| At present,the high density resistivity method has become an important geophysical exploration method in the investigation of geological disasters such as debris flow.Using this method to investigate the debris flow disaster is aimed to find out the debris flow in the basin formation,geological structure and the bedrock buried depth,extent of weathering,layering and thickness of the quaternary debris and loose debris deposits distribution,thickness,etc.Based on the "Jilin province YongJi County geological disaster investigation and regionalization(1:50 000)" project(20140930-FW08-A)as the backing,with YongJi County stone gully debris flow disaster as the research object,according to the geological disaster investigation to the specific requirements of the debris flow disaster investigation,the application of high-density electrical method of Dashi gully some practical problems in the process of study,concrete research content and conclusions are as follows:1.Based on the collected geological data of yongji county and combined with the results of field investigation,the geological environment and geophysical conditions of the mudflow in the great rock gully were introduced.2.According to the study of regional geological data,to establish the corresponding geoelectric model,adopt the method of numerical simulation analysis of the high density resistivity method in data inversion results with boundary effect,and reduce the effect is discussed by use of the specific technical measures,in order to improve the accuracy of geological interpretation.3.The effect of noise on the detection result is studied by numerical simulation,which provides some basis for the corresponding measures in the actual construction process.4.The above simulation results applied to the stone gully actual detection process,realize the detection of stone gully loose deposit,and the reliability of the detection results are validated by drilling data. |
PDF Full Text Request