China Safety Science Journal

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Statistical Analysis on Safety Accidents of Tunnel Construction from 2004 to 2008 in China

  

  • Online:2010-01-20 Published:2010-01-25

Abstract: To grasp the rules of tunnel construction accidents in China, tunnel construction accidents from 2004 to 2008 are statistically analyzed with histogram method and accident trends chart method. Statistical characteristics of those accidents, such as developing trend and time distribution of accidents number and deaths number, accident number of different accidents, the percentage of each accident type, region distribution, and accident grade distribution, are obtained. The statistical characteristics take on the following rules: Accident number and death number have a tendency of decline;Collapse, object strikes, flooding and rib roof fall are the main accident types. Among them, collapse is the first hazard in tunnel construction;Accidents mainly concentrate on central and western regions, and few on the eastern region;Most of the accidents are large accidents and malignant accidents, major and particular major accidents are few. Finally, according to the rules of tunnel construction accidents, safety management countermeasures and suggestions are put forward.

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