List of products by author: T. Afshar

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  Estimation of Rock Load for Tunnels Excavated in Different Rock Masses

  Abstract: Collapses in roof and less frequently in walls and face often take place due to inappropriate estimation of rock load. This study offers a review of the main factors affecting rock load to evaluate the capabilities of the existing models for prediction of ground pressure acting against installed support in underground excavations. Rock mass classifications such as GSI, RMR, as well as tunnel...

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