Construction method of air curtain wall

Abstract

The invention provides a construction method of an air curtain wall. The construction method specifically comprises the following steps that 1, a plurality of air injection hole units are arranged onthe periphery of the side of a mine pit; 2, an air injection sleeve and an air injection pipe are connected in a welded mode, a pipe opening of the air injection sleeve is sealed, and a connector connected with an air conveying pipe is arranged on the air injection sleeve; 3, the air injection hole units are subjected to hole washing with clear water, and well wall mud is washed away; and 4, the air injection pipe is connected with the air conveying pipe, the air conveying pipe is connected with an air compressor, and the rest can be done in the same manner, so that the plurality of air injection hole units in rows are connected according to the steps to form the air curtain wall. The air curtain wall is used for preventing and treating mine pit underground water, the underground water level around the mine pit cannot be decreased, the underground water level around the mine pit can be increased instead, and the surrounding ecological environment can be protected; and meanwhile, a large amount of underground water can be prevented from flowing into the mine pit, the effect of preventing and treating the mine pit underground water is achieved, the cost is low, construction is easy,and the construction method can be popularized within a large range.

Description

technical field [0001] The application relates to the technical field of groundwater exploitation and prevention, in particular to a construction method of an air curtain wall. Background technique [0002] Judging from the current water control measures in open-pit mines, the main measures are to drill wells around the pit to pump water and drain water to lower the groundwater level and prevent the surrounding groundwater from flowing into the pit. This method is a traditional groundwater control technology; but with the implementation of this method, A large groundwater drop funnel has been formed around the mine pit, which has caused a sharp drop in the groundwater level in a large area, which has affected the ecological environment around the mine pit, destroyed a large number of grassland vegetation, and affected agricultural and animal husbandry production; the second is to use the grouting curtain Water-stopping and filling of cofferdams by excavating foundation trenc...

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Problems solved by technology

[0002] Judging from the current water control measures in open-pit mines, the main measures are to drill wells around the pit to pump water and drain water to lower the groundwater level and prevent the surrounding groundwater from flowing into the pit. This method is a traditional groundwater control technology; but with the implementation of this method, A large groundwater drop funnel has been formed around the mine pit, which has caused a sharp drop in the groundwater level in a large area, which has affected the ecological environment around the mine pit, destroyed a large number of grassland vegetation, and affected agricultural and animal husbandry production; the second i

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