Stress Distribution and Possible Stress Induced Failure Around Roadway Tunnel inside Madhyapara Hardrock Mine, Bangladesh
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In the present research the detail stress analysis has been carried out using Kirsch’s equation inscribing circular roof of the tunnel. A computer program using FORTRAN has been developed in order to calculate the stresses in and around the tunnel opening. It is observed from the analyses that the maximum principal stresses are found at the corner of the arc of the opening. At the corner compressive stress is active whereas tensile stress is prevails on the top of the roof. We compared the different stresses whose are active surrounding the Roadway tunnel with strength of the rock and try to predict the possible failure. Strength of rock of different categories is determined from laboratory tests and found that the rock strength are 105 Mpa, 70 Mpa and 40 Mpa of rock categories I, II & III respectively. It is mentioned that rock are categorized on the basis of joint spacing. According to the stress distribution, the stress-induced failure could be occurred around the corner of the arc at initial period of tunnel construction. The line of failure was determined using uniaxial compressive strength of rock and the maximum and minimum principal stresses. It is found that notches and failed region are larger in rock category-III
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How to Cite
S1, I. M., Q2, C., Deb3, S. N., & L.4, M. I.. (2012). Stress Distribution and Possible Stress Induced Failure Around Roadway Tunnel inside Madhyapara Hardrock Mine, Bangladesh. Journal of Business and Retail Management Research, Volume 02 Issue 1.
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APA
S1, I. M., Q2, C., Deb3, S. N., & L.4, M. I.. (2012). Stress Distribution and Possible Stress Induced Failure Around Roadway Tunnel inside Madhyapara Hardrock Mine, Bangladesh. Journal of Business and Retail Management Research, Volume 02 Issue 1.
MLA
S1, Islam M., et al.. "Stress Distribution and Possible Stress Induced Failure Around Roadway Tunnel inside Madhyapara Hardrock Mine, Bangladesh." Journal of Business and Retail Management Research, Volume 02 Issue 1, 2012.
Chicago
Islam M. S1, Chowdhury Q2, Saumitra Narayan Deb3, and Mashkovtsev I. L.4. "Stress Distribution and Possible Stress Induced Failure Around Roadway Tunnel inside Madhyapara Hardrock Mine, Bangladesh." Journal of Business and Retail Management Research Volume 02 Issue 1 (28 Feb 2012).
Harvard
S1, I. M., Q2, C., Deb3, S. N., & L.4, M. I. (2012) Stress Distribution and Possible Stress Induced Failure Around Roadway Tunnel inside Madhyapara Hardrock Mine, Bangladesh. Journal of Business and Retail Management Research, Volume 02 Issue 1
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