基于探地雷达岩体浅部节理面识别的模型实验

doi:10.11720/wtyht.2020.1230

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Abstract

In order to accurately obtain the information of the joint surface which hides inside the rock mass and the floating soil cover, the authors employed the geological radar detection technology, established the trigonometric function measurement formula of the true and apparent dip angle as well as inclination and length of the joint surface and obtained he accurate solution of such pieces of information as attitude and length. Using wet wood-fine sand indoor model test, the authors verified the rationality of the theoretical solution.

Key words： ground penetrating radar joint attitude sandbox model

Received: 23 April 2019 Published: 03 March 2020

P631

Corresponding Authors: Feng LIANG E-mail: 3830361@qq.com

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	Fei-Xiang WANG
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	Shuang-Ying ZUO

Cite this article:

Fei-Xiang WANG,Feng LIANG,Shuang-Ying ZUO. Model test on the identification of shallow joints in rock mass based on ground penetrating radar[J]. Geophysical and Geochemical Exploration, 2020, 44(1): 185-190.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2020.1230 OR https://www.wutanyuhuatan.com/EN/Y2020/V44/I1/185

Diagram of relation between true inclination and apparent inclination

Schematic diagram of joint surface length detected by GPR

Schematic diagram of sand box test model

Radar profile images of simulated joint surfaces in the sandbox detected along the apparent dip direction(the angle in the figure is azimuth angle)

The true and measured values of simulated joint occurrence in the sandbox detected along the apparent dip direction

The true and measured values of the simulated joint surface length in the sandbox detected along the apparent dip direction

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