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为了提高超前地质预报在喀斯特地貌区的准确性,在百色-靖西高速公路工程全线21条隧道进行地质预报的基础上,对TSP、地质雷达、红外探水三种物探技术的综合运用和效果进行了系统的总结和研究,并以两个成功预报的实例详细阐述了综合地质预报方法的具体运用。经过与实际地质数据的对比辨析,有效地提高了物探方法的有效性和准确性:对于断层、节理带的预报,准确率在72%~90%;对于溶洞、暗河与岩溶管道的预报,主体准确率在60%~80%;对于围岩级别的解译,其准确度可在80%。
In order to improve the accuracy of advanced geological prediction in karst landform area, based on the geological prediction of 21 tunnels in the Baise-Jingxi Expressway project, the comprehensive application and effect of three geophysical techniques of TSP, GPR and IRWS The paper summarizes and researches systematically and elaborates the concrete application of the method of integrated geological forecasting with two examples of successful forecasting. Compared with the actual geologic data, the geophysical method effectively improves the validity and accuracy of the geophysical methods. The accuracy of prediction is between 72% and 90% for the prediction of faults and joint zones. For the prediction of karst caves, underground rivers and karst caves, The accuracy of the main body is 60% -80%; for the interpretation of surrounding rock level, its accuracy can be 80%.