Abstract:Karst is widely developed in China, and its development is irregular and characteristics are extremely complex. In the construction process of various projects, it is difficult to identify the development of karst through the traditional drilling methods, and the scope of karst development cannot be accurately determined. The borehole data and results of tube wave detection are synthesized through an engineering example, and the karst development range analyzed by the borehole data is analyzed and compared with that obtained by combining the borehole data and the tube wave detection. The results show that there are great differences in the range of karst development determined by the two methods. The analysis and research can provide a new idea for judging the karst development, and also provide more accurate engineering geological basis for the relevant design and construction of such areas.