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岱河煤矿原设计是年产60万吨的中型矿井,1965年底投产,后经更新改造产量逐年上升,到1986年年产量上升到150万吨,职工人数由1773人增加到7339人。随着开采面的扩大,塌陷区范围也随之增大,建筑用地日益增多,环境污染日益严重。老矸石山对其附近地下的压力负荷,使更新改造老矿过程中,新打的付井受到了威胁。这个新副井离我矿秆石山仅60m,此矸石山积存矸石约140万吨,其压力可以通过地表粉沙传递到井筒,使井筒的稳定性受到影响。为了改善矿区环境,消除矸石山的危害,我们进行了如下工作。
Daihe Coal Mine was originally designed to produce 600,000 tons of medium-sized mines, put into operation by the end of 1965, after the renovation and production increased year by year, by 1986 the annual output rose to 1.5 million tons, the number of workers increased from 1,773 to 7,339 people. With the expansion of the mining area, the scope of the subsidence area will also increase, with more and more land for construction and increasingly serious environmental pollution. Old waste rock near the underground pressure on the load so that the process of upgrading the old mine, the new hit pay wells have been threatened. This new auxiliary shaft is only 60m away from mine stalks and rocks. This gangue pile accumulates about 1.4 million tons of waste rock, and the pressure can be transmitted to the wellbore through the surface powder sand so that the stability of the wellbore will be affected. In order to improve the mining environment, eliminate the hazards of waste rock, we conducted the following work.