A method for drawing water from seepage wells in arid and semi-arid areas

Abstract

The invention provides a method for collecting water from seepage wells in arid and semi-arid areas, which includes the following steps: S1: digging a water collection shaft on a first-level terrace on one side of the river through impact drilling construction technology; S2: using horizontal steering drilling technology A number of radiating holes are constructed on the first terrace on the other side of the river. The radiating holes pass through the sand and gravel layer at the bottom of the river bed and are connected to the water collection shaft. Compared with the traditional seepage well, the method provided by the invention has a simple structure; the entire construction process is ground operation, which is highly safe; the radiant holes pass through different depths of the entire filter bed, and the water supply is large; through the adsorption and reaction of the natural filter bed The quality of the groundwater that finally enters the seepage well is good; according to the seasonal change of river water flow, different radiant holes are selected to work; after the filter hole on the filter tube in the radiant hole is blocked, the river water can be pumped for flushing, which is simple and convenient; the small diameter inside the radiant hole The third filter tube can be replaced after it is damaged to extend the service life of the seepage well.

Description

technical field [0001] The invention relates to a method for taking water from a seepage well, in particular to a new method for taking water from a seepage well in an arid and semi-arid area. Background technique [0002] The inland northwest of my country is located in an arid and semi-arid area, with less precipitation and a relatively dry climate. Therefore, water resources have not only become an important environmental factor in this area, but also the most important natural resource in people's production and life. However, with the development of society and economy, the waste and pollution of water resources caused by human activities make the available water resources less and less at present, and the serious water resource crisis has aroused people's widespread concern. In order to solve the water shortage problem in Northwest China, people are increasingly exploiting underground diving and even confined water, which not only costs a lot, but also causes serious e...

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Problems solved by technology

[0004] Therefore, based on the natural purification advantages of the river bed, more and more seepage wells have been adopted by many water source projects. However, the traditional seepage well is a kind of groundwater intake structure with a relatively complicated structure. The seepage hole consists of four parts. The traditional seepage well requires a lot of underground work during the excavation process, which is highly dangerous. At the same time, once the radiation hole (seepage hole) is blocked, it is not easy to clean, resulting in a greatly reduced water output from the seepage well. The service life of seepage well

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