为摸清滑坡要素的地质雷达响应特征,提高解释成果质量,在南面窑滑坡一处揭露了周界裂缝、滑体、滑带和滑床的开挖面上方布置地质雷达测线,进行了现场试验。通过开挖剖面与雷达剖面的对比,分析总结了滑坡各要素的地质雷达响应特征。发现:在雷达剖面上,周界裂缝处同相轴扭曲或错断;滑体上部同相轴近水平分布,连续性较好;滑体中部同相轴近曲线分布,连续性一般;滑体下部同相轴不明显或缺失;滑带反射波振幅较强,同相轴数量减少,同相轴形态平整顺直;滑床同相轴不明显或缺失。将总结的滑坡要素地质雷达响应特征应用于南面窑滑坡各条测线数据的资料解释工作,查明了南面窑滑坡结构。所总结的滑坡要素地质雷达响应特征可以为滑坡探测工作提供有益借鉴。

To find out the ground penetrating radar (GPR) response characteristics of landslide elements and improve the quality of interpretation results, a GPR survey line is arranged above the excavation profile where slide boundary, sliding body, sliding zone and sliding bed are exposed at Nanmianyao landslide, and the field test is carried out. The excavation profile is compared with the GPR profile, and the GPR response characteristics of landslide elements are analyzed. It is found that the events at the slide boundary are twisted or staggered; The events of the upper part of the sliding body are nearly horizontal, with good continuity; The events in the middle of the sliding body are nearly curved, and the continuity is general; The events at the lower part of the landslide are not obvious or missing; The amplitude of reflection waves in slip zone are strong, the number of events decreases, and the shape of events are flat and straight; Events of sliding bed is not obvious or missing. The summarized GPR response characteristics are applied to the data interpretation of Nanmianyao landslide, and the landslide structure is obtained. The summarized GPR response characteristics of landslide elements can provide useful reference for landslide detection.

               
                    0引言
1滑坡概况
2现场试验
3工程应用
4结论