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兴隆煤矿汪庄矿采用竖井阶段石门方式开拓,年设计能力45万吨。井筒直径5m,分两个水平开采。井口标高+489m,第一水平标高+370m,第二水平标高为+270m。该井于1959年投产,经过25年的开采,第一水平的生产己接近尾声。为使一二生产水平的正常衔接,必须进行竖井延深。该井的延深方式是由一水平东大巷做暗斜井到+270m水平后,开拓二水平的基本大巷、井底车场和水仓峒室,然后做辅助斜井和平巷到+348m,距副井井筒底20m,在辅助巷和井筒底间预留7m岩柱,在不破坏岩柱的条件下,由二水平往上全断面开凿立井(图1)和安装其
Xinglong coal mine Wangzhuang mine shaft approach to open up the shaft stage, the design capacity of 450,000 tons. Wellbore diameter of 5m, divided into two horizontal mining. Wellhead elevation + 489m, the first level elevation + 370m, the second level elevation + 270m. The well put into operation in 1959, after 25 years of mining, the first level of production is nearing completion. In order to maintain the normal production level of production level one or two, it is necessary to deepen the shaft. The well is delaminated by a horizontal Dongda alley to a depth of +270 m after which it is to open up two levels of basic lanes, bottom-surface parking lots and water storage tanks, and then make secondary inclined shafts and drift galleries to + 348m , 20m away from the shaft bottom of the auxiliary shaft, 7m rock columns are reserved between the auxiliary lane and the bottom of the wellbore. The vertical shaft shall be drilled from the second level to the upper full level without damaging the rock columns (Figure 1)