Risk Assessment Based on Fuzzy Fault Tree for Waterproofing Accidents in Deep Excavation

Abstract:

In recent years accidents in deep excavation have frequently occurred, which brought a heavy loss in lives and property. The past cases of accident indicated water was a key one of accident resource. In this paper, water-control and its influencing factors in deep excavation were researched from sealing, draining and dewatering, and then fault tree of waterproofing was set up. The probability of waterproofing failure was calculated using Fuzzy Mathematics, and importance degrees for basic events were analyzed to find the events which would lead to the occurrence of the top event. The analysis can be used to make safety measures.

• Periodical: Advanced Materials Research (Volume 739)
• Pages: 732-736
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.739.732
• Online since: August 2013
• Authors: Jing Chun Wang, Jing Jing Liu, Wei Hong Hou
• Keywords: Accident, Deep Excavation, Dewatering, Fault Tree, Fuzzy Mathematics, Risk Assessment, Waterproofing

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