Prediction of uniaxial compressive strength of rock based on lithology using stacking models
October 2023
Uniaxial compressive strength (UCS) of rock is an essential parameter in geotechnical engineering. Point load strength (PLS), P-wave velocity, and Schmidt hammer rebound number (SH) are more easily...
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Rapid intelligent evaluation method and technology for determining engineering rock mass quality
April 2023
The evaluation of engineering rock mass quality is fundamental work for the engineering activities of rock mass. The increasing scale of rock mass engineering necessitates higher intelligence, timeliness,...
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Intelligent early-warning platform for open-pit mining: Current status and prospects
January 2024
As the profundity of open-pit mining operations has increased, so has the frequency of geological disasters. The complex interaction of factors causing these disasters presents technical challenges...
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Assessment of nano-to-micro-scale geomechanical properties and their time-dependent behavior: Current status and progressive perspectives
January 2024
Rocks can deform at varying scales (nano-, micro- and macro-scale) under different temperatures, pressures, stresses, and time conditions. Sub-core scale (nano-to micro-scale) changes in rock properties...
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Cross-fault Newton force measurement for Earthquake prediction
October 2022
Earthquake prediction is a common scientific challenge for academics worldwide. This dilemma originates from the lack of precursory indicators that meet the sufficient and necessary conditions of earthquake...
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Geomechanical risk and mechanism analysis of CO2 sequestration in unconventional coal seams and shale gas reservoirs
October 2023
With global greenhouse gas emissions hitting record highs in 2021, CO2 geological sequestration (CGS) is the most realistic and feasible technology to ensure large-scale carbon reduction to achieve...
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A review of previous studies on the applications of fiber optic sensing technologies in geotechnical monitoring
January 2023
Geotechnical engineering is characterized by many uncertainties, including soil material properties, environmental effects, and engineering design and construction, which bring a significant challenge...
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Evaluation method of rock damage under uniaxial compression based on unit series-parallel electrical conductive model
October 2023
The evaluation of rock damage behaviour is an important requirement for ensuring stability control and safety prediction in rock engineering. However, they have not been able to obtain sufficiently...
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Compaction and seepage characteristics of broken coal and rock masses in coal mining: A review in laboratory tests
April 2024
Broken coal and rock (BCR) are an important component medium of the caving zone in the goaf (or gob), as well as the main filling material of fault fracture zone and collapse column. The compaction...
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Three-dimensional failure behavior and cracking mechanism of rectangular solid sandstone containing a single fissure under triaxial compression
October 2022
In actual rock engineering, fissures play an important role in determining the mechanical parameters of rock mass, whereas it is very difficult to construct fissures in cylindrical specimens. Therefore,...
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Disposal of high-level radioactive waste in crystalline rock: On coupled processes and site development
July 2023
Safe disposal of high-level radioactive nuclear waste (HLW) is crucial for human health and the environment, as well as for sustainable development. Deep geological disposal in sparsely fractured crystalline...
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Simulation of 3D fracture propagation under I-II-III mixed-mode loading
October 2023
Fracture propagation under mixed-mode loading conditions prevails in many natural geological processes and deep engineering projects, while the corresponding numerical simulation is very challenging...
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Sidewall rockburst of highly stressed D-shape hole tunnel triggered by impact load: An experimental investigation
January 2024
This study aims to clarity the failure mechanism of sidewall rockburst of highly stressed D-shape tunnel triggered by impact load. Using the biaxial Hopkinson pressure bar (BHPB) system, we have developed...
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Experimental investigation on acoustic emission precursor of rockburst based on unsupervised machine learning method
April 2024
The key to achieving rockburst warning lies in the understanding of rockburst precursors. Considering the correlation characteristics of rockburst acoustic emission (AE) parameters, a self-organizing...
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Effect of temperature-dependent rock thermal conductivity and specific heat capacity on heat recovery in an enhanced geothermal system
April 2023
The modeling of heat recovery from an enhanced geothermal system (EGS) requires rock thermal parameters as inputs such as thermal conductivity and specific heat capacity. These parameters may encounter...
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More is different: On the emergence of collective phenomena in fractured rocks
October 2023
Fractures widely exist in crustal rocks and form complex networks dominating the bulk behaviour of geological media. Thus, understanding how fracture networks affect subsurface processes/phenomena is...
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Optics-based metaheuristic approach to assess critical failure surfaces in both circular and non-circular failure modes for slope stability analysis
January 2024
In many construction projects, a proactive slope stability evaluation is a prerequisite. Although many deterministic or non-deterministic approaches have been commonly used, metaheuristic approaches...
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Characteristic stress and strain precursor information for fine-grained granite during failure process under triaxial loading and unloading conditions
January 2024
The unloading effect by excavation may cause irreversible and severe damage to the surrounding rock masses in underground engineering. In this paper, both conventional triaxial compression (CTC) tests...
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Advances in development of shear-flow testing apparatuses and methods for rock fractures: A review
October 2022
Understanding the mechanical and hydraulic properties of fractured rocks and their coupled processes is of great significance for the exploration, design, construction, operation, and maintenance of...
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Evaluation method of underground water storage space and thermal reservoir model in abandoned mine
April 2023
A large number of mines are closed or abandoned every year in China. Geothermal utilization is one of the important ways to efficiently reuse underground resources in abandoned mines. How to calculate...
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Finite domain solution of a KGD hydraulic fracture in the viscosity-dominated regime
January 2024
This paper describes a numerical algorithm for solving the classic problem of a plane strain (KGD) fracture propagating in an impermeable elastic medium with zero toughness. The method, which takes...
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Damage effect and progressive failure mechanism of sandstone considering different flaw angles under dynamic loading
January 2024
In many engineering applications, it is essential to have information about rocks that inherently contain pre-existing flaws under dynamic loading conditions. Dynamic impact tests are conducted on samples...
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Progress on rock mechanics research of Beishan granite for geological disposal of high-level radioactive waste in China
July 2023
The mechanical behavior of host rock for a deep geological repository of high-level radioactive waste plays a key role in ensuring the isolation function of host rock as a natural barrier under the...
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Permeability evolution during pressure-controlled shear slip in saw-cut and natural granite fractures
April 2023
Fluid injection into rock masses is involved during various subsurface engineering applications. However, elevated fluid pressure, induced by injection, can trigger shear slip(s) of pre-existing natural...
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Current status of the geological disposal programme and an overview of the safety case at the pre-siting stage in Japan
July 2023
In Japan, high-level radioactive waste and specific low-level radioactive waste which includes long-lived radionuclides are planned to be disposed of in the geological formations at depths greater than...
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