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401
Deformation Mechanism and Control Technology of the Surrounding Rock of the Floor Roadway under the Influence of Mining
Published 2020-01-01“…Deformation and failure mechanism of the surrounding rock of the floor roadway under the influence of working face mining is complicated, and roadway control is difficult. …”
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402
Simulating Study on Mechanical Properties of Rock Wool Board for Thermal Insulation on External Walls
Published 2020-01-01“…Rock wool board (RWB) is widely used in construction of exterior insulation worldwide. …”
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403
Hannah Arendt, Little Rock et la question de la neutralité scolaire
Published 2022-06-01“…In order to depart from recurring debates in France, we propose here to take a detour through America, with the Little Rock affair and the Hannah Arendt’s paper about claims of the State to initiate the process of social desegregation by ordering public high schools to integrate black students. …”
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404
A New Rock Joint Generation Method and Its Verification in PFC2D
Published 2018-01-01“…The proposed model can also simulate the asperity degradation of rough jointed rock masses.…”
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405
Hydraulic Fracturing Mechanism of Rock Mass under Stress-Damage-Seepage Coupling Effect
Published 2022-01-01“…According to the damage evolution model of rock mass under stress-seepage coupling effect, the representative element theory is employed to describe the change law of rock mesostructure. …”
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406
Effect of Seismic Frequency Spectra on Surrounding Rock Damage Evolution of Large Underground Caverns
Published 2018-01-01“…To explore the distribution and evolution of the surrounding rock of underground caverns of hydropower stations, the dynamic compression tests for granite sample were carried out and the dynamic constitutive relation suitable to computer programming was established in terms of strain-based static elastic-plastic damage constitutive relation. …”
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407
The Impact Behavior between Coal Gangue Particles and the Tail Beam Based on Rock Failure
Published 2021-01-01“…A new model to simulate the actual failure conditions of rock particles was developed: the brittle damage-fracture particle model. …”
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408
Numerical Simulation of Bedrock Sagging Sinkholes in Strain-Softening Rock Induced by Embankment Construction
Published 2019-01-01“…Then, bedrock sagging sinkholes in strain-softening rock induced by embankment construction were simulated. …”
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409
Method Improvement and Effect Analysis of Triaxial Compression Acoustic Emission Test for Coal and Rock
Published 2019-01-01“…In the study of the acoustic emission (AE) characteristics of rock samples or coal samples under triaxial compression conditions, most scholars carry out relevant experiments by placing the AE detector on the outer wall of the triaxial chamber of the rock mechanics test system. …”
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410
Research on Cutting Characteristics of Rock Plate with Two Sides Fixed and Two Sides Free
Published 2020-01-01“…The size of rock fragments increases with uniaxial compressive strength, width, and height of rock plate.…”
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411
Deformation Failure and Support Test of Surrounding Rock in Deep Arched Roadway with Straight Wall
Published 2021-01-01“…Combined with the time period of deformation and failure of the surrounding rock of the roadway, the damage scope of the surrounding rock and the actual situation of the site engineering. …”
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412
Impact of Temperature on the Strength Development of the Tailing-Waste Rock Backfill of a Gold Mine
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413
Study on the Effect of Mineral Particle Sizes on the Spectral Characteristics of Sound and Vibrations in Rock Drilling
Published 2020-01-01“…This study aimed to investigate the relationships between particle sizes and spectral characteristics of the sound or vibration signals generated in rock drilling processes. Several drilling experiments were conducted on concrete specimens of different aggregate sizes. …”
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414
Influence of Bidirectional Impact Loading on Anomalously Low-Friction Effect in Block Rock Media
Published 2018-01-01“…The anomalously low-friction effect is a key scientific problem in deep mining. The deep coal rock media is usually a block structure with joint fracture. …”
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415
Application of the Slope Coefficient of the Equivalent M–C Criterion in Layered Rock Mass Engineering
Published 2022-01-01“…The above combinations are input to the ubiquitous joint model of FLAC3D, and the surrounding rock strength of layered tunnels with different inclination angles (0°, 30°, 45°, 60°, and 90°) is corrected. …”
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416
Resource-Exploration-Oriented Lunar Rocks Monocular Detection and 3D Pose Estimation
Published 2024-12-01“…First, the YOLO-Hourglass-Transformer (YHT) network is used to extract keypoint information from each rock and generate the corresponding 3D pose. Then, a lunar surface imaging physics simulation model is employed to generate simulated lunar rock data for testing the method. …”
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417
Research of Rock Burst Risk Induced by Mining and Field Case in Anticlinal Control Area
Published 2018-01-01“…The microseismic energy and frequency are higher during mining, increasing the risk of rock burst events. It can provide scientific basis for prevention and control of rock burst.…”
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418
Numerical Simulation of Rock Plate Cutting with Three Sides Fixed and One Side Free
Published 2018-01-01“…In order to overcome conical pick wear in the traditional rock cutting method, a new cutting method was proposed on account of increasing free surface of the rock. …”
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419
Complex Modeling of the Effects of Blasting on the Stability of Surrounding Rocks and Embankment in Water-Conveyance Tunnels
Published 2018-01-01“…The effects of different excavation steps on the safety of surrounding rocks and embankment under blasting seismic waves were simulated. …”
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420
Experimental Study on the Tensile Properties of Rock-Mortar Interface under Different Strain Rates
Published 2018-01-01“…In this paper, an experimental study was carried out on a rock-mortar interface specimen under three different strain rates (10−6, 10−5, and 10−4 s−1) using the MTS322 electrohydraulic servo loading system, and a new constitutive relation function of fictitious crack model (FCM) according to the axial-stress-crack-width curves of the rock-mortar interface is established, because the traditional nonlinear softening function easily distorts, shakes, and so cannot describe the damage-evolution process of the rock-mortar interface accurately. …”
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