China University of Mining and Technology

Numerical Investigation of LPG Leakage Dispersion and Explosion Consequences in a Spherical Tank with Safety Walls

Abstract Liquefied petroleum gas (LPG) leakage from spherical tanks can generate near-ground flammable vapor clouds and subsequent fire and explosion hazards. A three-dimensional FLACS model of a 1000 m3 LPG spherical tank was established to investigate the effects of safety-wall...

Prediction of Joint Roughness Coefficient Using Metaheuristic-Optimized Random Forest Model

Reliable estimation of the joint roughness coefficient (JRC) is important for quantitative characterization of joint roughness and provides an important geometric parameter for subsequent joint shear strength assessment. However, single-parameter empirical models cannot fully cap...

An Adaptive Bounded Hybrid A* Planner for Autonomous Mining Trucks in Confined Unstructured Mining Environments

Automated valet-parking trajectory planning has been widely studied in structured environments, whereas its counterpart in unstructured environments remains insufficiently explored. The working face of an open-pit mine is a typical unstructured production environment, where auton...

Low‐Temperature Sodium‐Ion Batteries: Interfacial and Bulk Perspectives on Performance Limitations and Improvement Strategies

ABSTRACT Sodium‐ion batteries (SIBs) are attractive for low‐temperature energy storage because of their low cost and abundant resources. However, their low‐temperature performance still suffers from capacity decay, severe polarization, poor cycle stability, and increased sodium‐p...

Damage and Fracture Behavior of Granite, Sandstone, and Basalt Under Liquid Oxygen Blasting: Rock Property Effect and Failure Mechanism

ABSTRACT Liquid oxygen blasting is an efficient nonexplosive rock‐breaking method in geotechnical engineering, yet its rock fragmentation behavior and cross‐section formation mechanism remain unclear. This study systematically investigates the fragmentation characteristics of roc...

The Impact of Market Orientation and Patient Capital on New-Quality Productive Forces: An Empirical Study Based on the Mediating Effects of Green Technology Innovation

Based on A-share-listed manufacturing firms in China from 2012 to 2024, this paper obtains 11,626 firm-year observations after sample screening. We construct a market-orientation indicator via text mining and examine its association with new-quality productive forces, as well as...

Uncertainty Modeling and Risk Analysis of Mechanical Properties in Warm Frozen Clay for Frozen Soil Roadbed Stability

Abstract Ignoring the uncertainty of mechanical properties in frozen soil roadbed stability analysis may cause uneven settlement and cracking. Therefore, evaluating the uncertainty of frozen soil mechanical properties is essential for reliable engineering design. Considering that...

Multiscale Pore Architecture and Fractal Heterogeneity of Coal, Shale, and Tight Sandstone: An Integrated HMIP–N2/CO2 Adsorption–NMR Characterization Framework

Abstract Comprehensive characterization of multiscale pore structures in unconventional reservoirs is crucial for evaluating gas storage, migration pathways, and production potential. This study presents an integrated, multimethod investigation of Lower Jurassic low-rank coal, lo...

An ISM-MICMAC Approach to Identifying Barriers Hindering Smart Community Governance in China

Abstract Smart community governance (SCG) has encountered significant barriers, hindering the digitalization process inherent to modern communities. Nevertheless, current research lacks a comprehensive analysis of the barriers hindering the SCG and their interrelationships, there...

RAPC-Net: Residual-Aware Physical Consistency Network for Multi-Appliance NILM

Non-intrusive load monitoring (NILM) aims to estimate appliance-level power consumption from aggregate household measurements and provides an effective solution for fine-grained energy management. However, multi-appliance NILM remains challenging because the measured aggregate po...

Mechanism of coalburst triggered by thrust fault slipping based on field monitoring, indoor experiments and numerical simulation

Abstract Coalburst disasters induced by thrust fault slip frequently take place in underground coal mines and often lead to severe roadway damage and personnel casualties. However, the triggering mechanism of coalburst remains unclear. Combined with field monitoring, physical ana...

Synergistic Mechanisms of Bio-Based Polymers and Silica Nanoparticles in Foam-Based Biomass Dust Suppression: Experiments and MD Simulations

Abstract Dust explosions in biomass processing motivate the development of eco-friendly foam dust suppressants. This work formulates foams comprising zwitterionic surfactants, bio-based polymers (CMC, SA), and SiO2 nanoparticles and correlates macroscopic wetting, drainage, and d...

AbyssGeist "探渊索隐"——A Geoscience Foundation Model Project Proposal

AbyssGeist (探渊索隐) is a conceptual Geoscience Foundation Model project proposal developed around the integration of artificial intelligence, geophysical and geochemical exploration, geological knowledge, and mineral resource development. The project proposes a three-layer arch...

AbyssGeist "探渊索隐"——A Geoscience Foundation Model Project Proposal

AbyssGeist (探渊索隐) is a conceptual Geoscience Foundation Model project proposal developed around the integration of artificial intelligence, geophysical and geochemical exploration, geological knowledge, and mineral resource development. The project proposes a three-layer arch...

A directional instability criterion for surrounding rock of rectangular roadways driven by deviatoric stress gradient

Rectangular roadways in underground rock engineering frequently exhibit directional instability under non-uniform in-situ stress. Conventional criteria primarily focus on stress magnitude and plastic zone morphology, but fail to quantitatively characterize directional evolution i...

Effect of fire-source location on flame behavior and temperature distribution in subway carriages with multiple lateral openings

Urban rail transit has been widely adopted to alleviate surface traffic congestion. However, subway fire safety remains a critical concern because of the confined carriage space, high occupant density, and complex ventilation conditions. Most previous studies have focused on fire...

Development of an Automated Inflection Point Detection Algorithm for Deformation Rate Analysis

Abstract Accurate estimation of in situ stresses is essential for safe design of underground civil and mining engineering structures. Traditional in situ stress measurement methods often require extensive time, resources, and access to test location. Moreover, with these methods,...

Transformation of Ibuprofen- and Diclofenac-Loaded Organobentonites to Doped Carbons for Peroxide Production and Energy Storage

Ibuprofen- and diclofenac-loaded organobentonites are thermally converted to carbon-decorated bentonites and probed as materials for supercapacitors and peroxide production. TGA shows a ~40% mass loss in an inert atmosphere and a ~2% further reduction in air, with the diclofenac-...

Experimental Study on Temperature–Pressure Coupling Sensitivity and Burial Depth Response of Coal Permeability

The coupled effect of in situ temperature and stress complicates the permeability evolution of coal reservoirs, which restricts the exploration and evaluation of deep coalbed methane (CBM). Two high-rank coal samples were collected from the Sihe (SH) and Zhaozhuang (ZZ) mining ar...

A Multidimensional Framework for Diagnosing Streetscape Perception in Historic-District Renewal Using Street-View Imagery and Deep Learning

The renewal of historic districts needs to address human-centered issues, such as cultural expression, spatial experience, and visual comfort, at the street scale. However, existing assessment methods predominantly rely on field surveys, expert judgment, or individual visual indi...