Joint-free continuous in-situ diaphragm wall construction device and curtain construction method

Abstract

The invention discloses a construction device of a joint-free continuous in-situ diaphragm wall and a curtain construction method.The construction device of the joint-free continuous in-situ diaphragm wall comprises a supporting mechanism, a cutting mechanism, a power mechanism, a crushed material collecting and screening mechanism and an anti-seepage material preparing and producing mechanism, and the cutting mechanism is connected with the input end of the crushed material collecting and screening mechanism through a stratum crushed material output pipe; the qualified crushed material output end of the crushed material collecting and screening mechanism is connected with the input end of the anti-seepage material preparing and producing mechanism, and through the cutting mechanism, the power mechanism, the crushed material collecting and screening mechanism and the anti-seepage material preparing and producing mechanism, the depth of the curtain is guaranteed, meanwhile, transverse continuous cutting and grooving construction of the water cut curtain is achieved, and the construction efficiency is improved. The construction efficiency and the water interception effect of the water interception curtain are enhanced; and in the transverse continuous cutting wall forming process, the in-situ material is used for preparing an anti-seepage material, the in-situ anti-seepage wall is formed, and the technical problems that in the prior art, the strength of a curtain wall is insufficient, and the water interception efficiency is poor due to the large number of water interception curtain connectors are solved.

Description

technical field [0001] The invention belongs to the field of open-pit coal mines, and relates to a construction device for cutoff walls, in particular to a jointless continuous in-situ cutoff wall construction device and a curtain construction method. Background technique [0002] There are more than 5,300 open-pit coal mines in my country, with an annual output of about 4 billion tons of coal. Coal mines located in sand and pebble areas with strong water supply and strong recharge have high permeability coefficients and are fed by surface rivers. Pumping wells are often used to pump water and underground drainage methods are used to control or reduce mine pit water levels, and the amount of drainage and precipitation is huge. Long-term dredging has resulted in a large-scale drop in groundwater levels, difficulty in producing water for the surrounding residents, death of shallow vegetation, land desertification, discharge of mine water to pollute surface water bodies, huge c...

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Problems solved by technology

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a jointless continuous in-situ anti-seepage wall construction device and a curtain construction method to solve the problem of insufficient strength of the curtain wall and the large number of joints of the water-cutting curtain in the prior art. Technical problems of poor interception efficiency

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