Reasoning Mechanism and Its Model of Program Decision Making System Based on Vague Set

• 1、College of Management and Economics Tianjin University Tianjin 300072

Abstract：Tunnel structure is affected by adverse geological conditions, changes in the external environment and other uncertain factors, there will be greater risks in its construction period, which may lead to the loss of personnel and property. In order to solve the problem of single sensor in the process of monitoring accuracy and insufficient monitoring content, multi-sensor array is used to monitor the technical parameters in the process of tunnel construction. Using vague set of true and false membership degree and unknown degree, two problems including fuzziness and uncertainty in tunnel risk assessment are explored, and the embedded algorithm of vague set fuzzy decision is adopted The decision rules are constructed, and combined with the actual decision problems of tunnel engineering, the analysis function of decision system is optimized and enhanced, thus the decision information model based on vague set is established. Taking a tunnel project as an example, it is found that the model can analyze the current risk situation of the tunnel project area. According to the risk situation, the tunnel project area is divided into three risk levels: good, uncertain and potential risks. According to different risk levels, risk managers should take different countermeasures.

Keywords： Vague Set Multi-sensor Fusion Tunnel Engineering Management and Control Risk Assessment