抚顺西露天矿边坡水压分布特征及疏干减压工程实践  

Features of slope hydraulic pressure distribution and practice for dewatering in Fushun Open Pit

作　　者：杨天鸿[1] 郑宏[1] 张永彬[2] 芮勇勤[3] 唐春安[2] 申力[4] 

机构地区：[1]三峡大学土木与水电学院,湖北宜昌443002 [2]东北大学资源与土木工程学院,辽宁沈阳110004 [3]长沙交通学院道路与桥梁工程系,湖南长沙410076 [4]煤炭科学研究总院抚顺分院,辽宁抚顺113001

出　　处：《煤炭学报》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

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 hydrogeological 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.

关 键 词：露天矿 边坡变形 水压 倾倒滑移体 

分 类 号：TD824.7[矿业工程—煤矿开采]