Study On Pingliang Tianshui Mountain Tunnel Construction Risk Management

Out to tianshui highway mountain tunnel for tianshui to out across the long tunnel,the tunnel by complicated geological conditions,extremely easy to cause rockfall,landslide,collapse,water gushing,slide mountain geological hazards such as diversity,in the event of accident,caused by the harm is immeasurable.,therefore,must carry on the risk prevention and pretreatment,this paper takes out to tianshui highway mountain tunnel project as the foundation,in view of the geological structure of the tunnel in barrier,put forward a set of targeted tunnel construction risk assessment methods,guiding and realistic significance.In this paper,the research results of tunnel construction under complex geological conditions at home and abroad have been extensively reviewed,from which the advanced risk management methods of tunnel construction have been summarized and refined.The author,through the out to tianshui highway mountain tunnel project site survey and investigation,for of out-tianshui highway mountain tunnel engineering concrete problems,puts forward the relevant treatment measures of risk.Highway tunnel construction risk factors were analyzed at first,then the risk assessment and method of highway tunnel construction to make the elaboration and analysis,on this basis of out to tianshui highway mountain tunnel engineering construction risk has made the analysis and research from different angles,and,finally,put forward out to tianshui highway tunnel engineering risk control countermeasures.The topic selection of the paper has some innovation.This paper start from the perspective of risk management,based on out to tianshui highway mountain tunnel,focus on combining risk causes of the tunnel construction,set up of out to tianshui highway mountain tunnel construction risk evaluation index system,the reference to the domestic developed regions in tunnel engineering project risk assessment process,combination of out to the actual situation of tianshui mountain highway tunnel,puts forward such tunnel construction risk assessment rating standards and basic procedures.Out to tianshui mountain highway tunnel as an example,according to the established risk assessment system,using the field research method,the comprehensive plan as a whole under the premise of risk rating standard,put forward out key risk control points to tianshui highway mountain tunnel,through effective prevention measures,to avoid the occurrence of major accidents.The research of this subject will provide a good reference for the prevention of the construction risks of such tunnels,and have strong research value.