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邯邢西石门铁矿水文地质勘探(1958—1973年)曾是五进五出,抽水试验水量,由单孔几十吨/日—群孔1.7万吨/日,未能深揭矿区水文地质条件。八年基建(1970—1977年)未敢进入“奥灰”富水层掘进。1977年末,六井相继在+120米中段落平,井下虽拥有近20万吨/日的排水能力,但要顺利通过3000余米的“奥灰”高压(水压8—10kg/cm~2)富水层,仍是北、中、南三采区施工中的主要矛盾。为此我们进行了大流量、大降深的“疏放”试验。通过两时段(78年、80年)两中段(+120米、+40米)两次放
The hydrogeological exploration of Handan Xingshi Shimen Iron Mine (1958-1973) was once conducted in five or five outbursts. The water quantity for pumping test was from a single hole of several dozen tons / day with 17,000 tons per day and failed to deeply reveal the hydrogeology of the mining area condition. Eight years of infrastructure (1970-1977) dared not enter the “Austrian gray” water-rich tunneling. At the end of 1977, the six wells successively landed at the midpoint of +120 meters. Although the underground has a drainage capacity of nearly 200,000 tons per day, it is necessary to smoothly pass the “Ordovician” high pressure (water pressure 8-10 kg / cm 2 ) Rich water layer is still the main contradiction in the construction of the northern, central and southern mining areas. For this reason we carried out a large flow, greatly reduced the “dredge” test. Through two periods (78 years, 80 years) two middle (120 meters, 40 meters) twice