Characteristics and identification of granite rockburst under true triaxial loading-unloading with different initial stresses based on a DEM two-stage structural model
October 2026
This study employed a two-stage structural model based on the discrete element method (DEM) to simulate granite rockbursts under true triaxial loading-unloading. By refining the determination method...
Mechanical properties and microstructure characteristics of vacuum sintered lunar simulant using nanoindentation
October 2026
To meet the requirements of lunar base construction and in-situ resource utilization (ISRU), this study applies multiple characterization techniques to examine the microstructure, mineral composition,...
Study on phase-transition-like characteristics and volume expansion model of weakly consolidated sandstone under triaxial cyclic loading and unloading
October 2026
In order to study the phase transformation characteristics and dilatation-related changes of weakly consolidated sandstones with different cementation degrees, the cyclic loading and unloading experiments...
Hybrid XGBoost - 3D FEA approach for predicitng bearing capacity of rectangular foundations on rock slopes
July 2026
This study investigates the bearing capacity of a sloping rock foundation beneath rectangular and, in particular, square footings. Additionally, the study proposes a novel hybrid machine learning approach,...
Locked segment of fault as earthquake barrier: Laboratory and field evidence of preseismic stress drop
July 2026
Natural fault systems exhibit significant geometric heterogeneity, where locked segments act as strong, unbroken regions that impede fault slip and influence seismic nucleation. This study integrates...
Simultaneous propagation of multiple hydraulic fractures in crystalline rock: A numerical investigation based on coupled fluid-solid discrete element framework
July 2026
The simultaneous multiple hydraulic fracturing treatment has been extensively employed in Enhanced geothermal systems (EGS) to increase the complexity and area of artificial fractures. However, the...
Insights of microstructures and lithofacies on fracture process zone of organic-rich shale
July 2026
The fracture process zone (FPZ) plays a critical role in determining the mechanical properties of shale,as a quasi-brittle material. In this study, the effects of microstructure on fracture process...
Reconstruction of laminated shale specimens through advanced physics-informed image processing
July 2026
Shale is distinguished from other rocks by its laminated and fissile nature, as it consists of many thin layers and easily splits into thin pieces along the bedding planes. A common approach in a geomechanical...
Investigation of nanoindentation for evaluating the cyclic loading-unloading mechanical properties of heterogeneous coal
July 2026
Exploring the meso-mechanical response of heterogeneous coal is crucial for understanding its macro mechanical behavior in coal mining, CO2 storage, and coal bed methane production. However, a key gap...
Experimental investigation on fatigue mechanical behavior and energy evolution characteristic of fine-grained marble under multilevel constant-amplitude cyclic loading
July 2026
This study systematically investigates the mechanical behavior and energy evolution mechanisms of marble under multilevel constant-amplitude cyclic loading through triaxial tests conducted at various...
Three-dimensional coupled simulation study on the reactivation mechanism and stability of faults under different fluid injection rate schemes
July 2026
The injection rate of fluid is a key engineering factor affecting the stability and reactivation potential of faults; however, the mechanism of injection-induced fault reactivation under the effect...
TBM penetration rate estimation using Rock Mass Rating (RMR) and machine specifications
July 2026
Rock mass classification systems, such as the Rock Mass Rating (RMR), are widely used to estimate tunnel boring machine (TBM) performance because RMR is relatively easy to apply and the system accounts...
Cross-scale friction analysis of rocks: Influences of mineral properties and interactions
July 2026
Macroscale instability of frictional behavior of rock arises from the heterogeneous distribution and dynamic accumulation effects of friction force between the soft- and hard- phase mineral grains....
Study on true triaxial stress-seepage law of sandstone under high temperature
July 2026
The environments of high temperature and high ground stress in the process of underground coal gasification and geothermal energy development will affect the seepage characteristics of rock strata....
Engineering challenges of deep-buried tunneling in the Alps and Himalayas
July 2026
The Himalayas and Alps, both shaped by Tethys Suture Zone evolution, manifest fundamentally different mechanical features throughout their geological development. Over the past century, the Alps have...
Experimental and Systematic Prediction of Compaction Characteristics of Cement-Stabilized Mine Wastes
Available online 20 May 2026
This study investigates the reuse of mining waste tailings in geotechnical engineering as sustainable stabilizing materials when combined with cement. Two types of tailings—limestone and phosphate limestone—were...
Study on Optimization of Roadway Layout for Self-Formed Roadways Without Coal Pillars Based on the Mining Influence Mechanism in Close-Distance Coal Seams
Available online 19 May 2026
This study investigates the roadway layout optimization of self-formed roadways without coal pillars (SFRCP) in close-distance coal seams. By integrating theoretical analysis, numerical simulation,...
Identifying Acoustic Emission Precursors for Spalling in Rock Tunnels using a Scale-Model Test
Available online 12 May 2026
Rock spalling is a type of brittle instability that occurs during tunnel excavation. Spalling degrades the rock mass, reducing its load-bearing capacity and compromising tunnel safety. Identifying precursors...
Trends in Calibrated Built-In 2D and 3D Finite Element Models of Fully Grouted Rebar Rockbolts and CT-Bolts
Available online 9 May 2026
In this research, fully grouted rebar (FGR) rockbolts and CT-Bolts are modelled in pre-yield axial pull conditions using the industry-common Finite Element Method (FEM) programs RS2 and RS3 by Rocscience....
Effects of loading rates and mine water immersion on the mechanical characteristics of coal under Brazilian test conditions
April 2026
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...
Integration of image and dipole sonic logs for identification of natural fractures and stress-induced anisotropy in Asmari reservoir (A case study, SW Iran)
April 2026
Borehole sonic dispersion analysis is a technique that provides valuable insights into the realm of borehole sonic interpretation. This research involves an analysis of shear-wave anisotropy and ultrasonic...
Recent advancements for cement grout diffusion mechanisms within rock fractures
April 2026
Understanding cement grout diffusion in rock fractures is crucial for rock engineering, yet grouting faces significant challenges due to fracture network heterogeneity and grout's complex non-Newtonian...
Integrative solution of stress evolution in overburden roof strata during the coal seam mining by application of complex variable functions methodology
April 2026
Large-scale roof collapse is a major dynamic hazard threatening the safe coal mine operations. Understanding the deformation and failure characteristics of overburden rock strata, as well as deciphering...
Fast marching method-based bent-ray tracing for three-dimensional velocity imaging in mines
April 2026
Three-dimensional (3D) seismic velocity imaging is crucial for understanding rock mass stress and structures in mining. Conventional straight-ray tomography suffers from ray-path mismatches with true...
Thermo-mechanical coupling in cracked granite: Influence of crack inclination on fracture behavior and temperature evolution
April 2026
Crack inclination angle (α) plays a critical role in the dynamic failure and thermo-mechanical coupling of granite, which is vital for rockburst monitoring and prevention. In this study, granite specimens...