摘要
在考虑岩土工程的随机性和模糊性的基础上,将模糊优选理论应用于滑坡位移曲线模型的选取,提出了滑坡位移曲线的模糊相似优选方法.选取若干典型滑坡位移模型作为参选曲线,利用实测数据对所选模型进行拟合解算,求得各模型参数;然后选取若干特征点构成参选曲线指标特征值向量,取相应的观测值作为标准相似曲线的指标特征值向量,求出参选曲线与实测曲线相似的相对隶属度向量,并选其中相对隶属度最大的参选曲线模型为最佳的边坡位移曲线模型.对参选曲线指标相对隶属度和指标权重的确定提出了新的见解,并给出了相应的计算公式.
Based on consideration of randomness and fuzziness of rock and soil engineering, the theory of fuzzy optimization is applied to the selection of landslide displacement model. A fuzzy optimal selection method of similar landslide displacement curves is put forward. Some typical landslide displacement models are chosen as so-called selected-curves, and the models are solved with measured data to obtain the fitted parameters of the models. Then some characteristic points are selected as the index eigenvalue vector of the selected-curves and the corresponding measurements as the index eigenvalue vector of the standard similar curves. The authors have also solved the vector of the relative membership degree that the selected-curves are similar to the actual curve, and chosen the selected-curve model of which the relative membership degree is the maximal as the optimal model of the landslide displacement curve. A new opinion on determination of relative membership degree and weight of index of selected-curves is advanced, and the corresponding formulas are given.
出处
《大连理工大学学报》
EI
CAS
CSCD
北大核心
2004年第3期442-444,共3页
Journal of Dalian University of Technology
