摘要
大断面、软岩的支护是井巷工程施工的难题。通过对振兴二矿-280m泵房其所处的地质条件、围岩类别、支护困难原因进行分析,确定利用锚网喷、锚索、围岩注浆等主动支护和以封闭刚性36U型支架+底板混凝土浇筑的被动支护的联合协调作用,利用围岩原有应力平衡达到支护目的,本支护方案的成功为类似工程施工积累了经验。
By analyzing the geologic conditions, surrounding rock classification and the causes of support difficulties in --280 pump station of Zhenxing No. 2 Colliery, the author proposes the coordination of active supports with shotcrete and bolting wire--mesh--anchor, surrounding rock grouting, and passive supports with closed 36U--steel support and floor concreting, which achieves the support purpose by the balance of the original stress of surrounding rock.
出处
《江西煤炭科技》
2015年第2期35-37,共3页
Jiangxi Coal Science & Technology
