Volume 13 (2022)
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)
CFD-based Modeling of Sarin Gas Dispersion in a Subway Station–A Hypothetical Scenario

M. Hosseini; H. Madani; K. Shahriar

Volume 13, Issue 1 , January 2022, , Pages 235-251


  The main purpose of this work is modeling the dispersion of the sarin gas in a subway station in a hypothetical scenario. The dispersion is modeled using the CFD approach. In the analysis of the environmental conditions of the underground spaces, the only factor that draws a distinction between a subway ...  Read More

Interaction of Excavated Tunnels by Earth Pressure Balance Machines and Sub-surface Obstacles; Case Study: Tehran Metro Line 7

D. Mohammadi; K. Shahriar; D. Parsapour

Volume 12, Issue 3 , July 2021, , Pages 799-814


  Tunneling in urban areas has always encountered many uncertainties, which if not considered in both analysis and design of the tunnels, will cause unexpected events during tunnel construction. Obstacles are among the most remarkable uncertainties in tunneling that affect the tunnel construction process. ...  Read More

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 , October 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

Effect of Segmental Joint on Internal Forces in Tunnel Lining under Seismic Loading by Numerical Method

Gh.H. Ranjbar; K. Shahriar; K. Ahangari

Volume 11, Issue 3 , July 2020, , Pages 737-751


  Although segmental tunnel linings are often used for seismic areas, the influence of segment joints on the segmental lining behavior under seismic loading has not been thoroughly considered in the literature. This paper presents the results of a numerical study investigating the effects of the rotational, ...  Read More

Method of Grading Subway Stations Based on Evacuation Capability: A Quantitative Method

M. Hosseini; H. Madani; K. Shahriar

Volume 11, Issue 2 , April 2020, , Pages 587-609


  Stations are the main components of the subway systems. Despite the progress in the construction and maintenance, stations have always been exposed to the natural and man-made disasters. In such incidents, the station’s evacuation capability has a direct relation with a passenger's life. Various ...  Read More

Rock Mechanics
Effect of segmental joint stiffness on tunnel lining internal forces under static conditions

Gh. H Ranjbar; K. Shahriar; K. Ahangari

Volume 10, Issue 4 , October 2019, , Pages 1031-1043


  According to the wide application of segmental lining in mechanized tunneling, recognizing the behavior of segmental lining joints is important in tunnels designing. In the structural analysis of the tunnel segmental lining, segmental joints can be considered as elastic joints, and their stiffness characteristics ...  Read More

Rock Mechanics
New empirical failure criterion for shale

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

Volume 10, Issue 1 , January 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
An optimal method to design reinforced concrete lining of pressure tunnels

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

Volume 9, Issue 4 , October 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
Presenting an experimental creep model for rock salt

M. B. Eslami Andargoli; K. Shahriar; A. Ramezanzadeh; K. Goshtasbi

Volume 9, Issue 2 , April 2018, , Pages 441-456


  During the recent decades, the design and construction of underground spaces into rock salt have been particularly regarded for storing petroleum fluids, natural gas, and compressed air energy, and also for disposing nuclear and chemical wastes. The rock salt hosting such spaces will be subjected to ...  Read More

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

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

Volume 9, Issue 1 , January 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

A boundary element analysis of crack-propagation mechanism of micro-cracks in rock-like specimens under a uniform normal tension

H. Haeri; A. R Khaloo; K. Shahriar; M. Fatehi Marji; P. Moaref vand

Volume 6, Issue 1 , January 2015, , Pages 73-93


  In this work, the mechanism for fracture of brittle substances such as rocks under a uniform normal tension is considered. The oriented straight micro-cracks are mostly created in all the polycrystalline materials resulting from the stress concentrations. The present work focuses on the interactions ...  Read More