In order to solve the problem of geological disasters caused by ground karst collapse

the high-density resistivity method is used for detection to solve such problems. Taking ground collapse in a certain area of Hunan as the research object

the high-density resistivity method is used to delineate the location of karst fissures

delimit key collapse areas

and find out the geological structure and lithological changes in the collapsed area. Through this exploration method

72 karst fissure development areas

6 fissure development areas and 4 fault control points have been delineated for this area

which confirms the feasibility and effectiveness of the high-density resistivity method in karst collapse. It can be a geological disaster provide technical support for prevention and treatment.