Risk identification of subway tunnel shield construction based on WBS-RBS method
by Qiang You; Zhiwei Zhang; Haitao Wang; Mingyang Xu
International Journal of Critical Infrastructures (IJCIS), Vol. 19, No. 3, 2023

Abstract: The shield construction technology has been widely used with the vigorous development of subway construction. The safety risk identification about the shield tunnelling construction of Shenzhen Metro was carried out. Firstly, the work breakdown structure (WBS) was used to decompose the construction process in stages, then the risk factors were decomposed into different factor units by risk breakdown structure (RBS), then the WBS-RBS matrix was constructed to identify a number of risk factors. Meanwhile, based on the questionnaire survey method, the reliability and validity of the results were tested. Finally, the principal component analysis method was used to extract the key risk factors, so that the number of indicators was greatly reduced, which provided a basis for constructing the risk evaluation index system.

Online publication date: Sun, 14-May-2023

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