Journal of the Society of Disaster Information (한국재난정보학회 논문집)

The Korean Society of Disaster Information (한국재난정보학회)
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An Experimental Study on Detecting materials of GPR for Maintenance of Restored Cavities

복구된 공동의 유지관리를 위한 GPR 탐사용 탐지물질에 관한 실험적 연구

  • Park, Jeong Jun (Incheon Disaster Prevention Research Center, Incheon National University) ;
  • Shin, Eun Chul (Dept. of Civil and Environ. Engrg., Incheon National University) ;
  • Park, Kwang Seok (Dept. of Civil and Environ. Engrg., Incheon National University) ;
  • Shin, Hee Soo (UCI Tech Co. Ltd) ;
  • Hong, Gigwon (Institute of Technology Research and Development, Korea Engrg. and construction)
  • Received : 2018.11.02
  • Accepted : 2018.12.03
  • Published : 2018.12.31
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Abstract

Purpose: The purpose of this study is to verify the effectiveness of maintenance method using GPR exploration by buried detective materials in the ground for efficient maintenance of recovered cavities. Method: EMI sheet, EMI paint, and ferronickel slag were used as the detection materials, and the experiment was conducted by varying the size and depth of the buried detectable material. Results: As a result of the exploration, Detectable influence range by GPR exploration was found depending on the size and depth of buried detectable material in all materials, and the possibility of using it as a detection material was confirmed.

연구목적: 본 연구에서는 복구된 공동의 효율적인 유지관리를 위해 지중 내 탐지물질을 매설하고, GPR 탐사를 이용한 유지관리 방법의 효용성을 검증하는데 목적이 있다. 연구방법: 탐지물질은 EMI 시트, EMI 페인트, 페로니켈 슬래그를 사용하였고 매설된 탐지물질의 크기, 깊이를 달리하여 실험을 진행하였다. 연구결과: 탐사 결과 모든 재료에서 매설된 탐지물질의 크기, 깊이에 따라 지표에서 GPR 탐사로 탐지할 수 있는 영향범위가 나타났으며, 탐지물질로 사용할 수 있는 가능성을 확인하였다.

Keywords

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Fig. 1. Concepts and results of radar exploration(Davis and Annan, 1989)

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Fig. 2. Detecting materials used in the field

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Fig. 3. Outline of on-site GPR exploration

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Fig. 4. Buried detective material and GPR exploration

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Fig. 5. Non-buried section and buried section exploration result of detection material(H=25cm)

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Fig. 6. Non-buried section and buried section exploration result of detection material(H=50cm)

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Fig. 7. Non-buried section and buried section exploration result of detection material(H=100cm)

JNJBBH_2018_v14n4_430_f0008.png 이미지

Fig. 8. Detectable influence range

Table 1. Results of physical property test of field sampling soil samples

JNJBBH_2018_v14n4_430_t0001.png 이미지

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