Research On Road Tunnel Safety Assessment Based On Interval Mathematics

Respect degree of highway tunnel construction security is higher than the operation highway tunnel security takes the insufficiency.In fact every year traffic safety accident extremely its number which occurs in the tunnel,if the majority security accident takes the essential measure is completely may avoid having or reducing the loss.Therefore carries on the highway tunnel operation security is essential also has the vital significance.The highway tunnel has the traffic capacity limit,internal spatial seal,lacks the natural natural lighting,ventilates is limited monotonously,the driving environment and so on the spatial structure characteristics,when has the traffic accident has the disaster to expand the speed quick,difficulty situations and so on contacts and escapes.Highway in operation period occurs are many the significant tunnel security accident,has created the huge economic loss and the serious social influence.On the other hand but,the highway tunnel after operation period of time,in its lining work structure,the adjacent formation stability,the tunnel the accessory structure and so on has a series of deteriorated function,causes its operation security environment to appear certain hidden danger,therefore carries out the highway tunnel operation safety evaluation,for the highway tunnel travel comfortable,provides the safeguard safely.This article based on has to the highway tunnel operation safety evaluation fundamental research in,the analysis highway tunnel operation safe influence factor,constructs the tunnel operation safety evaluation system,uses the sector mathematics theory to the highway operation safety evaluation,obtains the following several conclusions:(1)Highway tunnel operation system is one which by the driver and passenger,the vehicles and the tunnel sets up together becomes “the human-machine-environment”the complex system,its operation safety performance was decided together many essential factors,mainly includes the operation management,the tunnel structure health,the mechanical and electrical control,the fire protection,the transportation and so on several aspects.Any link has the problem possibly to create the traffic accident the occurrence.(2)Various factors affecting the safe operation of expressway tunnel complex,using a theory of semi-empirical,quantitative and qualitative safety comprehensive evaluation index system of highway tunnel operation.Safety evaluation system of highway tunnel operation follow the tightness,the principle of concise and focused.(3)Because of the highway tunnel safety assessment the assessment have greater subjectivity and uncertainty of test data,and constant evaluation has some limitations,interval mathematics assessment method is based on interval-valued data,closer to the practice of engineering.(4)Carries on the operation security sector appraisal based on the sector mathematics theory and the level synthesis method to some highway tunnel,uses the value law and the sector method appraisal result is 78.925,when consideration sector most value its predicted value is(0.64,0.71),the corresponding security rating table may know,this highway tunnel operation management security condition for intermediate and on,indicates this road basically to be able the security operation,but certain aspects have in certain degree the security hidden danger,needs to have pointed makes the corresponding safety work measure.