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)
Determination of Caving Hydraulic Radius of Rock Mass in Block Caving Method using Numerical Modeling and Multivariate Regression

B. Alipenhani; A. Majdi; H. Bakhshandeh Amnieh

Volume 13, Issue 1 , January 2022, , Pages 217-233


  Determining the hydraulic radius of the undercut in the block caving method is one of the key issues in this method. The hydraulic radius is directly related to the minimum caving span. In this research work, the rock mass cavability is investigated using the UDEC and 3DEC software. Since the factors ...  Read More

Determining Probability Distribution Functions of Rock Joint Geometric Properties

J. Zadhesh; A. Majdi

Volume 13, Issue 1 , January 2022, , Pages 281-308


  The mechanisms of deformation and failure of the structures in and on the jointed rock masses are often governed by the characteristics of the geometrical properties of joints. Since the joint geometry properties have a range of values, it is helpful to understand the distribution of these values in ...  Read More

An Analytical Method of Predicting Length of Grout Penetration in Jointed Rocks

M. M. Nazempour; A. Majdi

Volume 12, Issue 4 , October 2021, , Pages 1155-1175


  Prediction of the length of grout penetration and assessment of the groutability around the boreholes in the jointed rocks have a crucial effect on the planning and execution of grouting. Grout distribution in jointed rocks is a function of the geo-mechanical properties of rock mass, grout properties, ...  Read More

Determination of Hydraulic Jacking Mechanism and Maximum Allowable Grout Pressure during Grout Injection in Anisotropic Rocks

A. Majdi; M. Yazdani

Volume 12, Issue 2 , April 2021, , Pages 589-603


  The hydraulic jacking refers to the process of crack growth of the pre-existing joints in the rock mass under grout pressure above the minimum in-situ stress. Thus it is essential to understand the resistance behavior of the joints and maximum grout pressure. This paper describes a novel method for determining ...  Read More

3D Characterization of Uniaxial Compressive Strength of Transversely-Isotropic Intact Rocks

V. Maazallahi; A. Majdi

Volume 11, Issue 2 , April 2020, , Pages 629-641


  The uniaxial compressive strength (UCS) of intact rocks is one of the key parameters in the course of site characterizations. The isotropy/anisotropy condition of the UCS of intact rocks is dependent on the internal structure of the rocks. The rocks with a random grain structure exhibit an isotropic ...  Read More

Rock Mechanics
Simulating energy method for grout-induced crack analysis of rock structures at Chadormalu mine by extended finite element method

S. Ali Madadi; A. Majdi; M. H. Khosravi; A.R. Kargar

Volume 9, Issue 4 , October 2018, , Pages 999-1008


  Fracture mechanics is a vital component involved in studying the exact behavior of rock materials. Detection and assessment of the behavior of rock joints injected by grout plays an important role in numerical modelling in rock mechanic projects. The importance of mechanisms associated with initiation ...  Read More