冻结立井壁后出水分析及处理  

Analysis and Treatment on Water Inflow from Backwall of Mine Shaft Liner in Mine Freezing Shaft

作　　者：佟强[1] 杨广详 孙德林[1] 杜丙启[1] 

机构地区：[1]山东能源新汶矿业集团有限责任公司,山东新泰271233

出　　处：《建井技术》2014年第5期8-11,共4页Mine Construction Technology

摘　　要：内蒙长城一矿东区风井采用冻结法凿井。冻结停机1个月后,井筒向下掘进时,冻结段井壁后面出现涌水,涌水量最大达60m3/h,影响施工安全。根据对壁后出水原因的分析,找到了导水通道位置。然后施工壁后探水注浆孔,采用化学注浆材料马丽散E,对导水通道进行封堵;只用了5d,就封堵住了壁后涌水,收到了预期效果。A mine ventilation shaft in the east block of Inner Mongolia Changcheng No.1 Mine was sunk with a ground freezing method.After an operation of a freezing machine stopped for one month,during a downward excavation conducted in a mine shaft,a water inflow occurred from a backwall of the mine shaft liner at the freezing section,a max water inflow was 60m3 /h and a safety construction was influenced. According to the analysis on the causes of the water inflow from the backwall of the mine shaft liner,a location of the water flow channel was found. Then a water detection and grouting borehole was drilled in the backwall,a chemical grouting material ——— Marithan E was applied to seal the water flow channel. The water inflow from the backwall was sealed within 5 days only and an ex pected effect was obtained.

关 键 词：冻结立井 壁后出水 冻结管断裂 纵向测温 壁后注浆 

分 类 号：TD265.34[矿业工程—矿井建设]