Numerical and experimental studies of the natural mixing behavior between an uncemented paste backfill and dumped waste rock in stopes from laboratory toward field conditions. Part I: Calibration and validation of a numerical model
Available online 14 November 2025
Underground mining operations generate large volumes of waste rock (WR). Transporting this material to the surface requires significant energy and incurs operational costs. As an alternative, WR can...
Dynamic Responses of Coal-Rock-Bolt Composite with Axial Pre-stress and Confining Pressure
Available online 13 November 2025
The stability of coal-rock-bolt composite (CRB) structures is critical in deep coal mining, particularly concerning damage mechanisms under combined static and dynamic loading conditions. This study...
Improving Deconvolution Reliability in Well Test Analysis with an Automated Objective Function
Available online 13 November 2025
Deconvolution is a mathematical technique that eliminates the effects of production rate variations in pressure transient data, enabling the recovery of a smoother pressure signal extended across both...
Numerical study on the mechanism of tool impact fragmentation in heterogeneous rock under confining pressure
Available online 10 November 2025
To address the problems of damage observation and stress extraction during the impact breaking of granite by tools under confining pressure, a numerical model for the fragmentation of heterogeneous...
Casing damage in oil and water wells: Causes and prevention
Available online 10 November 2025
Casing damage represents a persistent and multifaceted challenge in oil and gas development, often manifesting as structural deformation, rupture, or seal failure. These issues not only compromise well...
A review of the geological characterization, classification, modeling, and case studies of anisotropic rock masses
Available online 31 October 2025
Rock anisotropy caused by inherent structures like bedding, foliation, and micro-fractures directly influences strength, deformability, and stress distribution variations. These directional changes...
Influence of initial stress difference on the hard rock fracture mechanism under stepwise unloading during large high-stress underground powerhouse layered excavation
Available online 28 October 2025
With the continuous advancement of deep resource exploitation and underground engineering construction, the mechanical behavior and failure mechanisms of hard rock under stepwise unloading during Layered...
Reservoir heterogeneity and its role in long-term CO₂ storage performance: A case study of Air Benakat formation
Available online 10 October 2025
Indonesia’s strategy for attaining net-zero emissions by 2050 is contingent upon carbon capture and storage (CCS). The long-term CO₂ storage performance of Air Benakat formation in the South Sumatra...
Three-dimensional deformation response of cement stone under true triaxial compression
August 2025
Three-dimensional deformation properties of cement stone are crucial for the stability and safety of shafts. To explore these properties, a series of true triaxial tests adopting common loading path...
Generation of and countermeasures against time-delayed rockbursts
August 2025
Time-delayed rockbursts abruptly release huge energy, characterized by suddenness, randomness, and destructiveness, leading to substantial damage to both lives and property. This study explores the...
Simulation of progressive notch failure in deep bored raises using an iterative approach in FLAC3D
August 2025
The study examines empirical and numerical modeling methods that can be used to predict the depth of notch failure in bored raises excavated for Glencore’s Onaping Depth project within the Craig Mine...
Dynamic fracture behavior of rock tunnel under impact loading: Insights from experiments and peridynamic simulations
August 2025
The dynamic response of fractured rock masses with tunnel-like holes under impact loading is critical for ensuring the stability of underground engineering structures. This study investigates the interplay...
Geothermal energy and tiered synergistic mining of geothermal energy and minerals: Advantages, issues, and paths
August 2025
Geothermal resources, especially hot dry rock (HDR), hold the unparalleled potential to decarbonize energy systems and bolster the global clean energy transition. Despite five decades of development,...
Theories and applications of FRACOD – A fracture mechanics approach to modern rock engineering problems
August 2025
Rock failure is often governed by the initiation, propagation, and coalescence of fractures, particularly in hard rocks where fracturing, rather than plastic deformation, is the dominant failure mechanism....
Infrared thermal image detection method of stressed sandstone fracture based on deep learning
Available online 26 July 2025
Under stress, multiple cracks in the localized damaged zones in mine rock masses will expand and connect, which can lead to the rock mass instability and failure. Rapid, accurate identification of cracks...
Calculation model of overburden pressure of large diameter mounded storage tanks under different overburden slope angles
Available online 21 July 2025
Hazardous chemical horizontal tanks are widely used owing to their reliable storage capacity. To guarantee the safety and concealment of horizontal tanks, overburden is used to achieve effective isolation...
Concept to proof long-term safety of abandoned salt mines by hydro-mechanical coupled simulations with FLAC3D and Ansys Fluent
Available online 9 July 2025
Evaluation and prediction of the long-term behavior of abandoned mines have to consider complex interactions of different physical processes. The hydro-mechanical coupling plays an important role for...
An integrated intelligent long-term device for the borehole monitoring of deformation and evolution of fractures in rock masses
Available online 9 July 2025
To solve the problems of complex operation, low efficiency, and lagging information collection in rock mass disaster monitoring, an integrated monitoring device is developed, which can simultaneously...
Multidimensional thorough perception system for surrounding rock disasters in underground engineering and its application
Available online 2 July 2025
The excavation process in large underground engineering projects faces the challenges of various disasters, and safety monitoring is an important method for addressing these challenges. To ensure the...
Damage and control of mining surface deformation: Research status, hot spots and trends
Available online 1 July 2025
In order to master the research status, hotspots and trends of mining surface deformation (MSD) in metal mines, exploring the green and sustainable development path of mines, 2241 articles in the Web...
Comparison of rock spalling evaluation in underground openings: Uncertainty-based mathematical model and empirical method
May 2025
Rock spalling, considered an underground geological hazard that usually occurs after excavation in hard rock, threatens the safety of on-site operators and equipment. This study used an objective uncertainty-based...
Mechanics and nonlinear crack evolution of fractured sandstone under triaxial stress
May 2025
The mechanical behavior of fractured rock mass is significantly different from that of intact rock mass, and it is of great significance to study the mechanical response and damage law of crack rock...
Mitigating shale swelling in deep drilling: Novel natural deep eutectic solvent vs hybrid additives system
May 2025
Shale instability during shale drilling poses significant challenges that require effective additives to control swelling and enhance water-based drilling fluids. This study investigates the effectiveness...
Process system modelling of gas injection characteristics for underground CAES
May 2025
Renewable energies including solar and wind are intermittent, causing difficulty in connection to conventional power grids due to instability of output duty. Compressed air energy storage (CAES) in...
Numerical study on failure and instability of slender rock columns: Synergistic effects of lateral pressure, height-to-width ratio, and material strength
May 2025
Columnar jointed rock mass (CJRM) combines and mosaic of slender rock columns with different height-to-width (H/W) ratios. Revealing the correlation of the mechanical behavior of individual rock columns...