基于Choquet模糊积分的钻孔灌注桩施工风险评价

Risk evaluation of bored pile construction based on Choquet fuzzy integral

针对多指标且指标间具有模糊性的钻孔灌注桩施工安全风险评价问题,基于Choquet模糊积分,利用层次分析法确定各层和各指标的权重并计算出模糊测度。利用Choquet模糊积分算子对指标的评价值进行聚合,建立了桥梁工程钻孔灌注桩的施工风险评价模型。应用该模型对广西荔浦市东环大桥工程钻孔灌注桩的部分施工的安全风险进行了评价,结果可为桩基施工工作的决策及实践提供参考。

Based on choquet fuzzy integral,we uses analytic hierarchy process to determine the weight of each layer and index and calculate the fuzzy measure in response to the construction safety risk assessment of bored pile with multiple indicators and fuzziness between indicators.The construction risk evaluation model of bored pile in bridge engineering is established by aggregating the evaluation value of the index with Choquet fuzzy integral operator.This model is applied to evaluate the safety risk of some construction sections of the bored pile of the East Ring Bridge Project in Lipu City,Guangxi Province,the results can provide a reference for the decision-making and practice of pile foundation construction.