摘要
通过对软岩巷道工程特征的研究,提出用定量指标——稳定的围岩松动圈厚度值Lp(Lp≥150 cm )来判定“软岩巷道工程”的方法.以此为基础,进而分析了围岩松动圈碎胀、水胀及复合等变形机理,提出对大松动圈碎胀变形Ⅳ,Ⅴ类软岩采用锚喷网支护,Ⅵ类软岩采用联合支护,对水胀变形软岩首先采用综合防治水措施的新思路,并被大量的工程证明是正确的.
The engineering features of soft rock roadway are discussed. The quantitative way of assessing soft rock roadway by the thickness L p( L p≥150cm) of broken zone is put forward. Furthermore, the deformation mechanism of bulking, dwelling and so on is analyzed. It is believed that for Ⅳ,Ⅴ bulking soft rock bolting and shotcreting with wire mesh should be used, for Ⅵ combined supporting, and for dwelling soft rock water ought to be treated firstly. The reliability has been confirmed by industrial tests.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
1999年第6期560-564,共5页
Journal of China University of Mining & Technology
基金
煤炭科学基金
关键词
软岩
松动圈
控制技术
变形机理
巷道支护
soft rock,broken rock zone,bulking deformation, dwelling deformation, control technique