CASE HISTORY OF A REACTIVATION OF A LANDSLIDE DUE TO IRRIGATION ON UNSATURATED SOIL
An engineering investigation was conducted to determine mitigation methods for stabilizing an ancient landslide in Colorado, USA. A 0.71-km2 golf course was constructed in 1973 on the ancient landslide, which was located in a semi-arid environment along the Front Range of the Rocky Mountains. As a result of the irrigation of the golf course, the landslide was reactivated in 1993, and additional movement occurred after a period of high precipitation in 1995. Seepage analyses were conducted to simulate long-term ground water conditions at the golf course. The results of the seepage analyses indicated that the increased infiltration rate, over the more than 20 year presence of the golf course, caused the increase in ground water elevations responsible for the reaction of the landslide. Slope stability analyses were conducted to simulate progressive slope movements observed in the field. This paper discusses the observations of the slope movement, the analyses that were conducted, and proposed remediation methods.
Kuo-chieh Chao Daniel D.Overton John D.Nelson
Tetra Tech, Inc., U.S.A. Tetra Tech, Inc., U.S.A.;Colorado State University, U.S.A.
国际会议
南京
英文
619-624
2007-04-21（万方平台首次上网日期，不代表论文的发表时间）