The Application Of Safety System Engineering In Tunnel Construction

Constructing condition of tunnel engineering is very complicated ,and the variable factor is much more ,and the past experiencing safety management are not adapted to requirement of modern management ,so the modern science management method -system safety engineering-come into being .This thesis dissertate it from the concept of system safety engineering ,emphasized particularly on system safety analysis ,system safety appraise and safety decision-making . While dissertating system safety analysis method ,emphasizejd particularly on FTA .FTA is the method basing on occurred the top matter ,analyzing from top to below ,processing Boolean operation ,and in the last find out the mostly reason of faulty .While dissertating system safety appraise, emphasized particularly on DAFEN method and fuzzy integrated appraise method .DAFEN method just is used in sub-system and aimed at safety in some environment .fuzzy integrated appraise method process appraise to system safety using the knowledge of fuzzy mathematic which may be a great system or little system .While dissertating s safety decision-making , emphasized particularly on AHP which possess of the relative importance degree basing on experience of expert ,constituting judgment matrix .calculating importance degree of every project .processing project-electing and decision-making.The ultimate aim of method dissertating is put into use Basing on experience in engineering ,tunnel engineering is one of complicated geological condition among engineering ,so it is essential to use system safety engineering on controlling safety of tunnel .In application of tunnel safety engineering .We process safety analysis using FTA ,process system integrated appraise using fuzzy integrated appraise .process safety decision-making using AHP ,and obtain favorable effect.System safety engineering is rising science .we should extend it .it is the developmental direction and target of safety management.