工程地质学报2012，Vol.20Issue(2)：204-212,9.
汶川地震重灾区陇南红土坡滑坡稳定性分析与防治对策研究
STABILITY ASSESSMENT AND TREATMENT FOR HONGTUPO LANDSLIDE IN SEVERE DISASTER AREA OF SOUTHERN GANSU INDUCED BY WENCHUAN EARTHQUAKE
摘要
Abstract
The"5·12"Wenchuan earthquake induced many secondary geological disasters. The Hongtupo landslide in southern Gansu took place in large-scale collapse and cracks during the earthquake. If the landslide was moved as a whole, then it would form a dammed lake. It seriously threats the safety of eighty hundreds people in place below the landslide. So,it is very important to adequately understand stability of the landslide and take effective emergency measures. Based on the geological environment where landslide located,a systematic research on characteristics and forming mechanism of the Hongtupo landside at Southern Gansu was achieved. The used methods includedregional geological investigation,measurement of micro physiognomy and failure and geophysical reconnaissance survey. The research results show that this landslide has the characteristics of remarkable classification and partitioning. The key elements of inducing this landslide to be revivable are rainfall,earthquake,river degradation and poor rock and soil mass engineering geological properties. Based on the landslide forming mechanism, using the method of transfer coefficient and so on,the stability states were evaluated by combination of qualitative and quantitative analysis on the conditions of natural state,rainfall and earthquake,respectively. The integrated control measures of prestressed anchor cable frame,blocking dam,draining and protective wall are put forward.关键词
汶川地震/滑坡/稳定性分析/防治对策Key words
Wenchuan earthquake/Landslide/Stability analysis/Control measures分类
天文与地球科学引用本文复制引用
穆鹏,吴玮江,折学森..汶川地震重灾区陇南红土坡滑坡稳定性分析与防治对策研究[J].工程地质学报,2012,20(2):204-212,9.基金项目
交通运输部行业联合科技攻关项目(2008353361420),西部灾害与环境力学教育部重点实验室开放基金项目(Klmwde201004),"5·12"汶川地震中央灾后重建基金项目资助. （2008353361420）
