Research On Safety Evaluation Of Railway Waste Slag Field Based On Environmental Protection

With the continuous construction of railway projects,the waste slag generated by excavation and construction along the line is increasing.The railway project waste slag field is a destructive auxiliary project derived from the railway construction process.Its unstable landslide and soil erosion pose a huge threat to the safe operation of the railway and the ecology along the line.Therefore,it is of great significance to study the safety of the waste slag field of railway projects.This paper discusses the contents of the safety analysis of the waste slag field around the main projects included in the railway project waste slag field,and introduces the analysis methods of main project safety.On this basis,the comprehensive safety evaluation model of the waste slag field is established,and the actual the waste slag field is analyzed for safety.The results are as follows:(1)In the safety analysis of the railway project waste slag field,the concept of environmental protection is introduced.From the perspective of main projects included in the waste slag,new contents are introduced into the stability analysis of the traditional waste slag field.The main analysis contents include: analysis of slag yard site selection project,interception and drainage project,slope project,interception project and land reclamation project.(2)The safety analysis methods for the main projects of railway waste slag field are respectively expounded: Evaluating the environmental rationality and site stability and suitability of the site selection of waste slag yard according to relevant specifications;Checking whether the interception and drainage project of the waste slag yard can meet the rainwater harvesting;Using finite element software Geo-studio to analyze the safety stability of the slope of the waste slag yard;Using Lizheng geotechnical software to analyze the safety and stability of the retaining structure of the waste slag yard;Using the method of field investigation and analysis to judge the waste slag Safety and environmental protection effect of land reclamation.(3)Based on the safety analysis of the main projects of the railway project waste slag field,the comprehensive safety evaluation model of the railway waste slag field is established by using the analytic hierarchy process..(4)Combined with the specific engineering examples,the main projects safety analysis process of the railway project waste slag yard is expounded,and the safety status of the project instance is determined by the comprehensive safety evaluation model..(5)The key technologies for design and repair that have a great impact on the safety of major railway slag yards are highlighted..