ABSTRACT

Huge losses, in human lives and property, caused by slopes that fail and are located on populated areas or besides important highways or infrastructure facilities, are producing that a lot of efforts are being conducted to mitigate the risks. In this paper, the expected life-cycle cost is used to assess these risks in order to appraise the economic effectiveness of proposed measures to reduce the impacts of failure consequences. The potential change of slope vulnerability, due to the strong rainfall at the slope region, is considered in terms of the probability that the change on the soil properties triggers the slope failure. The slope failure probability is compared to the acceptable value, which is expressed in terms of the level of failure consequences.