Geological Hazarde Valuation System Of Xiluodu Power Assisted Highway

Xiluodu Hydropower Station is located between " the north-south tectonic beltof Sichuan and Yunnan " in southwestern of famous Sichuan Province and " Settlement of the new China,"in Sichuan Basin,with the strong role of intributaries'cut of the Jinsha River,deep valley, valley slope steep, the two sides'cliffs are widely distributed, leading to falling rock avalanches along the highway, tall and straight mountains, deep valley, steep valley slope, the cliffs are widely distributed between the two sides, leading to falling rock avalanches, collapsing landslide, mud-rock flowing and other geological disasters which are well developed along the highway.In particular, road cutting slopes which are new excavation, due to influence of unloading and stress re-distribution, leading to slope with deformation and failure, and give the latter part of weathering conditions which have created for a serious security risk to the line.In this paper, we discuss geological disasters of assisted highway of XiLuoDu hydropower station, through on-site geological survey, have been leded by Professor Bai Zhiyong Group, in 2009 from May to June, made a detailed investigation of assisted highway of XiLuoDu hydropower station of geological disasters, we made analysis of indicators through which its natural and geographical conditions, engineering geological conditions, geological structure characteristics, hydrological conditions, the main physical and mechanical properties, site extracted factor for each disease hazard assessment work, set up a composite index based on AHP Evaluation system,evaluate severityof the disaster itself and the level of danger of the highway,put forward class of virous hazard sits and targeted prevention, On this basis, to the survey findings,we establish a " dynamic management system for geologic hazard databases for highway " and laid a foundation for the future development of dynamic management of disasters。...