Suggested Topics within your search.
Suggested Topics within your search.
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Does Large‐Scale Crustal Flow Shape the Eastern Margin of the Tibetan Plateau? Insights From Episodic Magmatism of Gongga‐Zheduo Granitic Massif
Published 2022-06-01“…Detailed isotopic analyses indicate that the igneous rocks are derived from partial melting of the local Songpan‐Ganzi crust, arguing against a long‐distance crustal flow. …”
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The Properties of a Coal Body and Prediction of Compound Coal-Rock Dynamic Disasters
Published 2020-01-01“…The results implied that the physicomechanical properties of coal in a compound coal-rock dynamic disaster are between those pertinent to a typical rock burst and a coal-gas outburst, i.e., with high crustal stress surrounding pressure, high gas pressure, low permeability, bump proneness, and outburst risk. …”
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Rock Mechanical Property Influenced by Inhomogeneity
Published 2012-01-01“…Different rocks behave in different fractal dimension variation patterns with the scanned magnification, so it is conditional to adopt fractal dimension to describe rock material. …”
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Study on Supporting Protection of Tunnel Opening near a Rock Layer under Elastic Deformation of Surrounding Rock
Published 2021-01-01“…Due to the limitation of geological conditions and route alignment, tunnel engineering will inevitably pass through special sections such as shallow buried section, broken rock layer, and loss and weak rock stratum. …”
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Research on Deformation and Failure Evolution of Deep Rock Burst Drivage Roadway Surrounding Rock under Dynamic Disturbance
Published 2021-01-01“…The research results show that under the conditions of high stress and dynamic load disturbance, the surrounding rock deformation and failure are significant during the connection of the thick-top-coal roadway in deep, the roof is the most, the two ribs are the second, and the roadway top-coal is in an “inverted trapezoid” sag pattern. …”
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Dynamic Response and Time-Frequency Characteristic of Dangerous Rocks under the Combined Action of Rock Cavity Weathering and Earthquake
Published 2021-01-01“…Based on the 3D particle flow software PFC3D, the dangerous rock was divided into 3 modes according to the degree of weathering of the mudstone rock cavity, and the three-dimensional discrete element dangerous rock model under different modes was established. …”
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In Situ Curing of a Polymer Film for Light-Proof Coring of Deep Rocks with Preservation of Rock Quality and Moisture
Published 2020-01-01“…Deep in situ rock mechanic is of great significance for deep foundation research and engineering application. …”
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On the Experimental Determination of Poisson’s Ratio for Intact Rocks and Its Variation as Deformation Develops
Published 2021-01-01“…Thus, the average Poisson’s ratio is a better index than the secant Poisson’s ratio in describing the relationship between axial and lateral strains of hard rocks. The determination of Poisson’s ratio of soft rocks needs further investigation because Poisson’s ratio tends to exceed the theoretical limit in relatively low stress levels. …”
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Simulation Study on Mechanical Characteristics of Rock Bolt in Rock Mass with Bedding Separation Based on the Nonlinear Bond Slip Relationship
Published 2022-01-01“…Further, the nonlinear bond slip relationship of anchoring interface is input into Flac3D by FISH. The mechanical characteristics of rock bolt are studied with the single and multiple bedding separation by numerical simulation. …”
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Influencing Factors of Shear Instability Characteristics of Rock Joints: Experimental and Theoretical Study
Published 2025-01-01“…The experimental results show that the grain size and <i>CNL</i> have significant effects on the shear mechanical properties of rock joints. The peak shear strength (<i>τ<sub>p</sub></i>), peak shear displacement (<i>u<sub>p</sub></i>), post-peak modulus (<i>S</i>), and stress drop (Δ<i>τ</i>) of rock joints all increase first and then decrease with the increase in grain size, but they increase with the increase in CNL. …”
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Experimental Study on the Self-Healing Behavior of Fractured Rocks Induced by Water-CO2-Rock Interactions in the Shendong Coalfield
Published 2020-01-01“…This study experimentally investigated the self-healing behavior, referring to the naturally occurring water permeability decrease, of fractured rocks exposed to water-CO2-rock interaction (WCRI). …”
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Stress Uniformity Analyses on Nonparallel End-Surface Rock Specimen during Loading Process in SHPB Tests
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Influence of In-Situ Stress on the Energy Transmission of Blasting Stress Wave in Jointed Rock Mass
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Relationship between Brittleness Index and Crack Initiation Stress Ratio for Different Rock Types
Published 2020-01-01“…According to results of the limestone tests, α = 3 for σc < 60 MPa (high porosity), α = 5 for 60 MPa ≤ σc ≤ 90 MPa (moderate porosity), and α = 8 for σc > 90 MPa (low porosity) as well as for igneous and metamorphic rocks. …”
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Turnês de Guerrilha: as estratégias de empreendedorismo musical nos circuitos do rock no exterior
Published 2017-01-01“…This article aims to analyze the strategies employed by Brazilian rock bands with regard to touring abroad from an entrepreneurship perspective (Schumpeter, 1982; Timmons, 1985; Dornelas, 2007), in order to understand how the formation of an international au- dience occurs. …”
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