Risk assessment of deep foundation pit construction in metro stations based on G-COWA
With the continuous advancement of urbanization,metro projects have become a primary solution for central cities to alleviate traffic congestion.As the depth of foundation pits increases,the risks associated with metro construction also escalate.In light of these challenges,this article establishes a deep foundation pit construction risk evaluation model to assess the safety of metro station foundation pit construction projects.The aim of this is to clarify the construction risk levels at each stage of deep foundation pit construction projects.Firstly,an evaluation index system based on the five elements of"personnel,management,technology,materials,and environment"is established by integrating specific engineering examples and the characteristics of deep foundation pit construction.Secondly,a deep foundation pit construction risk evaluation model based on G-COWA is constructed by combining the grey clustering analysis and fuzzy comprehensive evaluation to effectively address uncertainties.Finally,the model is applied to the deep foundation pit project of the Zhangzhou(Jiaomei)extension of Xiamen metro line 6.The construction risk level is determined to be"medium",which validates the feasibility and reasonableness of the evaluation model.This study serves as a reference for the construction risk evaluation of similar deep foundation pit projects.
metroG-COWAmetro foundation pitgrey clustering analysisfuzzy comprehensive evaluationrisk assessment
万方数据
维普
