摘要
巷道断面爆破后,喷射混凝土不但可以封闭围岩,防止围岩风化,有利于淋水处理,而且还可以改善围岩应力状态,支撑围岩冠石,维持围岩稳定。
After excavating of roadway ,jetting concrete can not only obturate the wall rock, prevent the wall rock from airslaking, and conduce to watering, but also improve the stress state of the wall orck, support the wall orck, keep stability of the wall rock.
出处
《煤炭技术》
CAS
2006年第3期63-65,共3页
Coal Technology
关键词
喷射混凝土
喷层厚度
位移
jetting concrete
jetting thickness
displacement
