A5088570929- Rock Mechanics and Modeling
- Landslides and related hazards
- Geotechnical and Geomechanical Engineering
- Geotechnical Engineering and Analysis
- Drilling and Well Engineering
- Tunneling and Rock Mechanics
- Grouting, Rheology, and Soil Mechanics
- Hydraulic Fracturing and Reservoir Analysis
- Underground infrastructure and sustainability
- Geotechnical Engineering and Underground Structures
- Transportation Safety and Impact Analysis
- Geomechanics and Mining Engineering
- Modular Robots and Swarm Intelligence
- Geophysical Methods and Applications
- Coal Properties and Utilization
- Geoscience and Mining Technology
- Smart Agriculture and AI
- Robotics and Automated Systems
- Geotechnical Engineering and Soil Mechanics
- Geotechnical Engineering and Soil Stabilization
- Structural Response to Dynamic Loads
- Advanced X-ray Imaging Techniques
- Vibration and Dynamic Analysis
- Engineering Structural Analysis Methods
- Civil and Geotechnical Engineering Research
Indian Institute of Technology Kharagpur
2025
Colorado School of Mines
2017-2024
Laboratoire d'Informatique de Paris-Nord
2024
Cornell University
2024
Phoenix (United States)
2023
Southern Illinois University Carbondale
2015-2016
Numerical back analysis is a valuable tool available to rock mechanics researchers and practitioners. Recent studies related methods focused primarily on applications of increasingly sophisticated optimization algorithms (primarily machine learning algorithms) problems. These have typically been applied relatively simple problems; however, more complex analyses continue be conducted through ad hoc manual trial-and-error processes. This paper provides review the basic concepts recent...
Although conventional coal mine designs are conservative regarding pillar strength, local failures such as roof-falls and bursts still affect safety operations. Previous studies have identified that discontinuous, layered roof materials some self-supporting capacity. This research is a preliminary step towards understanding these mechanics in coal-measure rocks. others considered broad conceptual models simplified analogs for behavior, this study presents unique numerical model more...
Underground mine pillars provide natural stability to the area, allowing safe operations for workers and machinery. Extensive prior research has been conducted understand pillar failure mechanics design layouts. However, limited studies (mostly based on empirical field observation small-scale laboratory tests) have considered pillar-support interactions under monotonic loading conditions of systems. This study used a series large-scale compression tests porous limestone blocks analyze rock...
Spalling of pillar ribs has been a major hazard in the mining industry for decades. In absence rib support guidelines, accidents have continued to occur recent years. Developing effective guidelines requires complete understanding complex damage mechanisms. Continuum models represent convenient tool analyzing this problem, but behavior such is dependent choice constitutive model. study, recently proposed model was used simulate fracturing process longwall chain at West Cliff mine. After...
Abstract This study numerically investigates the damage process in a granite using an inelastic multiminerallic block model two‐dimensional Universal Distinct Element Code. In addition to commonly considered calibration targets like uniaxial and triaxial strengths, tensile strength, Young's modulus, attention was paid reproduce additional attributes such as postpeak response, residual confinement‐dependent dilatancy minimize nonuniqueness potential of models. The fracture pattern...
Bonded block model (BBM) has shown potential in replicating rock mass behavior as well the rock–support interaction mechanism, but their practical application is limited to two dimensions due high associated computational demand. To allow for use of BBM simulating three-dimensional (3D) problems, this study proposes an integrated 3D continuum–two-dimensional (2D) discontinuum approach, context pillars. A cross-section a granite pillar was simulated using with load path from calibrated...
With recent advances in numerical modeling, design of underground structures increasingly relies on modeling-based analysis approaches. While modeling tools like the discrete element method (DEM) and combined finite-discrete (FDEM) are useful for investigating small-scale damage processes, continuum models remain primary practical tool most field-scale problems. The results obtained from such significantly dependent selection an appropriate yield criterion dilation angle. Towards improving...
Both room-and-pillar and longwall mining systems develop underground excavations whose stability must be ensured over their entire service life. Even though rock bolts have been extensively used as a support element in US coal mines for about 40 years, limited research has conducted quantifying its composite reinforcement effects. Recently, the authors suggested an approach to quantify effect of roof supports designated area based on critical failure strains tension, compression shear. This...