Abstract:An integrated index-weight determination method (I² WDM), which is based on the analyses about the influence indexes of slope stability and summary of many kinds of index-weight determination methods, was proposed to solve the difficulties of index-weight determination using comprehensive evaluation methods to evaluate slope stability. The authors put forward a selective strategy of many index-weight determination methods and a computer program structure of I² WDM which is simple, flexible and integrated, and makes index-weight determination in comprehensive evaluations more reasonable. At last, an example was applied to indicate that I² WDM is effective.

Key words: slope stability   comprehensive evaluation   integrated    index-weight