GROUND-PENETRATING RADAR FOR HIGH-RESOLUTION MAPPING OF SOIL AND ROCK STRATIGRAPHY
GROUND-PENETRATING RADAR FOR HIGH-RESOLUTION MAPPING OF SOIL AND ROCK STRATIGRAPHY
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DOI：
10.1111/j.1365-2478.1989.tb02221.x
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发表时间：
1989-07-01
影响因子：
2.6
通讯作者：
ANNAN, AP
中科院分区：
文献类型：
--
作者：
DAVIS, JL;ANNAN, AP
探地雷达是一种技术，它提供了一种新的方式来查看浅层土壤和岩石条件。为了更好地了解地球化学采样、岩土工程勘察和砂矿勘探等活动的覆盖层条件，以及控制地下水流的因素，对能够以比以前更高的分辨率对地下进行成像的技术的需求日益增加。探地雷达的应用领域多种多样。该方法已成功地用于绘制冰的厚度，水深在湖泊，基岩深度，土壤地层，和地下水位深度。它也被用来描绘岩石结构，探测空隙和识别岩溶特征。重点介绍了该雷达在高分辨率确定土壤地层和基岩裂缝方面的有效应用，并通过选定的案例说明了在现场获取高质量雷达数据的基本原理和实践。一个例子说明了如何使用雷达绘制基岩图，并描绘20米以上深度的土壤层。两个案例说明了如何利用雷达绘制矿井内40米范围内的岩石类型的断裂和变化。另一个案例说明了雷达如何也被用于探测和绘制地下水污染程度。通过钻孔调查对雷达结果的证实证明了高分辨率雷达方法作为常规取芯程序所获得信息的内插和外推辅助手段的能力和实用性。随着新仪器和现场程序的出现，雷达方法的常规应用在经济上变得可行，该方法将在未来得到广泛应用。
Ground‐penetrating radar is a technique which offers a new way of viewing shallow soil and rock conditions. The need to better understanding overburden conditions for activities such as geochemical sampling, geotechnical investigations, and placer exploration, as well as the factors controlling groundwater flow, has generated an increasing demand for techniques which can image the subsurface with higher resolution than previously possible.The areas of application for ground‐penetrating radar are diverse. The method has been used successfully to map ice thickness, water depth in lakes, bedrock depth, soil stratigraphy, and water table depth. It is also used to delineate rock fabric, detect voids and identify karst features. The effective application of the radar for the high‐resolution definition of soil stratigraphy and fractures in bedrock is highlighted.The basic principles and practices involved in acquiring high quality radar data in the field are illustrated by selected case histories. One example demonstrates how radar has been used to map the bedrock and delineate soil horizons to a depth of more than 20 m. Two case histories show how radar has been used to map fractures and changes of rock type to 40 m range from inside a mine. Another case history demonstrates how radar has also been used to detect and map the extent of groundwater contamination. The corroboration of the radar results by borehole investigations demonstrates the power and utility of the high‐resolution radar method as an aid for interpolation and extrapolation of the information obtained with conventional coring programmes. With the advent of new instrumentation and field procedures, the routine application of the radar method is becoming economically viable and the method will see expanded use in the future.