Effect of orientation of fracture zone on tunnel behavior during construction using model test

조윤규; 신승민; 정은목; 최정혁; Chung Sik Yoo

Effect of orientation of fracture zone on tunnel behavior during construction using model test

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실내 모형실험을 통한 시공 중 파쇄대의 공간적 분포가 터널거동에 미치는 영향

Type: Academic journal

Author: 조윤규 신승민 정은목 최정혁 Chung Sik Yoo

Journal: 한국터널지하공간학회 한국터널지하공간학회 논문집 한국터널지하공간학회 논문집 제17권 제3호 KCI Accredited Journals

Published: 2015.1

Pages: 189 - 204 (16page)

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Effect of orientation of fracture zone on tunnel behavior during construction using model test

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This paper presents the results of reduced scale model tests on the effect of fault zone characteristics on the tunnel deformation behavior. A series of model tests were carried out on deep tunnels considering different fault zone orientations and offset distance. The tunnelling process was simulated in the model tests using compressed air technique. During the tests, the tunnel and ground deformation were mainly monitored while reducing the pressure inside the tunnel and the relationship between the pressure level and the tunnel deformation were established. The results indicate that for a given offset distance the tunnel behavior is influenced the most when the fault zone dips vertically while smallest influence occurs when the fault zone dips 45 degrees.

#터널 #파쇄대 #축소모형실험 #발파 굴착 터널 #굴착 #Tunnel #Fracture zone #Reduced-scale model test #Drill and blast tunnel #Excavation

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References (15)

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HSE. / 1996 / Safety of new austrian tunnelling method (NATM) tunnels / Health & Safety Executive : 86 ~

Hunag, F. / 2013 / The effect of weak interlayer on the failure pattern of rock mass around tunnel. scaled model tests and numerical analysis / Tunnelling and Underground Spa

Kim, C. Y. / 2004 / Numerical analysis of the convergence behavior of the tunnel / Tunnel & Underground Space 6 (3) : 183 ~ 197

Korea Institute of Construction Technology / 2009 / Development of Technologies Minimizing and Preventing the Disaster on Tunnel Construction [VI]

Korean Tunneling & Underground Space Association / 2010 / Case Histories of Tunnel Collapse

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