复杂地质条件下工作面单体支柱的合理确定与应用

Resonable Determination and Application of Singal Prop in Face Under Complex Geological Condition

淮北矿业集团公司童亭煤矿在7414工作面应用了DWS12/25-250型单体支柱,成功地解决了因煤层结构复杂、厚度变化大等在生产中存在的问题,实现了安全高效,降低了吨煤成本。

The DWS12/25 - 250 type double -telescopic prop is applied in the No. 7414 face in Tongting Coal Mine of Huaibe Mining Industry Group Comp. The existing problems in the production are solved. The cost of a ton coal is reduced.