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Keywords: contact surface
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Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-025
... strength of contact surface between rocks and concrete in the abutments. In this paper that is resulted from a series of in-situ direct shear tests on four concrete blocks prepared on the rocks inside an excavated gallery at the abutments, the shear strength parameters and peak and residual strengths...
Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-089
... ABSTRACT The purpose of this research is to study the earthquake's effect on segmental lining and to analyze stresses and displacements formed in contact surfaces (joints) between segments as a result of dynamic loading. The case study for this research is Alborz twin tunnels in the TEHRAN...

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