Tunnel and Underground Space (터널과지하공간)
- Volume 7 Issue 3
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- Pages.208-220
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- 1997
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- 1225-1275(pISSN)
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- 2287-1748(eISSN)
The Effects of Blasting Vibrations on the Stability of Structure by Excavation around Shaft
수갱 인접 암반 굴착시 발파진동이 구조물의 안정에 미치는 영향
Abstract
To asses the stability of structure around shaft during the excavation of -300 ml hopper room at 2nd shaft in Jangsung mine, some measurements were made with blast monitoring, stressmeter, extensometer and inclinometers. Instrumentations proved to be reliable and data were montiored over six month period. Stressmeters were set at the points of wall and arch of inset gang(level). Induced stresses were measured with the magnitude of 2.81 kgf/
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