Study On The Influence Of Engineering Geological Environment On Urban Planning In Guangyuan City

The environmental geology of the central urban area of Guangyuan city is relatively complex,which can be roughly divided into zhongshan,low hills,valley hills and DAMS.It is adjacent to the sichuan basin in the south and the longmen mountains in the north.The city is distributed in the valley in an east-west direction.Taking the urban environmental geology of Guangyuan city as an example,this paper adopts the analytic hierarchy process(ahp)and the grey clustering method to evaluate the urban environmental geology.The evaluation results of engineering geological environment in Guangyuan city as an important basis for urban land use planning,tries to analyze solve the main environmental geological problems of Guangyuan city,and compared with the current urban planning in Guangyuan city,propose the unreasonable places in the planning advice,at the same time Guangyuan city planning optimization scheme is put forward.The main research contents and conclusions of this paper are as follows:(1)Collect the data of natural geological environment background and engineering geological conditions in the urban area of Guangyuan city,analyze the main environmental geological problems existing in the urban area of Guangyuan city,the main geological disasters are: landslide,collapse,unstable slope,ground collapse,and make Suggestions on the prevention principles and prevention measures.(2)In the full understanding of Guangyuan city center based on the main factors of geological environment and influence factors of choice: the terrain slope,relative elevation difference,the degree of geothermal resources,abundant groundwater level,the degree of geological hazards,the geological disaster hazardous degree,geological disaster degree of governance,human engineering activity and population density of nine factors of geological environment appraisal factor.Using the analytic hierarchy process(ahp),grey clustering analysis calculation model,both the results are consistent,eventually,in 121 mesh jindong,achieve good geological environment evaluation area,a total of 35 cell accounted for about 28.93% of the total area of the study area,the area has less volatile terrain,elevation difference value is more appropriate,geological hazards frequency is not high;There are 80 cells in the middle area of geological environment assessment,accounting for about 66.12% of the total area.These areas are located in hilly areas,so the topographic undulation is larger than that of the former,and they are threatened by some geological disasters all year round.There are 6 cells in the poor geological environment evaluation area,accounting for 4.96% of the total area.These areas have a large undulation of terrain and a large risk of geological disasters.As the construction land of the city,another consideration should be made.(3)Based on the comprehensive evaluation of environmental geology management in the urban planning area of Guangyuan,the urban planning scheme is analyzed in combination with the land use planning of Guangyuan city.Based on the analysis of the geological environment,this paper puts forward some Suggestions on the layout of urban environment and the optimization of geological environment in Guangyuan city,including how to improve urban construction,public service construction and residential land construction in terms of urban layout.In terms of geological environment land use,it encourages the construction of sub-zones,the sustainable utilization of ecological environment such as water resources and the sustainable utilization and protection of geothermal resources under environmental protection.