Analysis And Prevention And Cure Of Admission And Diversion Of Water In Bei Xulou Coal Mine

The Bei Xulou mine lie in the Tengbei diggings of the county Teng coalfield (near the Zao-Tao diggings), the falling pole develop abroad. The paper analyze the character of the interior subsidence, exterior shape, cause of formation and the mechanism of the burst of the collapse column, illustrating the collapse column' influence to the safety procreative of the mine and bringing forward the prevention and cure' measure. The collapse column is production of sink terrene of the abstruse ash dissolve rock inanition, the form of the dissolve rock falling pole first rest with collapse column' grade of the development.The Bei Xulou mine lie in the midst of the horst structure that the area big fault (Bei Xulou fault, Da Liuzhuang fault) formative, the activity of the ground water is restricted. The Bei Xulou mine' ground water alternate slow, so the collapse column' transporting water' ability is very faintness, which activates the ground water' possibility is zero. The filling' suppress and cementation' degree is high, which goes against the exudation of the ground water and which belong to the no- no- conducting or faintness conducting. The mining activity influence to the floor is very small, whose destroy depth fall short of 2 miles, so which influence to the collapse column' conduct ability is small. Moreover, the water table is falling year after year, the hydraulic pressure is weaken, which often reduce to the falling pole is no water to lead.The conduct ability of the collapse column of the Bei Xulou mine is very faintness, which belong to the no- conducting or faintness conducting. The collapse column' conducting can be prevented.