东荣三矿风井透水涌砂分析与处理

Analysis and Processing of Water Burst and Running Sand in Air Shaft Construction in Dongrong No.3 Coal Mine

双鸭山矿业集团公司东荣三矿东风井于1994年1月8日掘进深219m时,冻结管断裂,漏失盐水融化冻结壁,造成透水、涌砂淹井。该矿把测温孔改为冻结孔进行强化冻结,经过90d的强化冻结,透水"窗口"闭合,达到了设计强度,将事故损失降到最低点。

In Dongrong No.3 Coal Mine of Shuangyashan Mining Industry Group Comp.,when east air shaft was drived 219 m deep on January 8th,1994,a frozen pipe ruptured,the leakage salt water melt the frozen wall,the water burst,running sand flooding the mine were caused.The temperature holes were changed into the frozen holes for enhanced freezing.After intensive freezing in 90 days,flooding ＂window＂ was closed,the design strength was achieved,the accident loss will fall to a minimum.