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太湖煤炭公司白泥场煤矿采用主、副井筒开拓,主井和副井均为净径5米、荒径5.9米、井深588米。两井筒穿过第四纪、白垩纪浦口组粉砂岩、砂砾岩、砾岩及二迭纪龙潭组弧峰组等地层。第四纪表土层厚43米,上部27米为灰色和灰褐色粘土、灰色砂质粘土和灰色亚粘土,下部16米为砾石层。表土层中有6层粉砂质粘土,总厚7.01米,1层淤泥质粘土,厚3.5米,砾石层的砾径3～70厘米。表土层凿井期预计涌水量为4米~3/小时,采用了触变泥浆护壁人工挖泥沉井法施工。白垩纪浦口组红层,从43米至292米,层厚249米。该层上部124米为紫红或砖红色泥岩、粉砂岩和细砂岩,岩石上软下硬,其
The white muddy field coal mine of Taihu Coal Company exploits the main and auxiliary wellbores to open up. The main and auxiliary wells are both 5 meters in net diameter, 5.9 meters in descent and 588 meters in depth. Two wells through the Quaternary, Cretaceous Pukou group of siltstone, glutenite, conglomerate and Permian Longtan Group arc peak formation. Quaternary topsoil is 43 meters thick, with the top 27 meters gray and beige clay, gray sandy clay and gray clay, and the bottom 16 meters of gravel. There are six layers of silty clay in the topsoil, with a total thickness of 7.01 meters, a layer of muddy clay, 3.5 meters thick gravel layer gravel 3 to 70 cm. The estimated amount of gushing water in the topsoil sinking period is 4m ~ 3 / h, using thixotropic slurry retaining wall artificial dredging caisson method construction. Cretaceous Pukou red layer, from 43 meters to 292 meters, layer thickness of 249 meters. The upper 124 meters of the layer is mauve or brick red mudstone, siltstone and fine sandstone, the rock on the soft under hard, its