灾害学2011,Vol.26Issue(4):63-67,5.
汶川地震重灾区陇南寨子崖危岩体稳定性分析与防治对策
Stability Assessment and Treatment of Dangerous Rock Masses at Zhaiziya in Severe Disaster Area of Wenchuan Earthquake in Southern Gansu
摘要
Abstract
Wenchuan earthquake has induced a great number of secondary geological disasters. A large-scale collapse of rock masses took place at Zhaiziya in southern Gansu in the earthquake and collapses continued after the earthquake which seriously threaten the safety of hundreds of people in the settlement area of post-disaster reconstruction. So, it is very important to adequately understand stability of the dangerous rock masses and take effective emergency measures. Based on the study of geological background conditions and the factors inducing the failure of dangerous rock masses, the distribution and morphological characteristics of Zhaiziya dangerous rock masses in southern Cansu are analyzed and the stabilities of several main dangerous rock masses are qualitatively and quantitatively evaluated by analysis of engineering geology and by use of limit equilibrium method. The results of the study show that all of the dangerous rock masses are instable, therefore, the control measures on them must be taken. The joint controlling measures as small-scale earthwork, anchorage and SNS type initiative protective net are put forward.关键词
汶川地震/稳定性分析/治理对策/陇南/寨子崖危岩体Key words
Wenchuan earthquake/stability analysis/control measures/southern Cansu/dangerous rock masses at Zhaiziya分类
天文与地球科学引用本文复制引用
穆鹏,吴玮江..汶川地震重灾区陇南寨子崖危岩体稳定性分析与防治对策[J].灾害学,2011,26(4):63-67,5.基金项目
交通运输部行业联合科技攻关项目 ()
西部灾害与环境力学教育部重点实验室开放基金项目(klmwd201004) (klmwd201004)
"5·12"汶川地震中央灾后重建基金项目 ()