Investigation and evaluation of geological hazard risks in Huaining County
Huaining County is located in the southwestern part of Anhui Province,at the southern foot of the Dabie Mountains,where geological hazards such as collapses and landslides are more developed,posing potential safety hazards around the geologic hazard sites. In response to the implementation of the central government and the Anhui Provincial Government to strengthen the prevention and control of geologic hazards,the risk survey and evaluation was carried out in the whole county of Huaining County. Comprehensive remote sensing images,geological surveys,physical exploration,drilling and other technical results,the use of information quantity method,hierarchical analysis method of risk classification of Huaining County,to achieve the main results:(1)systematically summarize the geological environmental conditions and geological hazards in the area of the development of the characteristics;(2)Huaining County is divided into five high-risk areas,20 medium-risk areas,four low-risk areas,respectively,accounted for the national territory of the area of 0. 3%,15. 6%,84. 1% . The survey and evaluation of geological disaster risk in Huaining County is systematic and the data source is reliable,which on the one hand points out the direction for the subsequent prevention and control of geological disasters in the area,and on the other hand is an important reference significance for the similar areas to carry out the relevant work.
geologic hazardsrisk assessmentinformative approachintegrated prevention and controlHuaining County