Volume 12 (2021)
Volume 11 (2020)
Volume 10 (2019)
Volume 9 (2018)
Volume 8 (2017)
Volume 7 (2016)
Volume 6 (2015)
Volume 5 (2014)
Volume 4 (2013)
Volume 3 (2012)
Volume 2 (2011)
Volume 1 (2010)
1. A New Technical and Economic Model to Calculate Specific Charge and Specific Drilling Using Hole Diameter, Bench Height, Uniaxial Compressive Strength, and Joint Set Orientation

A. Ghanizadeh Zarghami; K. Shahriar; K. Goshtasbi; A. Akbari Dehkharghani

Volume 11, Issue 4 , Autumn 2020, , Pages 991-1005


  Calculation of the specific charge and specific drilling before a blasting operation plays a significant role in the design of a blasting pattern and the reduction of the final extraction cost of minerals. In this work, the information from the Sungun, Miduk and Chah-Firouzeh copper mines in Iran was ...  Read More

2. A Numerical Investigation of TBM Disc Cutter Life Prediction in Hard Rocks

M. Zahiri; K. Goshtasbi; J. Khademi Hamidi; K. Ahangari

Volume 11, Issue 4 , Autumn 2020, , Pages 1095-1113


  There is a direct relationship between the efficiency of mechanized excavation in hard rocks and that of disc cutters. Disc cutter wear is an important effective factor involved in the functionality of tunnel boring machines. Replacement of disc cutters is a time-consuming and costly activity that can ...  Read More

Rock Mechanics
3. Study of convergence confinement method curves considering pore-pressure effect

K. Bour; K. Goshtasbi

Volume 10, Issue 2 , Spring 2019, , Pages 479-492


  The design of underground spaces is mainly carried out using empirical, analytical, and numerical methods. The convergence confinement method (CCM) is an analytical technique that is widely utilized in analyzing the stability of underground spaces. However, the main challenge in the stability analysis ...  Read More

Rock Mechanics
4. New empirical failure criterion for shale

S. Moshrefi; K. Shahriar; A. Ramezanzadeh; K. Goshtasbi

Volume 10, Issue 1 , Winter 2019, , Pages 287-304


  A new failure criterion was presented to predict the ultimate strength of shale under the triaxial and polyaxial state of stress. A database containing 93 datasets was obtained from the results of the uniaxial, triaxial, polyaxial compressive tests, an indirect tensile test was collected from reliable ...  Read More

Rock Mechanics
5. An optimal method to design reinforced concrete lining of pressure tunnels

E. Dadashi; A. Noorzad; K. Shahriar; K. Goshtasbi

Volume 9, Issue 4 , Autumn 2018, , Pages 829-837


  The utilization of the lining type in pressure tunnels is highly dependent on the geological and hydraulic conditions. There are two types of lining, namely concrete and steel lining but steel lining is one of the most expensive arrangements. To decrease the length of steel lining in these tunnels, the ...  Read More

Rock Mechanics
6. Prediction of ultimate strength of shale using artificial neural network

S. Moshrefi; K. Shahriar; A. Ramezanzadeh; K. Goshtasbi

Volume 9, Issue 1 , Winter 2018, , Pages 91-105


  A rock failure criterion is very important for prediction of the ultimate strength in rock mechanics and geotechnics; it is determined for rock mechanics studies in mining, civil, and oil wellborn drilling operations. Also shales are among the most difficult to treat formations. Therefore, in this research ...  Read More