摘要
四川某矿山开采边坡迄今已有30余年,随采区规模的逐渐扩大,在矿区南坡构成一典型的顺层开挖边坡,因矿层中夹有不同数量的软弱夹层,在边坡前缘破坏坡角、并加上降雨及爆破振动影响,时常发生颁层滑坡,不仅给矿山人民生命财产带来严重危害,而且也严重制约矿山的正常发展。通过对典型开挖边坡所在部位的工程地质条件凋查,在确定影响边坡稳定的主要控制因素和边界条件的基础上。考虑四种工况条件下的稳定性分析和评价,为矿山下一步施工提出了较为合理的开挖方案。
There are 30 years for mine excavating at the mining area of Sichuan Province. Along with mining area expanding, a typical bedding slope is formed in the south mining region. Because weak interbeds in ore beds,in combination with the slope-toe failure and continuous rainfall and blasting vibration,the slope slides frequently. Based on the investigation of exploratory boring and mechanical testing of slip layer clay, the slope stability is analyzed under 4 different conditions. The reasonable excavation scheme is suggested for next construction procedure.
出处
《山地学报》
CSCD
2004年第2期224-229,共6页
Mountain Research
关键词
矿山边坡
顺层
失稳机理
稳定性
mine slope
bedding
sliding mechanism
stability
