本论文提出使用地震波速法和地质雷达法检测路基挡土墙的强度和几何尺寸 ，是一种快速、简便、无损、有效的检测方法。
The principle of using GPR in the quality detection of the railroad retaining wall and image identification principle are introduced.
用于超前地质预报的物探方法主要有，TSP法、地质雷达法、地震负视速度法、陆地声纳法、HSP声波反射法等，这些方法在应用中各有所长。
And the geophysical methods include TSP, Ground Penetrating Radar (GPR), seismic negative apparent velocity method, HSP and so on and these method have their own advantage each other.
实践表明，采用钻孔雷达和BEAM电法探测技术对隧道掌子面前方的不良地质情况，尤其是含水情况具有较好的预测结果。
The practice demonstrates that the prediction to adverse geologic condition in front of the heading face by boring radar and BEAM electric method, especially to water-holding condition, is satisfied.
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