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A study on the establishment of stress limit values of management monitoring in tunnel

터널 유지관리계측의 응력 관리기준치 설정에 관한 연구

Jong-Tae Woo1*
우 종태1*
1Dept. of Construction and Environmental Design, Kyungbok University
1경복대학교 건설환경디자인과 교수
*교신저자. *Corresponding Author. 
31 January 2015. pp. 25-32
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Abstract

This study analyzed a monitoring data, based on the initial limit values of monitoring in subway, of concrete lining stress and reinforcement stress. The data is obtained from 7 sections of the Seoul metropolitan subway line No 6, 7, and 9 in about 5 years. Also, a research is performed to set up the limit values of management monitoring ,which will be applied to management monitoring in tunnel, through comparing the limit values of overseas management monitoring data and that of domestic management monitoring data. And the result obtained from comparison shows that the safety phase is 60% of allowable stress, the attention phase is 80% of allowable stress and the precision analysis phase is 100% of allowable stress. Also, we presented a method of management monitoring by the absolute value which can be easily applied in practical affairs.

Keywords
Management monitoring in tunnel
Stress limit values
Concrete lining stress
Concrete lining reinforcement stress

본 논문은 터널 유지관리계측의 응력 관리기준치 설정에 대한 연구로 계측 초기에 설정된 지하철계측 초기 관리기준치를 토대로 서울지하철 6,7,9호선 7개 대표단면의 콘크리트라이닝 응력, 콘크리트라이닝 철근응력, 콘크리트라이닝 내공변위에 대하여 약 5년에 걸친 계측 실적을 분석하고, 국외 계측관리기준을 비교하여 향후 터널 유지관리계측에 적용할 응력 계측관리기준치 설정에 대한 연구를 수행하였다. 연구결과 향후에 터널에 적용할 유지관리계측의 응력 관리기준치는 국내적용 계측관리기준치와 국외적용 계측관리기준치 분석결과를 비교하여 안전단계는 허용응력의 60%, 주의단계는 허용응력의 80%, 정밀분석단계는 허용응력의 100%로 실무에서 쉽게 적용할 수 있는 절대치에 의한 계측관리방법을 제안하였다.

키워드
터널 유지관리계측
응력 관리기준치
콘크리트라이닝 응력
콘크리트라이닝 철근응력
References
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Information
  • Publisher :Korean Tunneling and Underground Space Association
  • Publisher(Ko) :한국터널지하공간학회
  • Journal Title :Journal of Korean Tunnelling and Underground Space Association
  • Journal Title(Ko) :한국터널지하공간학회 논문집
  • Volume : 17
  • No :1
  • Pages :25-32
  • Received Date : 2014-12-03
  • Revised Date : 2014-12-29
  • Accepted Date : 2015-01-12
  • DOI :https://doi.org/10.9711/KTAJ.2015.17.1.025
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