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....
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...
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...
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...
Analysis of tunnel water inrush accidents induced by stratum collapse models
May 2025
As tunnel engineering progresses, the complexity of geological strata and the presence of water bodies beneath tunnels have exacerbated the risk of water inrush incidents. Mutation theory is utilized...
Practice and validation of inversion of seismic source localisation based on genetic algorithm
February 2025
As the mining depth of coal resources increases, resulting in frequent mine earthquakes during mining. In this study, the rolling window ratio method is firstly chosen as the seismic phase recognition...
Role of feature importance in geomechanical classification of rock slopes
February 2025
Rock slope along motorways in the Higher Himalayan terrains are prone to various types of failure. In order to effectively mitigate these failures, a thorough assessment of rock mass behavior is entailed....
Metaheuristic multi-objective optimization-based microseismic source location approach with anisotropic P-wave velocity field
February 2025
Rockburst is a common dynamic geological hazard, frequently occurring in underground engineering (e.g., TBM tunnelling and deep mining). In order to achieve rockburst monitoring and warning, the microseismic...
Quantifying the mechanical properties of coal matrix and cleat using digital image correlation method
February 2025
Coal mass consists of matrices and cleats, which exhibits significant difference in mechanical properties, such as uniaxial compressive strength and Young's modulus. Understanding this difference is...
Thermal performance of CO2 energy piles: A comparison with water
February 2025
Geothermal energy piles (GEPs) buried into the deep underground are typically integrated with the circulating pipe inside the piles, where the most common heat transfer fluid (HTF) is water. Liquified...