河北研山铁矿东帮边坡稳定性分析与治理措施

Stability Analysis and Treatment Countermeasures of the East Slope of Yanshan Iron Mine in Hebei Province

以研山铁矿东帮N_(26)~#线剖面岩质边坡为例,在工程地质勘查的基础上,构建了边坡的力学分析模型,结合前期获取的岩体力学参数,对自然与疏干排水作用下的边坡稳定性进行了分析。研究表明:边坡角为33°时,自然状态下N_(26)~#线剖面整体与局部均无法保持稳定状态。在上述分析的基础上,结合矿山实际情况,对该矿东帮边坡治理措施(边坡放缓、疏干排水)进行了分析,供相关研究参考。

Taking the rock slope of N26# line section in the east side of Yanshan Iron Mine as the study example, based on the engineering geological exploration results, the mechanical analysis model of the slope is established. The stability of the slope under natural and dewatering drainage is analyzed by combing with the rock mechanics parameters obtained in the previous period. The study results show that when the slope angle is 33° ,under the natural conditions,the whole and local part of N26# line profile can not maintain stable state. Based on the above discussion results and the actual situation of the mine,treat- ment countermasures （cutting slope and unwatering drainage） of the slope is analyed, so as to provide reliable reference for the later study. Keywords Slope stability, Rock mechanics parameters,Mechanics analysis model, Cutting slope, Unwatering drainage, Slope angle