Characteristics and Laws of Karst Development in Qingtang South of Jiangxi Province
Based on 1∶50 000 hydrogeological and water resources surveys,the characteristics and laws of karst development in Qingtang area were studied by means of exploration and production Wells.The results show that there are three karst basins in Qingtang area,among which,there are 35 karst caves in Wanggan basin.The height of karst caves is generally 1~2 m,the highest is 11.28 m,the lowest is 0.3 m,and the karst rate of borehole is 15%;There are 24 exposed karst caves in Qingtang basin,the karst caves are generally 1~5 m,the highest is 26.91 m,and the karst rate of drilling holes is 13%;There are six karst caves in Meijiao basin.The height of karst ca-ves is generally 0.59~1.80 m,the highest is 8 m,and the karst rate of boreholes is 3.6%.The comprehensive analysis shows that the karst is mainly controlled by fault structure,plane and erosion base plane.The study of karst development characteristics and laws in Qingtang area provides scien-tific basis for the site selection of important projects and the prevention of geological disasters.
geological surveykarst developmentcharacteristics and rulesQingtang South of Jiangxi