Grouting process for working surface of deep well
A technology of working face and process, applied in vertical shaft equipment, shaft lining, mining equipment, etc., can solve problems such as failure of deep well grouting engineering, and achieve the effects of universality, short grouting construction period and low construction cost
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[0021] Use this deep well face grouting technology to carry out shaft grouting construction for the main shaft of Yuncheng Coal Mine. The specific technology is as follows:
[0022] Check the drilling geology and hydrogeology of the main shaft of the coal mine as follows:
[0023] The stratum that the shaft passes through includes Quaternary, Upper Tertiary, and Permian Upper Shihe Formation. The depth of the topsoil section is 534.30m, and the Permian Upper Shihe Formation (534.30~976.48m without penetration) is 442.18m thick, mainly composed of variegated siltstone, mudstone and gray fine sandstone, gray-white to light green gray sandstone and coarse sandstone , The upper part is weathered, the rock belt is yellowish-brown, the cracks are relatively developed, and it is mostly filled with calcite, and the stratum dip is 4°~6°. Checking the drill hole, no fault fracture zone and karst cave are found. The main aquifer in the bedrock section is the sandstone aquifer of the Upper Sh...
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