针对目前隧道施工地质风险预报系统预报准确率不高的问题，分析了TSP203预报系统存在的问题： 1）数据采集触发方式存在时间延迟误差； 2）存在隧道声波干扰； 3）检波器耦合方式造成采集的地震波记录信号容易失真； 4）数据处理手段简单。从预报原理出发，TGP针对这些问题进行了改进，同时强调需要结合工程地质知识进行综合分析，以及合理选择与其他手段的有效配合。通过在具体工程中的应用实践证明，改进后的地质预报系统很大程度上提高了隧道施工地质风险预报的准确性。

The accuracy of most advance geology prediction systems available in tunnel construction is not high. In the paper, the problems of TSP203 advance geology prediction system are analyzed in terms of the following aspects: 1) The trigger mode of the data collection system has time delay deviation; 2) There exists acoustic interference; 3) The coupling mode of the detector causes the distortion of the seismic wave signals collected; 4) The data treatment method is too simple. Regarding the problems of TSP203, TGP has made optimizations. TGP emphasizes that comprehensive analysis should be made on basis of the engineering geology knowledge and that other proper geology prediction methods should be adopted to assist TGP. The application of the optimized TGP in tunnel construction demonstrates that the advance geology prediction accuracy has been well improved. 