A Study on the Improvement of the Stability of Small-Scale Manpower Tunnels for Food Storage

doi:10.15683/kosdi.2022.12.31.746

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2022 Vol.18, Issue 4 Preview Page Next Page

Original Article

A Study on the Improvement of the Stability of Small-Scale Manpower Tunnels for Food Storage 식품저장용 소규모 인력터널의 안정성 향상을 위한 방안 연구: 윤병조¹ㆍ박성윤²*ㆍ김령환³
Byung Jo Yoon¹, Sung Yun Park²*, Ryung Hwan Kim³; ¹Professor, Department of Urban Transportation Engineering, Incheon National University, Incheon, Republic of Korea
²Team Leader, Construction Business Department, Shin Tae-jin Construction Co., Ltd , Incheon, Republic of Korea
³Assistant Manager, Geologics The Ground Part, Incheon, Republic of Korea

31 December 2022. pp. 746-753

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Abstract

Purpose: The purpose of this study is to review the safety of small tunnels for food storage excavation in the 1960s~1970s and to improve the stability of small tunnels. Method: A visual inspection and a hammer test were used to conduct safety tests, and the visual inspection is one of the tests conducted for non-destructive testing, and the hammer test is one of the types of hitting methods of rebound hardness. Result: According to the integrated analysis of the survey area data, there are generally good appearance, but there are many small cracks and complex geological conditions, requiring continuous observation and attention. Seven of the 23 tunnels require safety diagnosis, one collapse, one safe, and 14 require continuous observation and attention. Conclusion: All parts of small tunnels should be checked and recorded from time to time, and stability is expected to be improved when reinforcing small tunnels proposed in this study.

Keywords

Small Tunnels

Safety Diagnosis

Reinforcement

Weathering Stations

연구목적: 본 연구에서는 1960~70년대에 굴착한 식품 저장용 소규모 터널에 대한 안전성 검토와 소규모 터널의 안정성 향상을 위한 방안을 연구목적으로 한다. 연구방법: 안전성 시험을 진행하고자 육안검사와 해머테스트를 이용하였으며, 육안검사는 비파괴검사에 실시되는 시험 중 하나이며, 해머테스트는 반발경도법의 타격법 종류 중의 하나이다. 연구결과: 조사지역 자료를 통합 분석한 결과 대체로 외관상 양호한 상태를 보이나 파쇄대와 균열된 풍화대가 많으며 또한 작은 균열이 많고 지질 상태가 복잡하여 지속적인 관찰과 주의가 요구되며, 23개의 터널 중 7개는 안전진단이 필요하며, 1개는 붕괴상태, 1개는 안전하며, 14개는 지속적인 관찰과 주의가 필요하다. 결론: 수시로 소규모 터널의 모든 부분을 점검하고 기록으로 남겨야 하며, 본 연구에서 제안한 소규모 터널의 보강 진행시 안정성이 향상될 것으로 기대한다.

키워드

소규모 터널

안전진단

보강

풍화대

References

Barton, N., Lien, R., Lunde, J. (1974). "Engineering classification of rock mass for tunnel support design." Rock Mechanics, Vol. 6, pp. 189-236. 10.1007/BF01239496
Bieniawski, Z.T. (1973). "Engineering classification of joint lock mass." Transactions by South African Civil Engineering Agency, Vol. 15, pp. 355-344.
Chambon, P., Corte, J.F. (1994). "Shallow tunnels in cohesionless soil: stability of tunnel face." Journal of Geotechnical Engineering, Vol. 120, No. 7, pp. 1148-1165. 10.1061/(ASCE)0733-9410(1994)120:7(1148)
Duddeck, H., Erdmann, J. (1985). "On structural design model for tunnels in soft soil." Underground Space, Vol. 9, No. 5-6.
Einstein, H.H., Schwartz, C.W. (1979). "Simplified analysis for tunnel supports." Journal of the Geotechnical Engineering Division, Vol. 105, No. 4, pp. 499-518. 10.1061/AJGEB6.0000786
Gnilsen, R. (1989). Numerical Methods, Developments in Geotechnical Engineering. 59A, Underground Structures Design and Instrumentation, Elsevier, New York, pp. 84-128. 10.1016/B978-0-444-87462-7.50010-4
Lee, S.D. (2013). Tunnel Mechanics. CIR Publication, Seoul, pp. 253-360.
Park, C.H., Lee, S.D. (2017). "Experimental study on the behavior of the adjacent ground due to the sidewall failure in a shallow Tunnel." Journal of Kprean Tunnelling and Underground Space Association, pp. 871-885.
Terzaghi, K. (1936). "Stress distribution in dry and in saturated sand above a yielding trap-door." Proceedings of the First International Conference on Soil Mechanics and Foundation Engineering, Cambridge, Vol. 1, pp. 307-311.

Information

Publisher :The Korean Society of Disaster Information
Publisher(Ko) :한국재난정보학회
Journal Title :Journal of the Society of Disaster Information
Journal Title(Ko) :한국재난정보학회논문집
Volume : 18
No :4
Pages :746-753
DOI :https://doi.org/10.15683/kosdi.2022.12.31.746

[1] Barton, N., Lien, R., Lunde, J. (1974). "Engineering classification of rock mass for tunnel support design." Rock Mechanics, Vol. 6, pp. 189-236. 10.1007/BF01239496

[2] Bieniawski, Z.T. (1973). "Engineering classification of joint lock mass." Transactions by South African Civil Engineering Agency, Vol. 15, pp. 355-344.

[3] Chambon, P., Corte, J.F. (1994). "Shallow tunnels in cohesionless soil: stability of tunnel face." Journal of Geotechnical Engineering, Vol. 120, No. 7, pp. 1148-1165. 10.1061/(ASCE)0733-9410(1994)120:7(1148)

[4] Duddeck, H., Erdmann, J. (1985). "On structural design model for tunnels in soft soil." Underground Space, Vol. 9, No. 5-6.

[5] Einstein, H.H., Schwartz, C.W. (1979). "Simplified analysis for tunnel supports." Journal of the Geotechnical Engineering Division, Vol. 105, No. 4, pp. 499-518. 10.1061/AJGEB6.0000786

[6] Gnilsen, R. (1989). Numerical Methods, Developments in Geotechnical Engineering. 59A, Underground Structures Design and Instrumentation, Elsevier, New York, pp. 84-128. 10.1016/B978-0-444-87462-7.50010-4

[7] Lee, S.D. (2013). Tunnel Mechanics. CIR Publication, Seoul, pp. 253-360.

[8] Park, C.H., Lee, S.D. (2017). "Experimental study on the behavior of the adjacent ground due to the sidewall failure in a shallow Tunnel." Journal of Kprean Tunnelling and Underground Space Association, pp. 871-885.

[9] Terzaghi, K. (1936). "Stress distribution in dry and in saturated sand above a yielding trap-door." Proceedings of the First International Conference on Soil Mechanics and Foundation Engineering, Cambridge, Vol. 1, pp. 307-311.

Journal of the Society of Disaster Information ISSN:1976-2208(Print) 2671-5287(Online) 한국재난정보학회논문집

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