The phlogiston theory of rock mass classification: Philosophical and mathematical critique of ordinal data usage
July 2025
The widespread use of rock mass classification systems in engineering practice relies on mathematical operations and assumptions that violate fundamental principles of measurement theory. This paper...
Elastoplastic analysis of deep circular tunnels affected by blasting damage and hydraulic flow
July 2025
In drill and blast method, due to uncontrolled blasting operations, the blast-induced damaged zone (BIDZ) is formed, whose mechanical and hydraulic properties are altered. This zone affects the behavior...
Forecasting maximum magnitude of fluid-induced earthquakes: Bridging statistical extrapolation and physics-based forecasting
July 2025
The forecasing of maximum magnitude (Mmax) for fluid-induced seismicity is a critical challenge in risk management for geothermal energy development, unconventional hydrocarbon extraction, and wastewater...
Definition and classification of rockburst
July 2025
The rockburst is a violent failure in rock during mining and tunneling operations. Since tunnel constructions for hydropower and transportation purposes and mining operations in deep rock masses have...
Data-driven machine learning approaches for predicting the shear strength of rock joints
July 2025
Accurate prediction of the shear strength of rock joints is crucial for assessing the stability of civil and mining engineering projects. Traditional methods for determining the shear strength of rock...
A novel damage model on the acoustic emission characteristics of weakly cemented soft rock under alkaline water-enriched environment
Available online 18 July 2025
Mechanical properties of weakly cemented soft rock (WCSR) under alkaline water-enriched environment are vital to the stability of surrounding rock. The specimens were soaked in various chemical solutions,...
Tensile Failure and Ductile-to-Brittle Transition of Sandstone under Three-Dimensional Seepage Pressure
Available online 17 July 2025
After reservoir impoundment, fractures and pores in the rock mass serve as important pathways for seepage, and the resulting fluid pressure can easily trigger engineering issues such as slope instability...
Effects of loading rates and mine water immersion on the mechanical characteristics of coal under Brazilian test conditions
Available online 17 July 2025
The mechanical properties of coal pillars are crucial for evaluating the stability of underground water reservoirs in coal mines. This article examines the fracture mechanical behavior of coal in response...
An improved dual-strength reduction strategy of slope stability analysis using Hill Climbing Algorithm
Available online 10 July 2025
How to determine reduction strategy between cohesion (c) and internal friction angle (ϕ) is crucial for slope stability evaluation using the dual-strength reduction method (DSRM). Given that the slope...
Research on the effect of surface retaining elements on the dynamic load resistance of bolted rock
Available online 8 June 2025
The failure of support systems in deep coal mine roadways is a critical issue that hinders the development of deep coal resources. As a critical support element, the surface retaining element (SRE)...
Variable elastic anisotropy controls stress in shallow crown pillars
Available online 9 May 2025
As easily accessible natural resources become depleted, it is necessary to extract material from deeper levels and so mines may opt to develop a process of transition from open-pit to underground mining...
Enhancing production rates at El Teniente's black cave mine through optimizing HF hole distribution using discrete fracture network modeling and geostatistical simulation methods
April 2025
This study at the Esmeralda Mine, part of the El Teniente Division of CODELCO, investigates optimizing hydraulic fracturing (HF) holes’ spatial distribution to improve rock material production in one...
Research on narrow coal pillar width optimization and surround rock control in Shiquan mine
April 2025
To address the issue of severe coal resource waste and substantial deformation of the surrounding rock caused by the retention of coal pillars for protective lanes during the excavation along the void...
Prediction of rock fracture pressure in hydraulic fracturing with interpretable machine learning and mechanical specific energy theory
April 2025
Hydraulic fracturing stimulation technology is essential in the oil and gas industry. However, current techniques for predicting rock fracture pressure in hydraulic fracturing face significant challenges...
Evolution of mechanical and rockburst parameters of gypsum-like rock under fatigue stress disturbance
April 2025
To investigate the deterioration of mechanical properties in engineering rock masses subjected to fatigue stress, this study conducted laboratory tests, theoretical analysis, and model building to analyze...
A microscopic DEM investigation on fracture shearing characteristics of infilled grains with different geometrical shapes in rock discontinuities
April 2025
Rock discontinuities or faults often contain a layer of granular material. However, the evolutionary behavior (movement and breakage) of such infilled grains under shearing have not been comprehensively...
Velocity effects on slip evolution of faults subjected to constant and cyclic normal stress derived from laboratory tests
April 2025
Understanding the slip-style evolution of tectonic faults is important for exploring the earthquake mechanisms. To reveal the fault slip characteristics under a complex stress state, we conducted a...
Investigation on stress distribution and prestress loss model of prestressed anchor cables considering corrosion-induced debonding
April 2025
Corrosion can significantly impact the safety and stability of the entire structure by reducing the service life and load-bearing capacity of anchors. This study provides an in-depth examination of...
Theoretical and numerical investigation of the effects of in-situ stresses and dual-borehole combinations in eccentric decoupled charge blasting
April 2025
Eccentric decoupled charge (EDC) blasting is a widely used technique for rock fragmentation and tunnel excavation, yet the underlying rock damage mechanisms, particularly in relation to in-situ stresses...
Dynamic evolution of reservoir permeability and deformation in geothermal battery energy storage using abandoned mines
January 2025
Retasking existing subsurface abandoned mines as infrastructure for solar energy storage could be a feasible approach in overcoming the low thermal gradient present in shallow formations. In this work,...
Data-driven machine learning approaches for simultaneous prediction of peak particle velocity and frequency induced by rock blasting in mining
January 2025
The vibrations generated by rock blasting are a serious and hazardous outcome of these activities, causing harmful effects on the surrounding environment as well as the nearby residents. Both the local...
Three-dimensional numerical study of DTH bit-rock interaction with HPWJ downhole slotting: Influence of bit design and bottom hole geometric conditions on rock breaking efficiency in percussive drilling
January 2025
The EU H2020 ORCHYD project seeks to enhance drilling efficiency in hard rock environments, particularly for deep geothermal wells, by integrating innovative rock weakening techniques. In this context,...
Analysis of tunnel lining internal forces under the influence of S and P-waves: An analytical solution and quasi-static numerical method
January 2025
This paper employs analytical and pseudo-static approaches to analyze the tunnel response under the compression (P) and shear (S) waves. In the first step, Einstein and Schwartz’s method is revised...
Numerical modeling of the long-term poromechanical performance of a deep enhanced geothermal system in northern Québec
January 2025
This study numerically investigates the thermo-poromechanical effects in a Canadian geothermal reservoir caused by long-term fluid production and injection. Using finite element modeling, it explores...
The effects of staggered and non-staggered joints on the ultimate bearing capacity, load settlement behavior, and failure mechanism with the change of excavation depths
January 2025
Extensive research is available on excavation walls in soils. However, very few studies address their performance in rocks and jointed rock masses. This study aimed to investigate the effect of staggered...
