环形巷道在生产矿井冻结孔水害治理中的应用  

Application of circular roadway in water damage control of frozen holes in production mines

作　　者：张旺余 韩定锋 余智秘 张宝锋 郭震 ZHANG Wangyu;HAN Dingfeng;YU Zhimi;ZHANG Baofeng;GUO Zhen(Shaanxi Binchang Mining Group Co.,Ltd.,Xianyang 713200,China;Shaanxi Binchang Hujiahe Mining Co.,Ltd.,Xianyang 713602,China)

机构地区：[1]陕西彬长矿业集团有限公司,陕西咸阳713200 [2]陕西彬长胡家河矿业有限公司,陕西咸阳713602

出　　处：《陕西煤炭》2023年第5期162-165,共4页Shaanxi Coal

摘　　要：通过分析胡家河煤矿副立井井筒冻结孔水害形成机理及反复原因,发现冻结工程自然解冻后,冻结孔环状空间将所有的含水层连成一体,高压水力作用下会造成马头门突然涌水。为不影响矿井正常生产,在井筒隔水层中沿冻结圈施工小断面环形巷道,减少井筒扰动,逐步揭露、截断冻结管,对冻结孔环状空间注浆加固,并对环形巷道回填混凝土,形成人工隔水层,彻底隔断环状导水通道,从而根治立井冻结孔水害。环形措施巷系统工程治理冻结孔水害对矿井正常生产的影响程度较低,且治理的质量可靠,对同类条件矿井有良好的借鉴意义。The formation mechanism and repeated reasons of water damage in the frozen hole of the auxiliary shaft of Hujiahe Coal Mine are analyzed.After the natural thawing of the frozen project,the annular space of the freezing hole connects all the aquifers together,and under the action of high water pressure,water suddenly gushes from the Matoumen.In order to not affect the normal production of the mine,a treatment approach is proposed:constructing a small-section circular roadway along the freezing circle in the shaft’s impermeable layer,reducing shaft disturbance,gradually exposing and cutting off freezing pipes,grouting and reinforcing the circular space of the freezing hole,and backfilling the circular roadway with concrete to form an artificial impermeable layer,and completely isolating the circular water channel,thus eradicating the water damage caused by the freezing hole in the vertical shaft.The circular“measure”roadway system engineering has a relatively low impact on the normal production of mines with freezing hole water damage,and the quality of the treatment is reliable with a good reference for mines with similar conditions.

关 键 词：冻结孔水害 环形巷道 冻结法 导水通道 水害机理 

分 类 号：TD745[矿业工程—矿井通风与安全]