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塌方是隧道开挖过程中,最常见、危害较大的工程地质问题之一。处理塌方,首先必须详细查清塌方的范围、形状、地质构造和地下水活动情况,经认真分析,然后制定处理方案。该文以福建某隧道出口塌方段为例,应用地质雷达对塌方体的规模、塌方体的分界面等进行探测,获得了较准确的探测结果,论证了地质雷达在塌方体探测中的可行性及其应用范围。
Landslide is one of the most common and harmful geological engineering problems in tunnel excavation. To deal with the landslide, we must first thoroughly examine the scope, shape, geological structure and groundwater activities of the landslide. After careful analysis, we then formulate a treatment plan. In this paper, an example is taken of the collapsed section at the exit of a tunnel in Fujian Province. Geological radar is used to detect the scale of the collapsed body and the interface of the collapsed body. The result of the detection is more accurate and the feasibility of the geologic radar in detecting the collapsed body is demonstrated And its application.