摘要
针对抚顺西露天矿北帮边坡水文地质特征,对水压作用下北帮边坡变形破坏模式和边坡岩体水压动态规律进行了实际勘测及模拟分析.研究表明,边坡岩体的深部水压相当于静水压力的70%,坡表以下50m范围内的岩体渗透性明显高于深部,疏干减压的效果较好,为疏干工程设计提供了科学依据.最后对采取的疏干减压工程效果和实际边坡变形减缓效果进行了评价.
By investigating the hydrogeological characteristic in north side slope of Fushun Open Pit, the model and the feature of its deformation and failure under the act of hydraulic pressure are practically measured and analyzed, as well as the rock permeability and the hydraulic pressure dynamic law. The investigate shows that the hydraulic pressure in depth of slide rockmasses equals 70% of static hydraulic pressure and that rockmass permeability within 50 m under slide surface is obviously higher than that in depth. The effect of dewatering is good and it provides technical guidance for dewatering engineering design. At last some practice effects for dewatering and retardation of slope deformation are evaluated.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2003年第6期573-577,共5页
Journal of China Coal Society
基金
国家自然科学基金(50204003)
煤炭科学基金(97采20920)
三峡大学防灾减灾实验室开放基金(2002ZS03)项目
关键词
露天矿
边坡变形
水压
倾倒滑移体
open pit
slope deformation
hydraulic pressure
topple-displacement mass