Research On 3D Engineering Geological Modeling And Evaluation Of Construction Site Construction Suitability In Qujing Development Zone

Nowadays,with the rapid growth of the social economy,the urbanization process continues to advance,and various cities are carrying out different degrees of urban geological work.For the research results obtained in the past geological survey work,on the basis of summarizing them,carry out three-dimensional visualization research work,so that the geological results data appears in another form.With the introduction of 3D modeling technology,many cities in China have launched3 D urban geological modeling work,and the north,Guangzhou and Shenzhen have achieved good results.In view of the fact that the 3D geological modeling work in Yunnan Province is still in its infancy,on the basis of sufficient investigation,this article combines the "Qujing City Development Zone 3D Geological Modeling" project,uses the ArcGIS platform,based on the borehole data,combined with the relevant geological background Data and engineering geological section,carry out the three-dimensional engineering geological structure modeling of the development zone of Qujing City,and provide reference basis for the urban planning and construction of Qujing City.At the same time,on the basis of building a three-dimensional engineering geological structure model,this paper uses geotechnical survey data and geological background data to carry out the evaluation of the construction site suitability of the development zone in Qujing City.According to national standards and relevant industry norms,establish an evaluation system,and quantify and quantify each evaluation index,use the analytic hierarchy process to obtain the weight of each index factor,establish a fuzzy comprehensive evaluation model,and build site suitability for the development zone of Qujing City Evaluation.The development of Qujing City is divided into four divisions: good suitability,medium suitability,poor suitability and poor suitability(unsuitable),and relevant suggestions are proposed for each district to provide a certain amount of urban planning and construction for Qujing City.