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)
Rock Mechanics
On Analytic Solutions of Elastic Net Displacements around a Circular Tunnel

M. Hazrati Aghchai; P. Moarefvand; H. Salari Rad

Volume 11, Issue 2 , April 2020, , Pages 419-432


  Displacements around a tunnel, occurring as a result of excavation, consist of the elastic and plastic parts. In this paper, we discuss the elastic part of displacements as a result of excavation, called net displacement. In general, the previous analytical solutions presented for determining the displacements ...  Read More

Rock Mechanics
Study of Damaged Zone around Circular Opening Using Acoustic Emission Technique

A. Dadi-givshad; M. Ahmadi; H. R. Nejati

Volume 11, Issue 2 , April 2020, , Pages 433-451


  One of the methods used to investigate the damaged zone in rock structure is the acoustic emission method. This method is based on receiving the elastic waves that are produced by deformation and cracking of the rock mass around the underground excavation. In this research, a study is conducted on the ...  Read More

Rock Mechanics
A New Stability Approach using Probabilistic Profile along Direction of Excavation

A. Turanboy; E. Ülker; C. Burak Küçüksütçü

Volume 11, Issue 1 , January 2020, , Pages 1-20


  Estimation of the possible instability that may be encountered in the excavation slope(s) during the planning and application steps of the rock excavation processes is an important issue in geoengineering. In this paper, a modelling method is presented for assessing the probability of wedge failure involving ...  Read More

Rock Mechanics
A review of Rock Burst’s Experimental Progress, Warning, Prediction, Control and Damage Potential Measures

Sh. Bacha; Z. Mu Long; A. Javed; Sh. Al Faisal

Volume 11, Issue 1 , January 2020, , Pages 31-48


  Rock burst is the most attractive and hot research area in geomechanics, mining, and civil engineering due to the increasing depth of mines and construction of deep underground structures. It has also been a severe problem in ground control measures in the last few decades. Many studies have been done ...  Read More

Rock Mechanics
Stability Analysis of Salt Cavern Gas Storage Using 2D Thermo-Hydro-Mechanical Finite-Element Software

A. Asgari; A. Ramezanzadeh; Seyed M. E. Jalali; B. Brouard

Volume 11, Issue 1 , January 2020, , Pages 77-97


  Ensuring the stability and integrity of underground gas storage salt caverns is a very complicated subject due to the non-linear and time-dependent behavior of rock salts under complicated thermal and mechanical loading conditions. For this reason, pressure and temperature fluctuations in the caverns ...  Read More

Rock Mechanics
Investigation of Bishop’s and Janbu’s Models Capabilities on Slope Stability Problems with Special Consideration to Open-Pit Mining Operations

A. Alikhani; M. Taheri Moghadder; H. Mohammadi

Volume 11, Issue 1 , January 2020, , Pages 161-170


  One of the most effective parameters in economics of open-pit mines is the pit slope angle, so that the slope angle more than the optimum value increases the probability of a large failure in the pit wall and the slope angle less than the optimum value leads to increasing stripping ratio and reducing ...  Read More

Rock Mechanics
Predicting Unconfined Compressive Strength of Intact Rock Using New Hybrid Intelligent Models

M. Rezaei; M. Asadizadeh

Volume 11, Issue 1 , January 2020, , Pages 231-246


  Bedrock unconfined compressive strength (UCS) is a key parameter in designing thegeosciences and building related projects comprising both the underground and surface rock structures. Determination of rock UCS using standard laboratory tests is a complicated, expensive, and time-consuming process, which ...  Read More

Rock Mechanics
Numerical Modeling of Rock Slopes with a Potential of Block-Flexural Toppling Failure

H. Sarfaraz; M. Amini

Volume 11, Issue 1 , January 2020, , Pages 247-259


  One of the most important instabilities of rock slopes is toppling failure. Among the types of toppling failure, block-flexural failures are more common instability which occurs in nature. In this failure, some rock blocks break because of tensile stresses, and some overturn under their weights, and ...  Read More

Rock Mechanics
Numerical Modelling of Backfill Grouting Approaches in EPB Tunneling

L. Nikakhtar; Sh. Zare; H. Mirzaei Nasir Abad

Volume 11, Issue 1 , January 2020, , Pages 301-314


  One of the main issues involved during tunnel construction with tunnel boring machines is the tail gap grouting. This gap is between the external diameter of tunnel lining and the excavation boundary that is filled with high-pressure grouting materials. In this work, three different approaches of gap ...  Read More

Rock Mechanics
Development of a GEP model to assess CERCHAR abrasivity index of rocks based on geomechanical properties

M. H. Kadkhodaei; E. Ghasemi

Volume 10, Issue 4 , October 2019, , Pages 917-928


  The CERCHAR abrasivity test is very popular for determination of rock abrasivity. An accurate estimation of the CERCHAR abrasivity index (CAI) is useful for excavation operation costs. This paper presents a model to calculate CAI based on the gene expression programming (GEP) approach. This model is ...  Read More

Rock Mechanics
Effects of number of freeze-thaw cycles and freezing temperature on mode I and mode II fracture toughness of cement mortar

K. Abdolghanizadeh; M. Hosseini; M. Saghafiyazdi

Volume 10, Issue 4 , October 2019, , Pages 967-978


  Natural and artificial materials including rocks and cement-based materials such as concrete and cement mortar are affected both physically and chemically by various natural factors known as weathering factors. The freeze-thaw process, as a weathering factor, considerably affects the properties of rocks ...  Read More

Rock Mechanics
A numerical analysis of effect of segmental lining joints on tunnel support internal forces under seismic loading

I. Kheyrandish; M. Ahmadi; H. Jahankhah

Volume 10, Issue 4 , October 2019, , Pages 979-999


  During an earthquake, the better performance of segmental tunnel lining, compared to the continuous in-cast concrete lining, is generally related to the joints between segments. In order to better understand the influence of the segment joints, their effect on the internal forces induced in tunnel lining ...  Read More

Rock Mechanics
Numerical analysis of slide-head-toppling failure

H. Sarfaraz; M. H. Khosravi; M. Amini

Volume 10, Issue 4 , October 2019, , Pages 1001-1011


  In layered and blocky rock slopes, toppling failure is a common mode of instability that may occur in mining engineering. If this type of slope failure occurs as a consequence of another type of failure, it is referred to as the secondary toppling failure. “Slide-head-toppling” is a type ...  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
Performance evaluation of chain saw machines for dimensional stones using feasibility of neural network models

J. Mohammadi; M. Ataei; R. Kakaie; R. Mikaeil; S. Shaffiee Haghshenas

Volume 10, Issue 4 , October 2019, , Pages 1105-1119


  Prediction of the production rate of the cutting dimensional stone process is crucial, especially when chain saw machines are used. The cutting dimensional rock process is generally a complex issue with numerous effective factors including variable and unreliable conditions of the rocks and cutting machines. ...  Read More

Rock Mechanics
Fractal-wavelet-fusion-based re-ranking of joint roughness coefficients

M. Lotfi; B. Tokhmechi

Volume 10, Issue 4 , October 2019, , Pages 1121-1133


  Nowadays, Barton’s Joint Roughness Coefficients (JRC) are widely used as the index for roughness and as a challenging fracture property. When JRC ranking is the goal, deriving JRC from different fractal/wavelet procedures can be conflicting. Complexity increases when various rankings outcome from ...  Read More

Rock Mechanics
Combining fuzzy RES with GA for predicting wear performance of circular diamond saw in hard rock cutting process

M. Akhyani; R. Mikaeil; F. Sereshki; M. Taji

Volume 10, Issue 3 , July 2019, , Pages 559-574


  Predicting the wear performance of circular diamond saw in the process of sawing hard dimensional stone is an important step in reducing production costs in the stone sawing industry. In the present research work, the effective parameters on circular diamond saw wear are defined, and then the weight ...  Read More

Rock Mechanics
Risk management in urban tunnels using methods of game theory and multi-criteria decision-making

M. Nikkhah; M. A. Ghasvareh; N. Farzaneh Bahalgardi

Volume 10, Issue 3 , July 2019, , Pages 597-611


  In general, underground spaces are associated with high risks because of their high uncertainty in geotechnical environments. Since most accidents and incidents in these structures are often associated with uncertainty, the development of risk analysis and management methods and prevention of accidents ...  Read More

Rock Mechanics
Impact of gasoline contamination on mechanical behavior of sandy clay soil

M. H. Askarbioki; F. Kargaran Bafghi; M. Mokhtari; M. Khaleghi

Volume 10, Issue 2 , April 2019, , Pages 389-399


  Oil leakage causes soil contamination and induces changes in the physical and mechanical properties of soils. In areas contaminated with oil products such as gasoline, the implementation of civilian operations requires determination and prediction of soil behavior in the existing conditions. In this ...  Read More

Rock Mechanics
Hydraulic fracture propagation: analytical solutions versus Lattice simulations

E. Bakhshi; V. Rasouli; A. Ghorbani; M. Fatehi Marji

Volume 10, Issue 2 , April 2019, , Pages 451-464


  In this work, we used a grain-based numerical model based on the concept of lattice. The modelling was done to simulate the lab experiments carried out on the mortar samples. Also the analytical solutions corresponding to the viscosity-dominated regime were used to estimate the fracture length and width, ...  Read More

Rock Mechanics
Effect of large blocks position on stability analysis of block-in-matrix slopes

E. Khorasani; M. Amini; M. F. Hossaini

Volume 10, Issue 2 , April 2019, , Pages 465-477


  Bimrocks are complex geomaterials that are defined as mixtures of rocks composed of geotechnically significant blocks within a matrix of finer texture. Bimslopes are made from bimrocks and are usually seen in weathered and shallow environments. Some characteristics of blocks affecting the strength of ...  Read More

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

K. Bour; K. Goshtasbi

Volume 10, Issue 2 , April 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
Bayesian prediction of rotational torque to operate horizontal drilling

H. Fattahi; N. Zandy Ilghani

Volume 10, Issue 2 , April 2019, , Pages 507-515


  Horizontal directional drilling is usually used in drilling engineering. In a variety of conditions, it is necessary to predict the torque required for performing the drilling operation. Nevertheless, there is presently not a convenient method available to accomplish this task. In order to overcome this ...  Read More

Rock Mechanics
Efficiency of seismic wave velocity and electrical resistivity in estimation of limestone rock mass quality indices (Q, Qsrm) (Case study: Asmari formation, SW Iran)

Seyed M. Fatemi Aghda; M. Kianpour; M. Talkhablou

Volume 10, Issue 2 , April 2019, , Pages 529-541


  In this research, the relationship between P-wave velocity (Vp) and Electrical Resistivity (ER) parameters with rock mass quality indices is investigated; parameters such as rock mass quality classification (Q) and modified system for sedimentary rocks, known as Qsrm. For making predictive models, about ...  Read More

Rock Mechanics
Performance evaluation of gang saw using hybrid ANFIS-DE and hybrid ANFIS-PSO algorithms

A.R. Dormishi; M. Ataei; R. Khaloo Kakaie; R. Mikaeil; S. Shaffiee Haghshenas

Volume 10, Issue 2 , April 2019, , Pages 543-557


  One of the most significant and effective criteria in the process of cutting dimensional rocks using the gang saw is the maximum energy consumption rate of the machine, and its accurate prediction and estimation can help designers and owners of this industry to achieve an optimal and economic process. ...  Read More