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RISK ASSESSMENT FOR THE SAFE GRADE OF DEEP EXCAVATION (2009)
This paper embarks from risk idea, obtains safety factors of excavation and their percentages from investigation results of excavation accidents, the safe grade of excavation is designed and analyzed. First, the present developing situation, possibly existed risks in excavation projects and the state of present excavation grade division in shanghai area is briefly introduced. Reasons of accidents are obtained from analyzing a large number of excavation accidents. Later, fuzzy synthetic evaluation method is introduced and two levels of judgment on excavation safety are carried on. Finally, the paper takes the example of shanghai international passenger transport centre, the results conform to the actual situation.
Geotechnical Aspects of Underground Construction in Soft Ground – Ng, Huang & Liu (eds), © 2009 Taylor & Francis Group, London
Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai, P.R. China