基于可变模糊集理论的地质灾害危险性评价研究

针对地质灾害影响因素的不确定性、随机性和模糊性的特点，建立了基于可变模糊集理论的地质灾害危险性评价模型。通过确定评价单元指标对各级指标标准区间的相对差异函数和相对隶属度，得到各评价单元的地质灾害危险性等级。最后，通过工程实例验证该评价方法的可行性。

Study on hazard assessment on geologic disasters based on variable fuzzy sets theory

Aiming at the uncertainty, randomness and fuzziness of the impacting factors for geologic disaster, a hazard assessment model for geological disaster based on the Variable fuzzy sets methods is established. The hazard grades of the geological disasters for all the assessed elements are obtained through determining the in-between relative difference functions and relative membership degrees of the assessed indexes against all the grade-index standards. Finally, the feasibility of this assessment method is demonstrated through the actual engineering case concerned.