the steel supporting system raised and the collar tie beam that bears down on one | |
| CN212104108U (en) | Recoverable assembled prestressing force suspension cable foundation ditch support piece | |
| CN108487303B (en) | Combined retaining wall of supporting pile and counterfort retaining wall and construction method | |
| CN209194570U (en) | Large-volume prestressed beam underpinning structure | |
| CN214940196U (en) | Finish rolling deformed steel bar and steel pipe combined prestressed pile | |
| CN105113387A (en) | Reconstruction structure and construction method of bridge bearing platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |