【摘要】 针对当前隧道施工风险评估存在随机性和模糊性的问题,基于黄金分割法、熵权法和云模型理论,构建了隧道施工风险评估的改进云模型方法,该方法首先利用黄金分割法计算隧道施工风险评估云模型的数字特征值,再使用熵权法确定风险评估的指标权重,最后通过云模型计算综合评估结果,得到隧道施工风险等级。将该模型运用于怀阳高速公路马咀隧道施工风险评估中,其结果与常规的模糊综合评判法评估结果一致,验证了所建隧道施工采用改进云模型方法进行风险评估的合理可行性。更多还原

【Abstract】 Aiming at the randomness and fuzziness of tunnel construction risk assessment,based on golden section method,entropy weight method and cloud model theory,an improved cloud model method for tunnel construction risk assessment was constructed.This method first used golden section method to calculate the digital eigenvalue of cloud model for tunnel construction risk assessment,and then used entropy.The weight method determined the index weight of the risk assessment,and finally calculated the comprehensive evaluation results through the cloud model to obtain the risk level of tunnel construction.This model was applied to the construction risk assessment of Mazui tunnel of Huaiyang expressway.The result was consistent with that of the conventional fuzzy comprehensive evaluation method,which shows that the improved cloud model method is reasonable and feasible.This provides a feasible new method for risk assessment of tunnel construction.更多还原