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Locational accuracy of underground utility mapping using ground penetrating radar

机译：探地雷达在地下公用设施测绘中的定位精度

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摘要

Many of today's underground utilities are reaching the end of their practical life and need to be replaced or repaired. At the same time, new utility installations due to urban expansion and development of new communication technologies such as broadband are in progress. Hence accurate information of these utilities is essential for utility owners, engineers, contractors or surveyors, particularly as reference for excavation. Ground penetrating radar has been widely used in extracting information of buried utilities for better utility maintenance and management. The widely used scanning technique (i.e. 'perpendicular-to-pipe' scanning) is limited for retrieving the precise position of targets due to the effects of surrounding media. This paper provides a solution for the prevention of failed excavations by means of precise underground utility mapping. This paper first of all examines the accuracy of the commonly used data acquisition scanning technique, by conduction a series of tests, and then developed a better method. Subsequently, a real-life experiment was carried out to validate the performance of the proposed new scanning technique, to demonstrate its accuracy and effectiveness. We found that our method was able to do 'along-pipe' scanning with very high precision (i.e. less than +0.10 m, conforming to Quality Level A utility data). Hence, the proposed method set as a new benchmark for using ground penetrating radar for precisely locating buried utilities.
机译：如今，许多地下公用事业已经接近使用寿命，需要更换或维修。同时，由于城市的扩展以及诸如宽带之类的新通信技术的发展，新的公用事业设施正在建设中。因此，这些公用事业的准确信息对于公用事业所有者，工程师，承包商或测量师至关重要，尤其是作为挖掘的参考。探地雷达已广泛用于提取地下公用事业的信息，以更好地进行公用事业的维护和管理。由于周围介质的影响，被广泛使用的扫描技术（即“垂直于管道”扫描）在获取目标的精确位置方面受到限制。本文提供了一种通过精确的地下公用工程图防止挖掘失败的解决方案。本文首先通过进行一系列测试来检验常用数据采集扫描技术的准确性，然后提出一种更好的方法。随后，进行了真实的实验，以验证所提出的新扫描技术的性能，以证明其准确性和有效性。我们发现我们的方法能够以非常高的精度（即小于+0.10 m，符合A级质量实用数据）进行``沿管道''扫描。因此，该建议方法为使用探地雷达精确定位掩埋的公用设施设置了新的基准。

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