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1081
Sensitivity Analysis and Experimental Verification of Bolt Support Parameters Based on Orthogonal Experiment
Published 2020-01-01“…Convergence of surrounding rock surface and deformations in the rock are taken as the objective functions for the stability of the surrounding rock of the roadway. …”
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1082
Investigation into Macro- and Microcrack Propagation Mechanism of Red Sandstone under Different Confining Pressures Using 3D Numerical Simulation and CT Verification
Published 2021-01-01“…The growth and evolvement features of crack are of great significance to study the failure mechanism of rock mass and valuate the stability of the cavity. …”
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1083
A Vibration-Isolating Blast Technique with Shock-Reflection Device for Dam Foundation Excavation in Complicated Geological Conditions
Published 2018-01-01“…Under complicated geological conditions, the vibration in the dam foundation caused by blasting can lead to further deterioration of the foundation rock mass and adversely affect the safety of foundation. …”
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1084
Numerical Analysis of the Effect of Heterogeneity on Underground Roadway Stability under Dynamic Loads
Published 2021-01-01“…With the increasing depth of coal mining and expanding mining scale, the rocks surrounding deep roadways are in a complex mechanical condition of frequent dynamic disturbance. …”
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1085
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1086
Effect of Gas Adsorption on the Application of the Pulse-Decay Technique
Published 2020-01-01“…However, for sorptive rock, such as coals and shales, the sorption effect may cause different measurement results under different pulse pressures. …”
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1087
Fractal Study on the Failure Evolution of Concrete Material with Single Flaw Based on DIP Technique
Published 2022-01-01“…Crack inclination and material heterogeneity have important effects on the meso-mechanical mechanism and macroscopic mechanical behavior of rock-like materials. In order to study the failure characteristics of shotcrete body during the process of using shotcrete bolt mesh support in the deep fractured rock mass of Lannigou Gold Mine, this paper combined the Digital Image Processing Technique (DIP) and RFPA2D (Rock Failure Process Analysis System) to establish a real meso-structure numerical model of concrete with different inclination angle cracks, simulating its crack propagation law and failure process, and studied the influence of crack geometry distribution and meso-heterogeneity on the effect of concrete structure. …”
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1088
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1089
Numerical Modeling for Engineering Analysis and Designing of Optimum Support Systems for Headrace Tunnel
Published 2018-01-01“…In the present research work, the rock mass rating (RMR) and tunneling quality index (Q-system) were used as empirical methods for characterization of rock mass based on real-time geological and site geotechnical data and physical and strength properties of rock samples collected from the alignment of tunnel. …”
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1090
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1091
Experimental Study on Gas Permeability Semiempirical Model of Granite after Heat Treatment
Published 2022-01-01“…High temperature will cause a thermal crack of a rock, thus affecting the permeability change of rock. …”
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1092
Analyzing Tight Sand Characteristics and Its Influence on Aqueous Phase Removal by Gas Displacement
Published 2019-01-01“…Permeability decreases quickly with increasing confining pressure. In the rock expansion experiment, the tight sand has less expansion rate compared with shale gas rock and volcanic gas rock. …”
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1093
Analysis of Dynamic Damage Fractal and Energy Consumption Characteristics of Dolomite Marble
Published 2022-01-01“…The fractal dimension D of dolomite marble increases with increasing strain rate, and the smaller the average block size of the rock, the degree of crushing deepens. In addition, as the incident energy increases, the crushing energy of the rock also increases, and the energy dissipation intensifies. …”
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1094
Effect of Strong Mining on the Fracture Evolution Law of Trick Rise in the Mining Field and Its Control Technology
Published 2022-01-01“…This study investigates the law of stress field and fracture field of the surrounding rock at the trick rise of the mining area affected by strong mining. …”
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1095
Seismic Response for Wave Propagation across Joints with Equally and Unequally Close-Open Behaviours
Published 2018-01-01“…The interaction between rock joints and seismic waves is critical in rock engineering when rock mass is suffered from human-induced or natural earthquakes. …”
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1096
Elastoplastic Modelling of an In Situ Concrete Spalling Experiment Using the Ottosen Failure Criterion
Published 2017-01-01“…An in situ concrete spalling experiment will be carried out in the ONKALO rock characterization facility. The purpose is to establish the failure strength of a thin concrete liner on prestressed rock surface, when the stress states in both rock and concrete are increased by heating. …”
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1097
On the Dynamic Mechanical Behaviors of a Fault Unwelded Bimrock Exposed to Freeze-Thaw-Fatigue Loads: A Lab-Scale Testing
Published 2022-01-01“…The testing results show that the soil-rock interface is sensitive to freeze-thaw condition. …”
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1098
Dynamic Indentation Characteristics for Various Spacings and Indentation Depths: A Study Based on Laboratory and Numerical Tests
Published 2018-01-01“…First, laboratory tests indicate that the increase in the indentation depth first resulted in enlarged groove volumes, caused by fiercer rock breakages between indentations for a fixed spacing; then, the groove volume slightly increased for further increase in indentation depth, whereas the increase in spacing restrained rock breakages and resulted in shrunken grooves. …”
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1099
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1100
Calculation Model and Decoupling Coefficient Sensitivity Study of Periphery Hole for Eccentric Decoupled Charge in Highway Tunnels
Published 2018-01-01“…The blasting parameters of fractured rock mass are also optimized by numerical simulation.…”
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