Device and method for synergistic effect of landslide prevention and drainage

A synergistic, anti-sliding pile technology, applied in excavation, construction, infrastructure engineering, etc., can solve the problems of difficult drainage of groundwater, damage to slope stability, affecting the durability of anti-sliding piles, etc. The effect of small number of workers and large anti-skid ability

Pending Publication Date: 2022-01-04
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Anti-slide piles can effectively prevent and control landslides, but the groundwater in the slope is not easy to discharge. A large amount of groundwater accumulation will cause damage to the stability of the slope and affect the durability of the anti-slide piles.

Method used

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  • Device and method for synergistic effect of landslide prevention and drainage
  • Device and method for synergistic effect of landslide prevention and drainage
  • Device and method for synergistic effect of landslide prevention and drainage

Examples

Experimental program
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Effect test

Embodiment 1

[0033] This embodiment provides a synergistic device for landslide prevention and drainage, which includes: anti-slide pile 1, dense well 2, anti-slide pile guard arm 3, first hidden pipe 5, second hidden pipe 4 and drainage hole 7 ; The pile body of the anti-slide pile 1 is provided with a dense well 2; the anti-slide pile guard arm 3 is arranged with a first hidden pipe 5 that is tilted; between the dense wells 2 of adjacent anti-slide piles 1 It communicates with the second dark pipe 4; the dense well 2 communicates with the drain hole 7.

[0034] Preferably, the first dark pipe 5 is a Φ110 PVC pipe.

[0035] Preferably, the second hidden pipe 4 is a Φ140 galvanized steel pipe.

[0036] In this embodiment, preferably, the device for the synergy between landslide prevention and drainage further includes a working well 8; the working well 8 is connected to the drainage tunnel 7.

[0037] Preferably, the drain hole 4 is made of a prefabricated reinforced concrete circular pi...

Embodiment 2

[0043] This embodiment two provides a method for landslide prevention and drainage, and the device for synergy between landslide prevention and drainage is installed at the landslide position. The specific installation method includes the following steps:

[0044] 1) Advance grouting of small holes in the over-excavation part of the hidden pipe in the dense well:

[0045] When the anti-slide pile 1 is excavated to 0.5m above the dense well 2, a borehole with a diameter of 49mm is used to drill downward at a 45° angle, the length is 2.0m, and the horizontal distance between the boreholes is 0.5m. The 49mm PVC grouting pipe 6 is used to perform small hole advance grouting on the over-excavation part of the dense well 2, and the amount of grouting cement is 1t / hole.

[0046] 2) The first hidden pipe 5 of the annular dense well is arranged on the anti-slide pile wall near the sliding surface 13.

[0047] The height along the direction of the pile body is 2m. The method is to over...

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Abstract

The invention relates to the technical field of building construction, in particular to a device and method for synergistic effect of landslide prevention and drainage. The device for synergistic effect of landslide prevention and drainage comprises an anti-slide pile, a dense well, an anti-slide pile protection arm, a first concealed pipe, a second concealed pipe and a drainage tunnel; the dense well is arranged around a pile body of the anti-slide pile; the inclined first concealed pipe is annularly arranged on the anti-slide pile protection arm; the dense wells of the adjacent anti-slide piles are in communication through the second concealed pipes; and the dense well is in communication with the drainage tunnel. The device is suitable for landslide prevention and treatment of landslide areas with large rainfall capacity, concentrated rainfall, relatively shallow underground water burial depth, large water quantity and relatively large influence of underground water on a slope body; and the device is suitable for damage treatment of landslides in railway engineering and highway engineering as well as old landslides.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a device and method for synergistic effects of landslide prevention and drainage. Background technique [0002] Sliding piles are piles that pass through the landslide body and go deep into the slide bed to support the sliding force of the slide body and stabilize the slope. It is suitable for shallow and medium-thick landslides and is an anti-slide treatment. main measure. Anti-slide piles can effectively prevent and control landslides, but the groundwater in the slope is not easy to discharge, and a large amount of groundwater accumulation will cause damage to the stability of the slope and affect the durability of the anti-slide piles. [0003] The information disclosed in this background section is only intended to enhance the understanding of the general background of the present invention, and should not be considered as an acknowledgment or any form of sugge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20E02D19/10E02D19/20E02D5/74E02D5/24E02D15/04
CPCE02D17/207E02D19/10E02D19/20E02D5/74E02D5/24E02D15/04
Inventor 张玉芳颜志雄李健袁坤黄启迪杨忠民宋国壮万军利向润泽周文晈尹振华高旭李伟李嘉明蹇晓华侯李杰
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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