터널과지하공간 (Tunnel and Underground Space)
- 제4권3호
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- Pages.297-304
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- 1994
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- 1225-1275(pISSN)
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- 2287-1748(eISSN)
연약 암반내 터널 보갱법 설계를 위한 2차 응력 및 변위 계측에 관한 연구
On Monitoring of Induced Stress and Displacement for Support Design around Tunnel in Weak Rock
초록
This study aimed at analysis of induced stress and deformation behavior in rock mass around coal seams of Sam Chuck coal mine. For this study Vibrating Wire Stressmeters and Multi-point Borehole Extensometers were installed in the area of coal shale near coal seams. Induced stress and displacement in this area were coutinuously increased for 6 days from the begining of measurement, and then converged. But induced stress and displacement occurred when there were another openings by tunnelling and mining. The value of final induced stress was 21.8kgf/
키워드