摘要
介绍了8103工作面沿空留巷支护参数及施工工艺,并选取测点进行了现场观测。观测结果表明,在距工作面后方的20 m以内,由于受到采动影响比较大,巷道围岩矿压显现较明显,测站巷道顶底板移近量明显大于两帮移近量,且设计的锚杆、锚索及支柱支护能够满足在该种条件下的围岩控制要求。
The paper introduced the supporting parameters and construction technology of gob-side entry retaining in No.8103 mining face. Mine pressure observation shows that in the less than 20 m behind the working face,due to the relatively large mining influence,the roadway surrounding rock pressure is obvious,and the convergence of roof and floor is significantly larger than the two side drift,but the designed support mode of bolt,anchor cable and single prop can meet the requirements of surrounding rock control in the kind of geological conditions.
出处
《陕西煤炭》
2017年第6期87-90,126,共5页
Shaanxi Coal
关键词
坚硬顶板
围岩控制
监测
hard roof
surrounding rock control
monitoring
