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Develo** rock mass classification method using precise description of joints
Rock mass classification is essential for assessing the quality of macroscopic rock mass and is the basis for rock mass stability analysis and...
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Effect of Water-Induced Rock Softening on Rock Anisotropy During Drilling Process
Rocks have a softening effect under the long-term physical and chemical action of water, resulting in a reduction in the strength of rock and a...
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Hydraulic Fracturing of Soft and Hard Rocks: Part 1—Rock Behavior Due to Fluid Penetration Rate
Hydraulic fracturing (HF) can initiate, propagate, and coalesce cracks, by injecting fluids into rocks. Two papers provide experimental results on...
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Effect of Strain Rate on Mechanical Properties and AE Characteristics of Hard Rock Under the Impact of Uniaxial Compression
To study the effect of strain rate on mechanical response, energy mechanism, damage mode and AE characteristics of granite rock, the uniaxial...
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Rock fracture identification with measurement while drilling data in down-the-hole drills
The structural characteristics of rock mass are crucial for the planning and construction of geotechnical engineering. Traditional methods for...
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Stability prediction of the toppling rock slope on the Heihe reservoir bank using discontinuous deformation analysis
The Heihe Water Diversion Project in Zhouzhi County, Shaanxi Province is a “lifeline” engineering project that supplies water as well as electric...
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A Modified Hoek–Brown Model for Determining Plastic-Strain-Dependent Post-peak Strength of Brittle Rock
Understanding the strength and deformation behaviors of rock is important for rock engineering design and analysis. To systematically study the...
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Evaluating the structure and mechanical properties of deep rock masses based on drilling process monitoring and borehole televiewer
Drilling process monitoring (DPM) has been rarely adopted in deep rock engineering for structure identification and mechanical property estimation of...
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Experimental Study on Rock Failure Characteristics of Ejective Rock Burst Based on Energy Compensation
Rock burst is a typical type of dynamic geological disaster in the process of underground engineering excavation under high in-situ stress. Based on...
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Mechanism of Dielectric Breakdown in Heterogeneous Rock
Electric impulse drilling (EID) technology has great industrialization potential since it has unique advantages in crushing hard rocks of deep...
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A Novel Method for Estimating Axial Force of Rock Bolt Through 3D Laser Scanning and Deep Learning
Estimating the axial force of rock bolts is vital for the stability and safety of underground excavations. Current methods suffer from being...
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Ground Control Method of Using Roof Cutting Pressure Release and Energy-Absorbing Reinforcement for Roadway with Extra-Thick Hard Roof
Coal mining in the western region of China is often faced with extra-thick coal seams and extra-thick hard roof, where the roof is difficult to...
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An approach to analyzing the reliability of tunnel surrounding rock rating results considering uncertainty
The geological environment of underground engineering is complex and full of various uncertainties, and ensuring the reliability of tunnel...
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Determination of rock quality designation (RQD) using a novel geophysical approach: a case study
Rock mass integrity is mainly assessed by geotechnical parameters. Rock quality designation (RQD) is a reliable geomechanical parameter, extensively...
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Optimizing a Rock-Like Material Mix Design for Enhancing the Mining Fracture Monitoring Accuracy of Borehole Resistivity Method
Water disaster prevention and gas extraction in coal mining need to accurately determine the development strata of mining fractures. The borehole...
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Chlorinated ethenes characterization using high-resolution rock core analysis in a weathered crystalline rock aquifer in São Paulo, Brazil
Most of the contaminant conceptual models in weathered crystalline bedrock aquifers in Brazil rely on data collected using conventional site...
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Mechanism of subsidence-buckling and instability of slopes in thick-layered rigid rock under mining
The deformation and failure of mining slopes in layered rocks predominantly result from shear landslides. However, the instability process of the...
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Field Study on Bearing Capacity of Large-Diameter Rock-Socketed Bored Piles with Combined Grouting in Highly Weathered Rock Layers
This paper aims to investigate the effect of combined end-and-side grouting on the bearing properties of large-diameter rock-socketed bored piles in...
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Rock Chip Properties of TBM Penetration in Jointed Rock Masses Based on an Improved DICE2D Simulation
In most cases, TBM tunnels are constructed in jointed rock masses. Rock chip properties can be used to interpret the response of the rock mass to the...
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Classification for tunnel surrounding rock based on multiple geological methods and extension model
Rock mass classification is an essential basis for evaluating the stability of surrounding rock in tunnels and for determining reasonable...
