Semi-hollow pile having drainage and skid resistance effects and construction method of semi-hollow pile

A semi-hollow, functional technology, applied in the direction of sheet pile walls, soil protection, foundation structure engineering, etc., can solve the problems of clogged drainage pipes, poor shear and flexural strength, and affect the drainage effect, and achieve the effect of reducing the impact

Active Publication Date: 2017-05-31
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing drainage and anti-slide pipe piles have obvious water collection and drainage functions, but because the entire pile body is hollow, the shear and flexural strength of the pile body is relatively poor
The drain pipe is easy to cause blockage, affecting the drainage effect

Method used

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  • Semi-hollow pile having drainage and skid resistance effects and construction method of semi-hollow pile
  • Semi-hollow pile having drainage and skid resistance effects and construction method of semi-hollow pile
  • Semi-hollow pile having drainage and skid resistance effects and construction method of semi-hollow pile

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Effect test

Embodiment 1

[0040] This embodiment discloses a semi-hollow pile with drainage and anti-slide function, including a prefabricated reinforced concrete semi-hollow pile 1 and a siphon 3 implanted in a landslide body 7 .

[0041] see figure 2 , image 3 and Figure 4 , the prefabricated reinforced concrete semi-hollow pile 1 includes a hollow pipe pile 101 and a solid cylindrical pile 102 . The solid cylindrical pile 102 is disposed at the bottom of the hollow pipe pile 101 . The hollow pipe pile 101 and the solid cylindrical pile 102 are integrated. The prefabricated reinforced concrete semi-hollow pile 1 has the main reinforcement 1031 of the pile body and the spiral stirrup 1032 of the pile body. The main reinforcement 1031 of the pile body and the spiral stirrup 1032 of the pile body together form a reinforcement cage 103 .

[0042] see figure 1 , after the solid cylindrical pile 102 passes through the sliding surface 8, it is embedded in the stable bedrock 9 below. The height of ...

Embodiment 2

[0048]This embodiment discloses a construction method of the semi-hollow pile with drainage and anti-sliding effect described in Embodiment 1, comprising the following steps:

[0049] 1) Manufacture the prefabricated reinforced concrete semi-hollow pile 1 according to the designed pile diameter and pile length, and reserve the water collection hole 1011.

[0050] 2) Excavate the pile hole to the design depth. Wherein, the diameter of the pile hole is larger than that of the pile body.

[0051] 3) Lift the prefabricated reinforced concrete semi-hollow pile 1, align the pile position, adjust the verticality of the prefabricated reinforced concrete semi-hollow pile 1, and then put the prefabricated reinforced concrete semi-hollow pile 1 into the pile hole to the design elevation.

[0052] 4) Thin-walled casings with different diameters are used to construct the fine sand layer 203 , the medium-coarse sand layer 202 and the gravel layer 201 in layers, and the siphon pipe 3 is arr...

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Abstract

The invention provides a semi-hollow pile having drainage and skid resistance effects and a construction method of the semi-hollow pile. The semi-hollow pile comprises a prefabricated reinforced concrete semi-hollow pile body, an in-pile filling core, a siphon and an external siphon device; the upper part of the prefabricated reinforced concrete semi-hollow pile body is hollow, and the lower part is solid; the lower solid pile body penetrates through a sliding surface and is embedded in a stable bed rock; multiple water collecting holes are formed in the upper hollow pile body along the pipe diameter; the hollow pile body is filled with the core; and the siphon is arranged in the middle of the hollow pile body and is connected with the external siphon device. The construction method of the semi-hollow pile comprises the steps as follows: the reinforced concrete semi-hollow pile body is prefabricated, a pile hole is excavated, the pile body is placed in the pile hole, the siphon is placed in, the pile is filled with the in-pile filling core in a layered manner, a clay layer is laid, and the like. Comprehensive consideration is performed in two aspects including drainage and skid resistance, and the effective supporting and stopping structure and the construction method are provided for prevention and control on landslide hazards induced by rainfall.

Description

technical field [0001] The invention relates to the fields of rock-soil retaining structure and slope treatment, in particular to an anti-slide pile for slope support seriously affected by rainfall and a construction method thereof. Background technique [0002] There are many factors affecting slope stability, among which the influence of water on slope is an important factor leading to slope instability. According to statistics, about 90% of slope failures (landslides) occur in the rainy season, especially with the participation of heavy rain, continuous rainfall or groundwater, which fully demonstrates that water is an important factor affecting slope stability. During the rainfall process, the scouring effect on the slope is great, and the rainwater infiltrates into the rock and soil mass, causing the rock and soil mass to be saturated, the pressure of the crack water increases, the bulk density increases, and the shear strength of the rock and soil mass decreases. In a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/30E02D3/10E02D5/48
CPCE02D3/103E02D5/30E02D5/48
Inventor 黄达石林岑夺丰
Owner CHONGQING UNIV
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