Research On Intelligent Evaluation Method Of Hydraulic Tunnel Surrounding Rock Grade Based On Fuzzy Algorithm

In recent years,tunnel construction in China is developing rapidly.For the design and construction of tunnels and underground projects,the relevant engineering construction theory and experience still need to be rich.Because of the complexity of rock and soil strata and the high requirement of environmental protection,the construction technology is becoming more and more difficult.At the same time,in view of the obvious randomness of the characteristics of rock and soil layers and the lack of experience in dealing with some complex engineering problems,in some projects with complex geological conditions and high environmental requirements,the relevant engineering design and construction schemes lack theoretical and empirical guidance,resulting in frequent engineering accidents.In order to avoid the above situation,by analyzing the problems existing in the four traditional classification methods of surrounding rock,this study combines the fuzzy algorithm to classify the surrounding rock in detail,and studies the index system of surrounding rock classification and the basic concepts of the fuzzy theory.Six important influencing factors are selected to construct the index system and classification standard of tunnel surrounding rock classification,determine the membership function of evaluation index,and determine the weight of evaluation index.According to the learning of relevant fuzzy algorithm knowledge,the influencing factors are selected to classify them,the membership degree of each grade is calculated,and the influencing factors are analyzed hierarchically.After consistency checking,the evaluation matrix at all levels is established,and finally the comprehensive evaluation model of the surrounding rock grade judgment of hydraulic tunnel is established.The comprehensive grade obtained by four traditional grading methods in engineering examples verifies the accuracy of the results obtained by the evaluation model,and proves that the method can quickly judge the stability of surrounding rock and provide guidance for the construction design scheme.Considering the large number of sections and heavy workload of the hydraulic tunnel surrounding rock classification calculation,the study integrates the Internet plus thinking into the study of the surrounding rock classification method of hydraulic tunnels to solve this problem.Based on the calculation process of the comprehensive evaluation model ofsurrounding rock based on the fuzzy algorithm,this research completes the development and operation of the intelligent surrounding rock judger.This smart phone application not only integrates the high reliability surrounding rock classification method,but also provides a convenient and fast method for surrounding rock classification work.It also has the advantage of easy carrying,and provides convenience for water conservancy workers working in the field.The verification of engineering examples shows that the intelligent system meets the expected design,can effectively improve the reliability and efficiency of surrounding rock classification method,and can provide a safe and reliable theoretical evaluation method for construction.