Quantitative characterization of hydraulic fractures propagating through rock layers in shale-sandstone interbedded formation
Available online 11 June 2026
The special geological conditions of shale-sandstone interbedded reservoirs pose great challenges to fracturing design. Insufficient understanding of their hydraulic fracturing behavior can easily lead...
Experimental investigations on tensile mechanical behavior and real-time thermal damage analysis of granite subjected to high temperature
Available online 1 June 2026
Understanding the tensile mechanical characteristics and damage mechanisms of granite suffering thermal loading is of vital significance to the construction and safe operation of various deep underground...
An integrated intelligent long-term device for the borehole monitoring of deformation and evolution of fractures in rock masses
May 2026
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...
Numerical study on the mechanism of tool impact fragmentation in heterogeneous rock under confining pressure
May 2026
To address the problems of damage observation and stress extraction during the impact breaking of granite by tools under confining pressure, a numerical model for the fragmentation of heterogeneous...
Dynamic responses of coal-rock-bolt composite with axial pre-stress and confining pressure
May 2026
The stability of coal-rock-bolt composite (CRB) structures is critical in deep coal mining, particularly concerning damage mechanisms under combined static and dynamic loading conditions. This study...
Mechanism of transient phase transition in liquid oxygen with different absorbent media
May 2026
This study captures transient phase change reaction images of dual liquid oxygen charges with different absorbent media in the same frame using a high-speed camera. Based on grayscale image temporal...
Insight into undercut-induced ground deformations in cave mines
May 2026
As underground cave mines transition to greater depths, they face the unavoidable challenge of managing stress-driven instabilities on the extraction level, particularly those resulting from high abutment...
A micromechanics-based multiscale modeling of heterogeneous rocks with a complex microstructure
May 2026
For the micromechanical analysis of heterogeneous materials, this study develops a new macroscopic yield criterion tailored to composites exhibiting a porous matrix-inclusion microstructure. At the...
Analysis of the influence mechanisms of key operational parameters on underground hydrogen storage
Available online 28 May 2026
Underground hydrogen storage (UHS) is an emerging method to mitigate energy waste caused by the intermittency of renewable energy sources. Currently, the practical application of UHS in real sites remains...
Application of soft computing methods in underground mine stability: A PRISMA-based systematic review
Available online 15 May 2026
Geological uncertainties make the prediction of rock mass behavior highly challenging, emphasizing the need for continuous advances in excavation stability and risk mitigation. Soft computing algorithms,...
Microseismic characteristics of a protective layer working face and roof pre-splitting prevention technology in high-risk areas
Available online 29 April 2026
To reveal the role of protective layers in the prevention and control of rockburst during the mining of lower coal seams, based on the microseismic monitoring data of the entire mining process of the...
Tunnel crown settlement prediction based on CEEMDAN and BWO-optimized LSTM
Available online 28 April 2026
The nonlinear and nonstationary deformation of the surrounding rock under complex geological settings makes tunnel crown settling prediction highly challenging. To deal with this issue, this study proposes...
A caprock integrity assessment to optimize CO2 storage using coupled geomechanics: A case study of the Angostura Field
Available online 7 April 2026
Long-term storage of carbon dioxide (CO2) in depleted hydrocarbon reservoirs or deep saline aquifers heavily depends on the sealing performance of the caprock. Therefore, it is crucial to evaluate the...
Multidimensional thorough perception system for surrounding rock disasters in underground engineering and its application
February 2026
The excavation process in large underground engineering projects faces the challenges of various disasters, and safety monitoring is an important method for addressing these challenges. To ensure the...
Infrared thermal image detection method of stressed sandstone fracture based on deep learning
February 2026
Under stress, multiple cracks in the localized damaged zones in mine rock masses will expand and connect, which can lead to the rock mass instability and failure. Rapid, accurate identification of cracks...
Casing damage in oil and water wells: Causes and prevention
February 2026
Casing damage represents a persistent and multifaceted challenge in oil and gas development, often manifesting as structural deformation, rupture, or seal failure. These issues not only compromise well...
Improving deconvolution reliability in well test analysis with an automated objective function
February 2026
Deconvolution is a mathematical technique that eliminates the effects of production rate variations in pressure transient data, enabling the recovery of a smoother pressure signal extended across both...
Numerical and experimental studies of the natural mixing behavior between an uncemented paste backfill and dumped waste rock in stopes from laboratory toward field conditions. Part I: Calibration and validation of a numerical model
February 2026
Underground mining operations generate large volumes of waste rock (WR). Transporting this material to the surface requires significant energy and incurs operational costs. As an alternative, WR can...
An innovative approach for oil well bottomhole pressure forecasting using Kolmogorov-Arnold Neural Networks (KANs): A case study in an offshore oilfield
February 2026
This study introduces a novel method for bottomhole pressure (BHP) prediction utilizing the Kolmogorov-Arnold Network (KAN) machine learning algorithm. The KAN model is an interpretable neural network...
A machine learning based attitude control model for open-type TBMs on the spiral ramp of Beishan underground research laboratory
Available online 26 February 2026
Precise attitude control of Tunnel Boring Machines (TBM) is critically important for ensuring tunneling quality and safety, especially in tunnels with steep slopes, long curves, or small turning radii....
Numerical and experimental studies of the natural mixing behavior between an uncemented paste backfill and dumped waste rock in stopes from laboratory toward field conditions. Part II: Application and prediction of the validated and calibrated numerical model
Available online 19 January 2026
Directly dumping waste rocks (WR) underground produced into mine stopes being filled with cemented paste backfill offers several advantages. However, this practice can also present certain risks, especially...
Numerical simulation on the effect of cold shock on the initiation and propagation of microcracks in granite with different grain sizes
Available online 14 January 2026
To clarify how grain size affects the thermal damage behavior of granite subjected to cold shock, the hybrid finite-discrete element method (HFDEM) was applied to establish granite numerical models...
Response induced by transient blasting or seismic P-wave around a diversion tunnel with an imperfect rock-liner interface
Available online 13 January 2026
The work focuses on transient response of a deep-buried circular lined diversion tunnel with an imperfect rock-liner interface, which is full of water, subjected to an aperiodic blasting or seismic...
A study on the safety of nuclear waste isolation in claystone under coupled hydro-mechanical-seepage processes: An engineering geology perspective based on a generalized numerical model
Available online 16 December 2025
Claystone formations, such as France’s Callovo-Oxfordian (COx) claystone, Switzerland’s Opalinus (OPA) claystone and Belgium’s Boom clay, are increasingly regarded as optimal candidates for deep geological...
Analysis of physico-mechanical properties and pore structure characteristics of thermally damaged sandstone
November 2025
Under the conditions of underground coal gasification (UCG), the pore structure and mechanical properties of overlying rocks are crucial for the stability of surrounding strata. Therefore, it is of...