Project Safety Risk Analysis Based on Fault Tree Method
Yang Tai-hua · Journal of systems management · 2009
All risk events usually show the complex logic relation to the factors caused by the deep foundation excavation construction.This paper resolved the fault reasons by layer upon layer based on the systematology and distinguished the safety risk of the deep foundation construction.It is realized that the fault probability caused by the deep foundation excavation is undefined,and this paper regards the probability of the basic event as fuzzy datum,and illustrates the whole analysis process of the safety risk of deep foundation construction based on the fault tree logic structure of intermediate and top events.The applied example shows that it is possible and applicable to using the fuzzy fault tree method to analyze the safety risk of the deep foundation construction in Electric Power Tunnel Project under Shanghai Huangpu River.