A LARGE-SCALE MODEL TEST SIMULATING A SLOPE FAILURE CAUSED BY A SUDDEN DRAWDOWN OF WATER LEVEL
Sudden drawdown of water level usually causes a slope failure along a river or around a reservoir.Regardless of numerous desk studies on the slope failure mechanism, the associated failure mode is still unclear. This paper presents a large-scale model test simulating the failure of a loose silty soil slope subject to a sudden drawdown of water level. The slope model is 15 m long, 6m high and 5 m wide, and the sloping part has an inclination of 1:1 and a height of 4 m. A water-level control system was developed to simulate the rise and sudden drawdown of water level. The model test revealed that the failure mode associated with the sudden drawdown was a retrogressive multiple rotation slide. The result from a preliminary back analysis on the slope failure was consistent with the observation.
Tony L.T.Zhan G.W.Jia Y.M.Chen
Department of Civil Engineering, Zhejiang University, Hangzhou 310027, P.R.China
国际会议
南京
英文
531-536
2007-04-21（万方平台首次上网日期，不代表论文的发表时间）