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本文以湖南里耶秦代古城护城河勘察为例系统介绍了综合运用高密度电法及改进的轻型动力触探确定隐伏古护城河的位置、深度及形状的方法。该方法在尽可能不损伤文物的条件下,实现了古护城河的准确勘察,在古遗址勘察方面与传统方法相比具有明显优势。文中提出的改进的轻型动力触探设备及工艺可在护城河河底取土,根据充填物与护城河底土层力学性质的差异及地层的变化准确确定护城河的深度。
In this paper, a case study of moat in the ancient city of Qin Dynasty in Liye County, Hunan Province is taken as an example to introduce the method of determining the location, depth and shape of the hidden moat using a combination of high-density electrical method and improved light dynamic penetration. The method realizes the accurate investigation of the ancient moat under the condition of not damaging the cultural relics as much as possible and has obvious advantages compared with the traditional method in the survey of ancient sites. The improved light dynamic probe equipment and technology proposed in this article can take soil in the moat bottom and determine the depth of the moat accurately according to the difference of mechanical properties between the fill and the moat bottom and the change of stratum.