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七煤集团建设工程公司在施工辽阳铧子石膏矿主、风井井筒时 ,多次采用泄压注浆法成功通过中小型含水层 ,对小型突水进行了有效封堵 ,取得了较好的经济效益
During the construction of the main and air shaft of Huaizi gypsum mine in Liaoyang, the construction and construction company of No. 7 Coal Group successfully used the small-and-medium-sized aquifer through the pressure-relief grouting method several times to block effectively the small water inrush and achieved a good Economic benefits