Identification of key safety risk factors for tunnel shield construction

doi:10.16265/j.cnki.issn1003-3033.2018.06.024

Abstract

Abstract: In order to examine the key safety risk factors in tunnel shiled construction in China,a systematic method by integrating EFA and SEM was proposed.7 common risk factors were extracted by EFA from 36 questionnaire items,relationships between the safety of tunnel shield construction the 7 public factors were examined by SEM.The established model was validated through hypothesis tests and goodness-of-lit tests.The inuences of public factors on safety in metro construction were characterized by the path coefficients in the model.It was found that the safety is profoundly influenced by risks associated with the launching and arrival of tunnel boring machine(TBM).Provide guidance for improving the safety management of subway construction.

Key words: safety risk, shield tunneling, exploratory factor analysis(EFA), structural equation modeling(SEM), questionnaire

CLC Number:

X948

LI Meng, GONG Yujie, YU Hongliang. Identification of key safety risk factors for tunnel shield construction[J]. China Safety Science Journal, 2018, 28(6): 141-146.

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