应用地质雷达探测隧道地质构造

在海南东线高速公路大茅山隧道大断面掘进中，采用KDL－2型地质雷达超前探测灰岩地段溶洞，含水裂隙和煤层中瓦斯构造，探测结果基本符合掘进实际，由于超前的预测，预报，及时采取了预防措施，保障了安全生产，加快了工程进度，取得了良好的效益，．KDL－2型地质雷达探测工作性能稳定，探测比较准确，但对涌水量大小的预测稍差。

Using KDL-2 geological radar to explore the geological construct of tunnel

The result of using KDL?2 geological radar during excavating the cross section of Damaoshan tunnel in Hainan East Freeway to explore ahead of time the construct of limestone dissolving caves, aquifer crevices, and gas in coal beds is proved fit to reality. The look?ahead and accurate predict and forecast and the timely preventive measure guaranteed safe production, accelerated job schedule and acquired favorable benefit. KDL?2 geological radar is stable in its exploring function and accurate in exploring result. But it is weak in predicting the amount of current.