ABSTRACT
ABSTRACT: During the 1999 Chi-Chi earthquake, extensive slope failures were triggered by the earthquake in central Taiwan. Among those, a large-scale dip-slope slide in Tsaoling occurred, which involved mass movement of about 120 million cubic meters. Four catastrophic dip-slope rockslide events in history in Tsaoling are presented, and the geological and geomorphologic conditions and possible causes of the Tsaoling landslide are discussed in this paper. A pseudo-static stability analysis of the Tsaoling landslide caused by the 1999 Chi-Chi earthquake was conducted to examine the effects of the vertical ground acceleration.
