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Piled drainage anchor rod retaining wall structure and construction method thereof

A pile-supported and retaining wall technology, which is applied in the field of geotechnical engineering, can solve problems affecting the safety of bridge pile foundations, deterioration of rock and soil strength on bank slopes, and unusability, so as to avoid reservoir water soaking and reduce the degree of impact. Technology advanced effects

Pending Publication Date: 2019-04-05
CHONGQING JIAOTONG UNIVERSITY
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  • Abstract
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  • Claims
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Problems solved by technology

Whether it can be used here is mainly controlled by the terrain, if the terrain conditions do not allow it, it cannot be used
[0008] In addition, the dynamic change of the groundwater level of the bank slope caused by the rise and fall of the reservoir water level is also a problem worthy of attention. The dynamic change of the groundwater level not only deteriorates the strength of the rock and soil mass of the bank slope, but also the seepage of groundwater to the outside of the slope may directly lead to the slope unstable
[0009] In view of this, in view of the fact that the outer slope of the bridge pile foundation in the valley slope of the reservoir is prone to local instability due to changes in the reservoir water level, which affects the safety of the bridge pile foundation, it is urgent to develop a suitable for large-scale reservoirs. Engineering Technology of Bridge Pile Foundation Protection

Method used

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  • Piled drainage anchor rod retaining wall structure and construction method thereof
  • Piled drainage anchor rod retaining wall structure and construction method thereof
  • Piled drainage anchor rod retaining wall structure and construction method thereof

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Embodiment 1

[0042] see figure 2 , this embodiment discloses a pile-supported drainage anchor retaining wall structure, which is used to reinforce the slope outside the pile foundation of the bank slope bridge. see figure 1 with image 3 , The retaining wall structure includes a pile foundation 1, a beam 2, a retaining wall 3 and a plurality of anchor rods 4.

[0043] The pile foundation 1 includes a plurality of load-bearing piles 101 embedded in the bank slope stable rock and soil mass. The bearing piles 101 are arranged at intervals along the bank slope. The pile body of the load-bearing pile 101 is embedded in the stable rock-soil mass to provide vertical and horizontal bearing capacity for the structure. In actual production, when the pile foundation 1 is mainly used to provide vertical bearing capacity, the pile body of the bearing pile 101 is arranged vertically. When the pile foundation 1 needs to provide vertical and horizontal bearing capacity at the same time, some or all ...

Embodiment 2

[0049] This embodiment discloses a construction method for the pile-supported drainage anchor retaining wall structure described in Embodiment 1, which includes the following steps:

[0050] 1) According to the geological survey data, determine the construction position of the retaining wall structure.

[0051] 2) According to the designed pile position, size, reinforcement, strength grade, etc., choose an appropriate construction method to construct pile foundation 1.

[0052] 3) According to the designed beam size, reinforcement, strength grade, etc., select an appropriate construction method to construct the beam 2 to ensure that the beam 2 and the pile foundation 1 are firmly connected.

[0053] 4) Excavate and clean up slope rock and soil. According to the designed anchor bolt position, size, strength grade, etc., select an appropriate construction method to construct the anchor bolt 4, and ensure that the stressed steel bar of the anchor bolt 4 is exposed to a sufficient ...

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Abstract

The invention provides a piled drainage anchor rod retaining wall structure and a construction method thereof. The retaining wall structure comprises a pile foundation, a beam, a retaining wall and aplurality of anchor rods, the pile foundation comprises a plurality of bearing piles embedded in a bank slope stable rock soil body, the beam is arranged above the pile foundation, the retaining wallis arranged on the upper surface of the beam, and the retaining wall structure further comprises a drainage hole. The construction method includes steps: constructing the pile foundation; constructingthe beam; constructing the anchor rods; constructing the drainage hole; constructing the retaining wall; mounting a check valve. The retaining wall structure can effectively solve the problem in large reservoir hydro-fluctuation belt shoreside gully area bridge pile foundation protection technology and is advanced in technology and high in economic efficiency.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a pile-supported drainage anchor retaining wall structure. Background technique [0002] The drawdown area of ​​the reservoir is a special area where the submerged land around the reservoir is periodically exposed to the water surface due to the periodic fluctuation of the water level of the reservoir. Large-scale reservoirs often have very large drawdown zones. For example, the height of the drawdown zone of the Three Gorges Reservoir Project on the Yangtze River, which was built in 2009, is as high as 30m. 60m. Due to the periodic immersion of reservoir water and groundwater and the infiltration of groundwater, the rock and soil mass in the drawdown area of ​​the reservoir is more strongly weathered, which makes the phenomenon of reservoir bank reconstruction occur from time to time. When there are buildings (structures) on the banks of the reservoir, the rec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/02E02D5/76E02D3/10
CPCE02D3/10E02D5/76E02D29/0233
Inventor 王俊杰张昊煜温辉波贾学明阎宗岭
Owner CHONGQING JIAOTONG UNIVERSITY
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