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Research Article

Slope Behavior Analysis Using the Measurement of GFRP Underground Displacement

GFRP 록볼트 계측을 통한 사면 거동 분석

Ji-Huan Jin1
,
Hyun-Taek Lim2
,
Tamang Bibek3
,
Suk-Hyun Chang4
,
Yong-Seong Kim5*
김 기환1
,
임 현택2
,
타망 비벡3
,
장 석현4
,
김 용성5*
1Member, Researcher, Smart Geotech Co., LTD., Kangwon National University, Kangwondaehak-gil 1 Chuncheon-si, Gangwon-do 24341, Republic of Korea
2Nonmember, Ph.D. Candidate, Department of Regional Infrastructure Engineering, Kangwon National University, Kangwondaehak-gil 1 Chuncheon-si, Gangwon-do 24341, Republic of Korea
3Nonmember, Combined Master's and Doctoral Program Student, Department of Regional Infrastructure Engineering, Kangwon National University, Kangwondaehak-gil 1 Chuncheon-si, Gangwon-do 24341, Republic of Korea
4Nonmember, Managing Director, Dongmyeong Engineering Consultants & Architecture Co., LTD., 497 Cheonggyecheon-ro, Dongdaemun-gu, Seoul 02589, Republic of Korea
5Member, Professor, Department of Regional Infrastructure Engineering, Kangwon National University, Kangwondaehak-gil 1 Chuncheon-si, Gangwon-do 24341, Republic of Korea
* Corresponding Author
30 December 2018. pp. 11-19
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Abstract

국내･외에서 사면 붕괴 조기 경보를 위한 모니터링 및 자동측정기에 대한 많은 연구가 있지만 대부분 사면 붕괴 측정기가 사면의 표층에 설치되어 있어 사면의 붕괴 등 재난이 발생되기 전에 감지 및 경보가 가능한 시스템에 대한 연구는 거의 없는 실정이다. 본 연구에서는 록볼트에 센서를 부착하여 사면 붕괴 모의 실험을 수행하였고, 사면 붕괴 초기에 발생하는 사면 거동 특성을 분석하였다. 또한, 숏크리트를 타설한 사면과 자연사면, GFRP와 나선형 철근 록볼트를 사용하여 사면 조건 및 재료 조건에 따른 실험을 수행하고 결과를 비교･검토하였다. 본 연구는 급경사지 및 산사태 위험 지역 등 사면 붕괴 발생 전 조기 감지 및 경보를 통하여 사전에 대피할 수 있는 예･경보시스템 개발 시 기초자료로 활용 될 수 있을 것으로 판단된다.

Although many researches related to monitoring and automatic measuring devices for early warning system during slope failure have been carried out in Korea and aboard, most of the researches have installed measuring devices on the slope surface, and there are only few researches about warning systems that can detect and warn before slope failure and disaster occurs. In this study, slope failure simulation experiment was performed by attaching sensors to rock bolts, and initial slope behavior characteristics during slope failure were analyzed. Also, the experiment results were compared and reviewed with varied slope conditions, i.e. shotcrete slope and natural slope, and varied material conditions, i.e. GFRP and steel rock bolt. This study can be used as a basic data in development of warning and alarm system for early evacuation through early detection and warning before slope failure occurs in steep slopes and slope failure vulnerable areas.

Keywords
Slope failure prediction
Underground displacement
Measuring system
GFRP (Glass fiber reinforced plastic)
Rock bolt

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Information
  • Publisher :Korean Geosythetics Society
  • Publisher(Ko) :한국지반신소재학회
  • Journal Title :Journal of the Korean Geosynthetics Society
  • Journal Title(Ko) :한국지반신소재학회 논문집
  • Volume : 17
  • No :4
  • Pages :11-19
  • Received Date : 2018-10-17
  • Revised Date : 2018-10-31
  • Accepted Date : 2018-10-31
  • DOI :https://doi.org/10.12814/jkgss.2018.17.4.011
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