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2018 Vol.28, Issue 4
August 2018. pp. 293-303

Monitoring is the act of collecting and analyzing accurate engineering information using various methods and instruments. The purposes of the monitoring are design verification, construction management, quality control, safety management, and diagnose of structure etc.. The diagnose evaluation of the geotechnical structures corresponds to the confirmation of the structural performance. It is aimed to judge the soundness of geotechnical structures considering the degree of damage due to the environmental change and elapsed time. Recently, microseismicity, which is widely known in Korea, can be used for safety management and diagnoses of structure as it detects the micro-damage without disturbance of the structure. This report provides guideline on the procedure for assessing an underground oil storage cavern using microseismic monitoring techniques. Guidelines cover the selection of monitoring systems, sensor array, sensor installation and operation of systems, and interpretation.

모니터링은 여러 방법과 장치를 이용하여 공학적 정보를 정확하게 수집하여 분석하는 행위를 말한다. 모니터링의 목적은 설계확인, 시공관리, 품질관리, 안전관리, 구조물 성능 확인 등이 있으며, 지반구조물 진단평가는 구조물의 성능 확인에 해당하는 것으로 구조물이 사용 개시 후 환경 변화나 경년에 의해 누적된 피로 손상도를 고려하여 구조물의 건전도 판단을 목적으로 한다. 근래 국내에서 많이 알려진 음향미소진동은 구조물의 교란이 없는 상태에서 미세 수준의 손상을 감지하여 안전관리 및 구조물의 성능 확인에 활용될 수 있다. 본 보고는 음향미소진동 모니터링 기법을 이용하여 유류지하저장시설을 진단평가하는 절차에 대한 가이드라인을 소개한다. 가이드라인에는 모니터링 시스템 선정, 센서 배열과 설치 및 시스템 운영, 해석 등을 다루고 있다.

  1. ASTM Standard E750, 2015, Standard Practice for Characterizing acoustic emission Instrumentation, ASTM International.
  2. ASTM Standard E1316, 2018, Terminology for Nondestructive Examinations, ASTM International.
  3. Ishida., T., Labuz, J.F., Manthei, G., Meredith, P.G., Nasseri, M.H.B., Shin, K., Yokyama, T., Zang, A., 2017, ISRM Suggested Method for Laboratory Acoustic Emission Monitoring, Rock Mech. Rock Eng., 50, 665-674.10.1007/s00603-016-1165-z
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  5. NDIS 2421, 2000, Recommended practice for in situ monitoring of concrete structure by acoustic emission, Japanese Society for Nondestructive Inspection.
  6. KS B 0550, 1996, Glossary of terms in nondestructive testing, Korean Agency for Technology and Standards.
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  8. Xiao, Y.X, Feng, X.T., Hudson, J.A., Chen, B.R., Feng, G.L., Liu, J.P., 2016, ISRM Suggested Method for In Situ Microseismic Monitoring of the Fractureing Process in Rock Masses, Rock Mech. Rock Eng., 49, 843-869.10.1007/s00603-015-0859-y
  • Publisher :Korean Society for Rock Mechanics and Rock Engineering
  • Publisher(Ko) :한국암반공학회
  • Journal Title :Tunnel and Underground Space
  • Journal Title(Ko) :터널과 지하공간
  • Volume : 28
  • No :4
  • Pages :293-303
  • Received Date :2018. 07. 06
  • Accepted Date : 2018. 07. 24