基于熵权法-多维云模型的围岩稳定性分类研究

针对围岩稳定性影响因素的不确定性和模糊性问题,在云模型的基础上,结合熵权法建立了考虑多种地质和水文因素的稳定性评价模型,并实现围岩稳定性分类。该方法利用熵权法计算得到分类模型中的各指标的权重,并结合云理论将围岩稳定性各指标分类标准整合到1个考虑多因素的数学模型中。以该方法建立1个5维度云模型,并依托实测围岩样本数据进行计算分类,将其评价结果与实际分类结果对比,结果表明该评估模型在围岩稳定性分类中应用的准确性及易用性。

Study on Classification of Stability of Surrounding Rock Using Entropy Weight Method and Multidimensional Cloud Model

Aiming at the uncertainty and fuzziness of the factors affecting the stability of surrounding rock,based on the cloud model,a stability evaluation model considering various geological and hydrological factors is established based on the entropy weight method,and the classification of surrounding rock stability is realized.The method uses the entropy weight method to calculate the weights of each index in the classification model,and combines the cloud theory and the classification criteria of each factor of rock stability into a mathematical model.This method is used to establish a 5-dimensional cloud model,and the classification data of the surrounding rock samples are calculated and compared.The actual classification results of the evaluation results are compared.The results show the accuracy and ease of application of the evaluation model in the classification of surrounding rock stability.