地震波速对于隧洞超前地质预报的影响分析

Effect Analysis of Seismic Wave Velocity on Advanced Geological Forecast of Tunnel

从理论和实际应用的角度,结合国外工程实例,以TST这一具有代表性的超前地质预报方法为例,对比隧洞开挖后的围岩地质条件,分析隧洞预测段整体平均波速的变化和分段波速的变化对TST超前地质预报的影响,表明准确的地震波速是进行超前地质预报的前提。

From theoretical and practical point of view, combined with the overseas project examples, taking the example of representative advanced geological forecast, this paper analyses variation of overall average velocity and the influence of the change of the velocity of the segment on the TST advanced geological forecast, shows that the accurate seismic velocity is the premise of advanced geological forecast.