Research On Risk Assessment And Safety Management Countermeasures For Bad Geological Tunnel Construction Of Expressway

The main content of this paper is inspired by the risk accidents in the construction process over the years,because the direction of national infrastructure development has moved towards remote areas and underdeveloped areas,so there are often differences in highway construction.The geological disasters and economic losses of the situation have even brought adverse effects to society.Therefore,based on the expressway and relying on the unfavorable geological tunnel,this paper finds that most of the accident factors are caused by bad geological disasters according to the safety accidents of the bad geological tunnel construction of the expressway.In addition,the national government attaches great importance to infrastructure construction at this stage,so the occurrence of safety accidents during the construction process will bring adverse effects to the national government,and will also bring economic losses to people’s lives.Therefore,in order to curb the occurrence of safety accidents during the construction of unfavorable geological tunnels,it is necessary to conduct detailed research on safety accidents,identify the root causes of the risk factors affecting the accidents,and prevent the occurrence of risk accidents from the source,and also for the future highways.The construction of a bad geological tunnel establishes a safe and comfortable construction environment,which can further improve the safety production level of unfavorable geological tunnel construction.In the process of studying the safety evaluation and countermeasure management of bad geological tunnel construction of expressway,this paper mainly starts from the following aspects.First,determine the safety accidents of bad geological tunnel construction in the past 20 years,and classify the accidents safely,and analyze and deal with different types of accidents.Secondly,through literature analysis and accident summary in recent years,the current situation of unfavorable geological tunnel construction disasters is obtained,and various geological disasters are comprehensively understood in detail,and then the influence of different excavation methods on different geological tunnel construction processes is determined.Further research and summary of the safety management of the first stage tunnel construction is carried out to achieve the purpose of safety construction of unfavorable geological tunnels.The third is to conduct a detailed study on the safety evaluation of tunnel construction,and obtain a safety evaluation method and evaluation system.The detailed study of the Baishajing tunnel construction case is carried out,and the landslide,large deformation and muddy water accident are obtained through the analytic hierarchy process.The study of safety construction reasons and construction countermeasures also brings certain reference significance for similar construction engineering risks in the future.Finally,through the above analysis of different risk accidents,the early warning factors for construction accidents of bad geological tunnels and the corresponding construction countermeasures are obtained.It also provides certain construction countermeasures for the bad geological disasters of the expressway,and it also has far-reaching implications for infrastructure construction in the future.Impact.In this paper,the safety evaluation of the construction of unfavorable geological tunnels,although the analytic hierarchy process is used to obtain safety accidents for landslides,large deformations,and muddy water surge accidents,there are still some shortcomings.Because there are many kinds of safety evaluation methods,different safety evaluation methods may differ in the evaluation results of unified accidents,and the corresponding construction countermeasures may also appear inconsistent.At the same time,the overall professional quality of the construction workers is uneven,which will lead to different accidents caused by the same disaster.Therefore,the construction safety evaluation and corresponding construction countermeasures studied in this paper will bring the construction of the bad geological tunnel to a certain extent.Good reference significance,but also requires construction participants to carry out multi-faceted management of construction risk accidents in a timely manner.During the construction process,it is necessary to make regular calls to achieve timely understanding of construction risks and ensure construction safety.