Geophysical Exploration Of Concealed Fault In Industrial Sites

Landfills are widely constructed with low cost and good sanitation,and the leachate treatment system is the key technology of the whole landfill site.Once leakage of the leakage liquid,it will directly threaten the nearby surface water and groundwater,causing severe environmental pollution.Therefore,as an industrial site of landfill,its site selection,design,construction and later operation and maintenance are extremely important,especially hazardous waste safety landfill,any link problems,will cause unimaginable losses.Liyong Town,Yufeng District,Liuzhou City,intends to build a domestic garbage landfill site,including hazardous waste landfill area,about 20 km away from the center of Liuzhou City,located in the Venous Industry Park.Field in quaternary cover thicker,can’t intuitive judgment whether there is a concealed fault or fracture zone through the area,especially in the area is located in the west side of river table syncline,clip in regional fault Gu Ting mountain thrust and speculation wave temple between fault,fault distance Gu Ting mountain on the east side of approximately 1.1 km,west of about 6.4 km from fault wave temple,two basic for north and south regional fault strike.In addition,there is a normal fault on the west side of the landfill about 3.6km with a north-south strike and an extended length of about6.7km.Therefore,the detection and analysis of the hidden fault in the landfill area is extremely urgent.Based on the vertical gully landfill(about 1 km2)as the research object,technology mainly by means of high-density electrical method,find out in the field of concealed faults as the main target,on the basis of the predecessors collect and organize data,based on the comprehensive analysis of concealed fault threat to site construction,from the different scale "area near region-site" study of geological structure background,From different time frame "early Paleozoic-late Paleozoic-the new generation of" research on surface feature and the evolution process of the fracture zone,through the concealed fault in the detection of the high-density electrical method,the fracture zone and karst development situation,to make full use of the high density resistivity method three device in geophysical interpretation of complement each other and validation in order to improve the detection accuracy,In this way,the threat degree of faults to the field can be evaluated more quickly and effectively,and then a set of rapid and reasonable concealed fault detection technology in industrial field can be explored.On the analysis of the different scale and different time range,on the basis of fracture structure,through field geological survey,geophysical exploration and verify the borehole construction and so on practical work,in the present arrangement of the three high density electric prospecting line,at the same time,using the high density resistivity method,calibration and verification device of three kinds of basic find out the distribution of the area near the fault,The hidden faults,fracture zones and karst development in the field were identified.In different scale range "area near region-site" study of geological structure background and different time range "early Paleozoic-late Paleozoic-the new generation of" research field on the basis of the landform and the evolution process of the fracture zone,through the present use of high-density electrical method in three kinds of device detection of concealed fault in jobsite,the venue supplementary reviewing geological survey,drilling,drilling verification,To achieve rapid and efficient detection effect,a set of efficient detection methods for concealed faults in industrial sites are explored,which provide scientific basis for the anti-seepage construction of Liuzhou Lichonggou Landfill and provide reference for similar geological projects.The social and economic significance is significant and significant.