Nonlinear Mechanical Analytical Model and Stochastic Analysis Method for Tunnel Longitudinal Performance Subjected to Fault Movement
Available online 19 December 2025
Clarifying the mechanisms by which soil variability influence the longitudinal response of tunnels is critical for accurately assessing the performance of tunnels traversing fault zones. However, the...
Large-scale mine experiments on hydraulic fracture propagation mechanism in fault-controlled reservoirs
Available online 19 December 2025
This study utilizes pioneering large-scale true triaxial experiments to investigate the hydraulic fracture propagation mechanisms in deep fault-controlled carbonate reservoirs. Synthetic specimens (2.0...
Experimental Study on Hydro-Mechanical Behavior and Damage Evolution in Tunnel Surroundings with Different Lithologies
Available online 18 December 2025
Understanding the mechanical properties of surrounding rocks is essential for the safe construction of tunnels. This study investigates dolomite and sandstone from the Yuxi section of the Central Yunnan...
Engineering Challenges of Deep-buried Tunneling in the Alps and Himalayas
Available online 18 December 2025
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 study on the dynamic evolution process of acoustic emission precursor information chain in the entire process of hard-rock failure
Available online 16 December 2025
A comprehensive understanding of rock failure precursors is essential for developing accurate early warning systems. A key research objective involves characterizing multi-stage rock failure precursors...
Developing Site-Specific Preconditioning Blast Designs for Ultra-Deep Shaft Sinking: A Case Study from the Onaping Depth Project
Available online 15 December 2025
This paper presents numerical modeling simulations that replicate the highly successful preconditioning blasting campaign used during the ultra-deep Onaping Depth shaft construction. The model was calibrated...
Study on Creep Characteristics and Constitutive Model of Damaged Shale: Based on the Impact of In-situ Methane Explosion
Available online 15 December 2025
Methane In-Situ Explosion Fracturing (MISEF) is an innovative technique for enhancing production in unconventional oil and gas reservoirs. It operates by precisely detonating pre-desorbed methane gas...
Experimental study on progressive failure process and crack evolution of confined red sandstone under impact loading
Available online 15 December 2025
Rock failure is a progressive process, initiating at the micro-scale and gradually evolving into macroscopic damage over time. While advances have been made in understanding the progressive failure...
Intelligent prediction of shear characteristics of rock joints
Available online 13 December 2025
Predicting the shear behaviour of rock joints is of primary importance in the stability analysis of rock-engineering structures. However, constitutive models of the shear characteristics of rock joints...
Mechanical behavior of tunnel excavation at great depth in coarse-grained soil-rock backfills: insights from FDM-DEM simulations
Available online 11 December 2025
Tunneling through deep backfills composed of coarse-grained soil-rock mixture (SRM) poses critical engineering challenges due to their loose structure, high porosity, and large block inclusions. These...
Computational Intelligence for Blast-Induced Backbreak Prediction in High-Stress Mining Environments
Available online 11 December 2025
Ensuring the stability of mine walls and floors is essential for maintaining pit safety and maximizing productivity. One of the key challenges in surface mining is predicting blast-induced backbreak,...
Mechanisms Influencing Timber Support Integrity for Rock Collapse Mitigation in Artisanal and Small-Scale Mining
Available online 11 December 2025
Catastrophic rock collapses pose a significant threat to the safety and sustainability of Artisanal and Small-scale Mining (ASM), endangering workers and the supply of critical minerals vital for technological...
Shear cracking process and micromechanism of intermittent joint: Insights from true triaxial shear test and PFC3D-GBM simulation
Available online 29 November 2025
Previous direct shear tests and simulations of structural planes primarily addressed slopes and shallow underground engineering. However, in deep engineering, the structural planes of the surrounding...
Simultaneous Propagation of Multiple Hydraulic Fractures in Crystalline Rock: A Numerical Investigation Based on Coupled Fluid-Solid Discrete Element Framework
Available online 20 November 2025
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...
Locked segment of fault as earthquake barrier: Laboratory and field evidence of preseismic stress drop
Available online 15 November 2025
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...
HYBRID XGBOOST - 3D FEA APPROACH FOR PREDICITNG BEARING CAPACITY OF RECTANGULAR FOUNDATIONS ON ROCK SLOPES
Available online 14 November 2025
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,...
Effect of anisotropic tunnel large-deformation control based on a prestressed constant-resistance cable: Insights from 2D-Finite-discrete element and Finite element method simulation
Available online 8 November 2025
Prestressed constant-resistance large-deformation anchor cable has been proved to be an effective technology to control the large-deformation disaster of deep soft rock tunnel. However, there are few...
Cemented soil-soil interface shear strength evaluation Ⅱ: Roughness impact and quantitatively practical model based on RQD
Available online 5 November 2025
The shear characteristics of cemented soil-soil interface with varying roughness, resulting from different construction techniques, significantly affect the stability and safety of related engineering...
3D characterization of fracture evolution and energy release in granite under static expansive loading using DIC, AE, and CT
Available online 3 November 2025
This study investigates the 3D fracture evolution and energy release in granite blocks containing single and dual holes under static expansive loads induced by soundless cracking demolition agents....
Dynamic Crack Initiation in Holed and Jointed Rock Masses: A Maximum Energy Release Rate Criterion and Parametric Influences
Available online 1 November 2025
Focusing on the dynamic fracture characteristics of rock masses containing holes and joints, this study investigates the influence of joint geometric parameters on the crack initiation angle based on...
Coupling effect of temperature and confining pressure on fracture toughness of transversely isotropic shale: Insights from a thermal-mechanical DEM model
October 2025
The coupling effect of temperature and confining pressure on fracture toughness is a critical issue in deep shale gas development that cannot be overlooked. Field and laboratory studies have shown that...
The influence of faults on adjacent rock mechanical behavior and acoustic emission characteristics: A case study of the xianshuihe fault zone
October 2025
Tensile strength is a crucial parameter for assessing rock stability and fracture characteristics, which play a significant role in the prediction and engineering design of geohazards. However, fault...
Cemented soil-soil interface shear strength evaluation I: Size effect and characteristic experimental size quantization
October 2025
The shear strength of cemented soil-soil interface is affected by the size effect of experimental sample. With the advancing density of urban underground space and the wide application of grouting reinforcement...
A logistic-based constitutive model for rocks under uniaxial compression considering the initial damage recovery characteristics
October 2025
The damage process is categorized into two phases from the perspective of crack evolution, damage recovery induced by the closure of primary cracks and damage growth induced by the propagation of new...
Experimental study on the mechanical properties of 1G-NPR cable anchored rock with AE-DIC method
October 2025
The study investigates the mechanical properties of 1G-NPR (Negative Poisson's Ratio) cable-anchored sandstone under uniaxial compression, employing Acoustic Emission (AE) and Digital Image Correlation...