石拉乌素煤矿风井试挖期间冻结壁透水分析与治理  

Analysis and Control of Freezing Wall Water Permeability During Trial Excavation of Mine Ventilation Shaft in Shila Wusu Coal Mine

作　　者：李小伟 曾凡毅 LI Xiaowei;ZENG Fanyi(Henan Guolong Mine Construction Company Limited,Zhengzhou 450000,China)

机构地区：[1]河南国龙矿业建设有限公司

出　　处：《建井技术》2019年第2期14-16,60,共4页Mine Construction Technology

摘　　要：石拉乌素煤矿风井井筒采用冻结法施工,井筒试挖期间,冻结壁透水。通过分析,弄清了冻结壁透水原因,及时采取了快速填砂注水、降低盐水温度、加大透水部位冻结孔盐水流量等措施,安全通过了透水地段。A mine ventilation shaft in Shila Wusu Coal Mine was constructed with the ground freezing method.During a trial excavation period of mine ventilation shaft,the water permeability of the freezing wall was found.With the analysis,the water permeability cause of the freezing wall was clarified.A rapid sand filling and water injection,brine temperature reduction,brine flow increased in the water permeable section of the freezing bole and other measures were timely conducted and thus the mine shaft was safely passed through the water permeable section.

关 键 词：冻结井筒 水文孔冒水 试挖 冻结壁透水 治理 

分 类 号：TD265.34[矿业工程—矿井建设]