Quick And Nondestructive Testing And Safety Evaluation System Construction To Hidden Disease Of Highway Tunnel

The development of tunnel construction started late and fast in China。Chinahas become the country who has the most maximum number of tunnel. Because of thetunnel’s special structure, there are many factors in the process of operation of tunneldisease. it’s a serious threat to the tunnel structure safety and traffic safety, detectionand safety evaluation of tunnel structure becomes an important work. But now ourcountry has no unified standard for detection and evaluation of tunnel diseases,basedon this, this article mainly from two aspects of tunnel disease detection and safetyevaluation studies,provide technical support for the preparation of relatedspecifications.The development of tunnel construction started late and fast in China。Chinahas become the country who has the most maximum number of tunnel. Because of thetunnel’s special structure, there are many factors in the process of operation of tunneldisease. it’s a serious threat to the tunnel structure safety and traffic safety, detectionand safety evaluation of tunnel structure becomes an important work. But now ourcountry has no unified standard for detection and evaluation of tunnel diseases,basedon this, this article mainly from two aspects of tunnel disease detection and safetyevaluation studies,provide technical support for the preparation of relatedspecifications.At present, detection of tunnel diseases are mainly the traditional method and thenondestructive detection method, this article mainly uses the ground penetrating radar(GPR) method of non-destructive testing technique, focuses on the detection ofjamming signal screening and crushing methods, methods for judging the anomalouscharacteristics of different diseases, and constructed a set of complete system ofnondestructive testing. In order to obtain the level of safety of the tunnel, this paperuses the concept of multi-level fuzzy comprehensive evaluation model, through modeling in the form of a quantitative analysis was carried out on the security statusof the channel.The paper is divided into five chapters, The first chapter introduces the relatedresearch, content, technical line and acquired innovative findings. The second chaptermainly introduces the basis theoretical of ground-penetrating radar,sums up thedifferent types of concealed diseases of tunnel on the GPR profile, Through themeasured data and based on the finite difference time domain method of forwardmodeling data, the anomaly characteristics of the typical tunnel disease is introduced.Build a tunnel insidious disease non-destructive testing system, makes the detectionprocess standardization and systematization, improve the detection efficiency andaccuracy. The third chapter introduces the theory of safety evaluation at home andabroad, propose the tunnel safety evaluation index selection principle.Introduces theanalytic hierarchy process to ascertain the weight of evaluation index, based on thesheer level fuzzy evaluation model and the multi-level fuzzy comprehensiveevaluation model for tunnel safety comprehensive judgement. The fourth chapter givejinan tunnel engineering example, describes the rapid application of nondestructivetesting and evaluation system of safety evaluation, presente similar inspection work ofthe implementation of the template. The fifth chapter introduces the overallconclusions of the paper and the next step recommendations.In this paper, study certain tunnel of concealed disease nondestructive detectionsystem and security evaluation system.realize standardization and systematization ofthe related work, improve the accuracy of tunnel safety evaluation, provide methodsand techniques support for the similar engineering practice.