复杂应力条件下软岩巷道支护的FLAC模拟研究  

FLAC simulation research of soft rock roadway support under the condition of complicated stress

作　　者：万红超 吴长俊 

机构地区：[1]陕西彬长大佛寺矿业有限公司,陕西咸阳713500 [2]陕西彬长胡家河矿业有限公司,陕西咸阳713600

出　　处：《山西建筑》2012年第17期107-108,共2页Shanxi Architecture

摘　　要：针对西北某煤矿2号巷道支护工程,提出了支护方案,并进行了FLAC数值模拟研究,研究表明,导致该巷道出现顶板下沉量大、底板强烈膨胀、两帮位移大的变形特征的主要原因是巷道埋深大、采空区矿山压力显现显著,进而确定了锚注锚网联合支护作为2号巷道支护方案,监测结果表明,该支护方案合理,效果良好。In light of the northwest coal mine No. 2 roadway support engineering, the paper puts forward support scheme, and carries out FLAC numerical simulation research. Research shows that deep-lying roadway and distinct mined-out pressure lead to a series of problems, such as large subsidence of the roadway roof, strong expansion of bottom plate, and large two-side displacement. In the end, it determines anchor grou- ting support as No. 2 roadway support scheme. Supervision results show that the support scheme is rational and effective.

关 键 词：复杂应力 软岩巷道 支护 FLAC 

分 类 号：U455.72[建筑科学—桥梁与隧道工程]