High-pressure charging intercepting method for landslide rescue control

A high-pressure, slope technology, applied in the direction of climate change adaptation, excavation, construction, etc., to achieve the effect of fast water interception, low engineering cost and obvious effect

Inactive Publication Date: 2012-08-15
ZHEJIANG UNIV
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  • Claims
  • Application Information

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Problems solved by technology

When the landslide is deformed and damaged, it will take a certain amount of time to implement the landslide rescue treatment process. During this period, the most worrying thing is often the further rainfall, because there is still no effective means to quickly prevent the rainfall from replenishing the groundwater of the landslide body.

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  • High-pressure charging intercepting method for landslide rescue control

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Embodiment Construction

[0008] The principle of the present invention is: aiming at the mode of action that the groundwater level of the landslide body rises and affects the stability of the landslide due to the infiltration of water from the rear edge of the slope, and utilizes the principle that the permeability of the rock and soil decreases rapidly as the saturation decreases, the upstream slope of the landslide is Arrange a series of boreholes in the area, insert gas pipes into the boreholes, press high-pressure gas into the boreholes with an air compressor, and form an unsaturated zone in the slope of the trailing edge of the landslide through the pressure of high-pressure gas, reducing the local section of the slope. The groundwater permeability coefficient can reduce the infiltration of groundwater into the landslide area at the rear edge of the slope, reduce the risk of landslide disasters, and win time for the implementation of landslide control engineering measures.

[0009] The purpose and...

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Abstract

The invention discloses a high-pressure charging intercepting method for landslide rescue control. A plurality of drill holes are arranged in a landslip rear edge slope area along the contour line of a slope; the interval between the adjacent drill holes is 8-10m; an air delivery pipe is inserted into each drill hole; the upper part of the corresponding air delivery pipe is a drill hole wall closed section; the lower part of the corresponding air delivery pipe is a drill hole wall ventilate section; the joint of the drill hole wall closed section; and the drill hole wall ventilate section is 3-5m below the face of the slope; the length of the drill hole wall ventilate section can be 3-5m in general; and the pneumatic tubes are respectively connected with an air compressor through air delivery pipelines. The high-pressure charging intercepting method for the landslide rescue control is high in intercepting speed and is simple in construction technology. The whole process is not related with earth rock excavation engineering, thereby, the engineering cost is low; an effect of controlling the ground water level of a landslide mass to rise is obvious; and the time can be gained for landslide rescue.

Description

technical field [0001] The invention relates to a landslide rescue treatment method, in particular to an emergency rescue treatment method suitable for landslides whose deformation and damage of slopes are mainly affected by groundwater supply at the trailing edge of the slope. Background technique [0002] Groundwater is often the main factor affecting the stability of landslides, and the initiation of most landslides is due to the increased sliding force caused by the rise of groundwater levels. For most landslides, the slope groundwater mainly comes from the rainfall infiltration in the trailing slope area. When the landslide is deformed and damaged, it will take a certain amount of time to implement the landslide emergency management process. During this period, the most worrying thing is often the further rainfall, because there is still no effective means to quickly prevent the rainfall from replenishing the groundwater of the landslide body. Therefore, in order to pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20E02D19/20
CPCY02A10/23
Inventor 杜丽丽尚岳全康剑伟刘长殿
Owner ZHEJIANG UNIV
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