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焦作矿务局古汉山矿设计年产１２０万ｔ，采用１对立井开拓。主、副井深均为５４６．５ｍ。井筒上部表土层和风化带采用冻结法施工，冻结深度分别为２７７ｍ和２７１ｍ。下部基岩段有数层含水层，其中Ｓ１７砂岩含水层为主要含水层。根据地质报告提供的井筒涌水量，原中煤总公
Jiaozuo Mining Bureau ancient Han mining design with an annual output of 1.2 million t, using a vertical shaft to develop. The main and auxiliary wells are both 546.5m deep. The upper part of the wellbore topsoil and weathering belt construction by freezing method, the freezing depth of 277m and 271m respectively. The lower bedrock section has several aquifers, of which the S17 sandstone aquifer is the main aquifer. According to the geological report provided by the wellbore gushing water, the original Chinese coal