基于富水软岩层的鹰骏一号煤矿井筒冻结施工技术
Freezing Construction Technology for Shaft of Yingjun No.1 Coal Mine Based on Rich Water Soft Rock Layers

鄂尔多斯盆地中生代地层煤炭资源丰富，但煤层上覆地层岩体较软弱且含水量大。为保证煤矿矿井的快速建设，鹰骏一号煤矿副立井井筒采用了冻结法快速施工技术。采用全深冻结方案，冻结孔设置为主排孔 + 防片帮孔冻结。结合现场施工实践和冻结帷幕分析，该技术能隔绝地下水，且很好地提高了井壁稳定性，为井筒高效掘砌提供了良好的条件。
The Mesozoic strata in the Ordos Basin are rich in coal resources, but the overlying rock mass of the coal seam is relatively weak and has a high water content. To ensure the rapid construction of coal mines, the auxiliary shaft of Yingjun No.1 coal mine adopts the freezing method for rapid construction technology. Adopting a full depth freezing scheme, the freezing holes are set as the main row holes + anti plate auxiliary holes for freezing. Based on on-site construction practice and frozen curtain analysis, this technology can isolate water from the ground and greatly improve the stability of the wellbore, providing good conditions for efficient construction of the wellbore.