摘要
大足县谭家湾危岩带位于北山石刻风景区中心部位,全长210m,共发育15个危岩体,包括滑移式、倾倒式、坠落式三种破坏模式。文章对谭家湾危岩带的成因、影响因素、破坏机制等进行了详细的分析。根据危岩体范围、规模、危岩破坏模式及已经出现的变形破坏迹象,采用地质类比法对各危岩体的稳定性进行宏观判断和定性分析。在此基础上,分别按滑移、倾倒、坠落三种方式对各危岩体进行了稳定性计算。并按各危体破坏模式和稳定性状况,提出了包括锚固、支撑、排水、清除等综合治理措施设计。
The Tanjiawan dangerous rocks are located in the center of the Beishan scenic area in Dazu rock carvings. With overall 210m long, there are 15 dangerous rocks belonging to slide type, topple type or fall type respectively. This paper analyzes the genesis, influence factors, and failure mechanisms of the Tangjiawan dangerous rocks in detail. Considering their boundaries, dimensions, failure models and failure characteristics, the stability states of the dangerous rocks are determined from macroscopic perspective and analyzed qualitatively by using geological analogism method. On basis of the results, this paper then calculates the coefficient of stability of each dangerous rock. At the end, this paper proposes the comprehensive control scheme for the dangerous rocks, including anchoring, supporting, draining, clearing, and so on.
出处
《地下空间与工程学报》
CSCD
2008年第6期1161-1168,共8页
Chinese Journal of Underground Space and Engineering
关键词
危岩带
特征
防治措施
dangerous rocks
deformation and failure features
control scheme
