The Risk Management Method Of Tunnel Engineering Based On Vague Set Fuzzy Decision Model

In the construction stage of tunnel engineering,because of the indeterminacy of geological setting and the complicacy of the construction process,there are significant risks in the tunnel construction stage,which may lead to loss of personnel and property.Therefore,in the tunnel construction stage,the project manager needs to apply risk management to the project and evaluate the risks that the project may face to reduce the probability of risk occurrence.With the development of sensor technology,sensor technology can replace the manual monitoring work in the past,which helps to improve the work efficiency.In order to solve the problem of the accuracy of the single sensor and the lack of monitoring content in the monitoring process,the multi-sensor array is used to monitor the technical parameters of the tunnel construction process.Then,a Vague Set based tunnel engineering risk management decision method is proposed.Firstly,the collected information is structured by OLAP method,and the risks in the tunnel construction process are monitored from three dimensions:technical parameters,time and space.By constructing the embedded algorithm of vague set fuzzy decision,the decision rules are constructed,and the decision problems are combined with the monitoring process of tunnel engineering,so that the analysis function of decision system is stronger.A case analysis is carried out,and some suggestions are put forward for the risk management of tunnel engineering based on the analysis results.