Coupling Evaluation Method of the Construction Risk for Subway Deep Foundation Pit

doi:10.12068/j.issn.1005-3026.2021.08.013

Abstract

Abstract: A set of index system and method suitable for risk assessment of subway deep foundation pit construction was developed to analyze and judge the risk level of a project， and to guide and improve the risk management of site construction. Firstly， the risk evaluation system with 29 indexes of subway deep foundation pit construction was established according to FTA， 4M1E system safety theory and literature analysis. Secondly， the interaction between risk factors was analyzed with the risk coupling theory， and the construction risk evaluation model is established based on C-OWA operator and interaction matrix method. As a case， the construction risk level of a subway deep foundation pit construction project was calculated by the evaluation index system and method proposed， and the results show that the risk level was medium， which accords with the actual situation of construction project， thus verifying the feasibility of the method above mentioned.

Key words: subway deep foundation pit; risk coupling theory; interaction matrix; C-OWA operator; accident tree analysis

CLC Number:

TU714

WANG Qian-kun， KANG Xian-wei， ZHU Ke. Coupling Evaluation Method of the Construction Risk for Subway Deep Foundation Pit[J]. Journal of Northeastern University(Natural Science), 2021, 42(8): 1152-1158.

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