Structure Of Mining Tunnel Detection And Evaluation Of The Service Performance

With the increase of traffic demand in China, a large increase in trafficinfrastructure construction, in recent years the transportation infrastructure graduallyimproved， built a large number of tunnel in the southwest mountain area, thesetunnels built after the operation, through the change of physical and chemicalenvironment, there is some bad changes in the lining structures, and got diseasesof various structure, influence the safety operation of the tunnel.If we ignorethe service condition of structural disease of tunnel structure, with the development ofdisease, have a significant impact on the security and economy will be on the operationof the tunnel. So we must use the structure of the tunnel detection and get the currentstate, then we need to consider how we can select the strategy, can effectivelyimprove the safety and service life of the tunnel. But the present situation researchon service properties of mine tunnel is limited, can’t satisfy the need of practice.According to the tunnel structure disease mines are researched the main researchachievements are:1) Through the tunnel structure detection means and tools of different structureshave been detected on operational mine tunnel, Get all kinds of structural disease minetunnel appears, the main factors affecting the performance of the tunnelstructure for lining crack, seepage Water Leakage structure, lining crack, structuraldefects and the lining material aging.2) Research on the service performance of the existing tunnel, and according to thegiven specifications and on the basis of previous research for theperformance determination level, the mine tunnel service performance level to level four.The five common diseases of the structure characteristics, then has carried onthe quantitative or qualitative classification criteria, given the five influencingfactors and their sub factors.3) The advantages and disadvantages of the fuzzy comprehensiveevaluation method is analyzed, And the combination of decision classification miningmethod tunnel diseases, using the grey fuzzy comprehensive evaluation method toevaluate service performance, gives the calculating formula and method to calculateweight five influence factors and sub factors， and using the fuzzymathematics theory evaluation of the influence factors, establishment of miningtunnel service properties of grey fuzzy comprehensive evaluation model. 4) According to the structure of Jiqing test results and the evaluation model onservice properties of auspicious tunnel evaluation, the evaluation results and the actualsituation is consistent, indicating that the evaluation model is reliable.