摘要
裂隙水影响的极软岩巷道比一般软岩巷道变形破坏机制更为复杂。通过实践得知,治理此类裂隙水影响的软岩巷道的关键是控水,在成功阻断了裂隙水的泥化作用后,再配合高强预应力支护体系即可有效控制此类软岩巷道。在实践中提出了锚网梁索(桁架)高强度预应力支护体系与围岩内注浆为基础的综合控制围岩技术。通过在淮北矿业集团祁南煤矿裂隙水患严重的“三软”煤巷的支护实践,取得了大量的经验。该控制方法也成功地用于后续类似条件巷道。
Deformation mechanism of softrock weakened by fracture water is more complicated than the general one, the practice in situ testifies that a key point of control softrock roadway is controlling water, under the condition of blanking off water, high-strength and pretension system can effectively control this softrock roadway. high-strength and pretension system and grouting is put forward in the practice, through the practice in the ＂three soft＂ coal roadways （soft roof, walls, and floor） of Q＇inan Coal Mine, Huaibei. We acquire a lot of experience, and this supporting system has been successfully applied in other coal mines.
出处
《煤炭科技》
2007年第2期65-68,共4页
Coal Science & Technology Magazine
关键词
裂隙水
泥质软岩
综合控制
注浆
fracture water
argillaceous soft rock
comprehensive supporting method
grouting fracture water
argillaceous soft rock
comprehensive supporting method
grouting
