某水电站库区一大型滑坡的形成机制与环境影响评价评价-水土保持研究.PDF

13 6 Vol. 13 No . 6 2006 12 Research of Soil and Water Conservation Dec. , 2006 * 1 2 陈万业 , 董兰凤 ( 1. , 61005 ; 2. , 730000) : , , , , , : ; ; ; : P642. 22 :A : 1005-340 ( 2006) 06-0282-03 The Research of Formation Mechanism and Stability on a Landslide i n a Hydropower Stati on 1 2 CHEN Wan-ye , DONG Lan-feng ( 1. Cheng d u Univ ers ity of Technology , Cheng du 61005 , Ch ina; 2. L anz hou Univ er sity , L anz hou 730000, Ch ina) Abstract: By geochronicle methods and view points, the format ion mechanism and the evolutionary process of the VII slide in the Gongbo- Gorge hydropower station w as researched, through investigating and systematic analyzing the boundary condit ions, in- terior structure characteristics and existing surroundings in details. By t his, the stability of different sections in the VII slide w as calculated in various conditions, also its main destructive pattern and possible social harm in the future w as forecasted. Key words: surroundings of slide; evolutionary process; formation mechanism; stabilit y calculating and dest ruct ion forecasting , 1.5 km , , , , 40~ 60 m ; , 2 100 m , , , , 70 m; 2 100