Blockage dredging and draining enhancement process for drain holes of side slopes and device for blockage dredging and draining enhancement process

Abstract

The invention discloses blockage dredging and draining enhancement process for drain holes of side slopes and a device for the blockage dredging and draining enhancement process. Silt deposited in a drain pipe is removed manually or mechanically at first, then a high-pressure air inlet pipe is inserted into the drain pipe, pressure loss plugging is carried out at an outlet end of the drain pipe, compressed air which is compressed by an air compressor is pumped into the drain pipe via the air inlet pipe, the silt blocked in a small hole on the drain pipe is removed by the aid of impact force of the compressed air, then permeation consolidated soil surrounding the drain pipe is in pressure split by the aid of the compressed air entering the permeation consolidated soil via the drain pipe, and is loosened, and gaps are formed in the permeation consolidated soil. The blockage dredging and draining enhancement process and the device aim to solve the problem that a draining effect is deteriorated or a draining function is invalid after existing drain holes of side slopes are used for a long time, small hole of a filter pipe section is washed by the high-pressure compressed air, the soil outside the drain pipe is split by the aid of the high-pressure compressed air, and accordingly, effective permeability of the drain pipe is recovered or enhanced.

Description

technical field [0001] The invention relates to a process for dredging blockage and enhancing drainage effect of drainage holes in slopes during use in fields such as water conservancy and hydropower engineering, traffic engineering, and the like, and also relates to a device for realizing the process. Background technique [0002] In the existing slope engineering, the common drainage holes used in a large number can generally play the due drainage function when the project is completed or for a period of time after operation, but after a period of use, it often appears that the drainage hole is damaged by water. The phenomenon of clogging of the carried mud and sand will seriously affect the drainage effect of the drainage holes and increase the risk of instability of the slope engineering. There are three main reasons for the drainage failure caused by the blockage of the slope drainage holes: one is that the drainage pipe in the drainage hole is blocked by mud and sand; ...

AI Technical Summary

Problems solved by technology

[0002] In the existing slope engineering, the common drainage holes used in a large number can generally play the due drainage function when the project is completed or for a period of time after operation, but after a period of use, it often appears that the drainage hole is damaged by water. The phenomenon of clogging of the carried mud and sand will seriously affect the drainage effect of the drainage holes and increase the risk of instability of the slope engineering

There are three main reasons for the drainage failure caused by the blockage of the slope drainage holes: one is that the drainage pipe in the drainage hole is blocked by mud and sand; the second is that the small holes on the filter pipe section of the drainage pipe are blocked by mud and sand; Reduced permeability due to osmotic compaction

At present, the mud and sand clogged in the drainage pipe can only be removed manually to improve the drainage effect of the drainage pipe; but there is still no effective method for the drainage failure caused by the blockage of the filter pipe and the osmotic compaction of the soil around the drainage hole.

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