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81
Bearing characteristics and damage rules of regenerated rock mass
Published 2025-01-01Subjects: “…Regenerated rock mass…”
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82
Loading History Effect on Stress Relaxation of Rock Joints
Published 2021-01-01Get full text
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83
Research on the Resonance Characteristics of Rock under Harmonic Excitation
Published 2019-01-01“…In order to study the resonance characteristics of rock under harmonic excitation, two vibration models have been presented to estimate the natural frequency of rock encountered during the drilling. …”
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84
Researches on Damage Evolution and Acoustic Emission Characteristics of Rocks
Published 2018-01-01“…Mechanical parameters of the rock are important for the design of geotechnical, mining engineering, and petroleum reservoir projects. …”
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85
Quantitative Analysis of the Topological Structure of Rock Pore Network
Published 2021-01-01“…As the most significant nonlinear reservoir, the rocks have complex structural characteristic. The pore structure of the rock is varied in shape and complex in connectivity. …”
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86
The Frequency Dependence of Poisson’s Ratio in Fluid-Saturated Rocks
Published 2022-01-01“…We investigated the frequency dependence of Poisson’s ratio ν in partially/fully fluid-saturated rocks. Based on one dominant fluid flow mechanism at each condition, we theoretically summarized that (1) when a rock is partially saturated or transits from drained state to undrained state at full saturation, ν increases monotonously with frequency, and the associated attenuation 1/Qν is positive with one peak. (2) When the rock transits from undrained state to unrelaxed state at full saturation, there are three cases: 1) ν increases monotonously with frequency and has positive 1/Qν with one peak, 2) ν keeps constant with frequency and has no attenuation, 3) and ν decreases monotonously with frequency and has negative 1/Qν with one peak. …”
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87
Plastics on the rocks: the invisible but harmful footprint of shoe soles
Published 2023-02-01Get full text
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88
Stability Analysis of Rock Slope with Multilayer Weak Interlayer
Published 2021-01-01“…The existence of the weak interlayer of the rock slope changes its mechanical characteristics. …”
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89
A Coupled Elastoplastic Damage Dynamic Model for Rock
Published 2021-01-01“…Rock dynamic constitutive model plays an important role in understanding dynamic response and addressing rock dynamic problems. …”
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90
Quantitative Characterization of Tight Rock Microstructure of Digital Core
Published 2022-01-01“…This paper is helpful for quantitative evaluation of reservoir microscopic parameters and provides technical support for visualization and quantitative characterization of rock microstructure.…”
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91
Fractal Statistical Study on the Strength of Jointed Rock Mass
Published 2022-01-01“…The failure probability and strength of jointed and fractured rock mass under water pressure action place important constraints on the safety and stability of rock mass engineering. …”
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92
Fractal Characteristic of Rock Cutting Load Time Series
Published 2014-01-01“…A test-bed was developed to perform the rock cutting experiments under different cutting conditions. …”
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93
Failure Process Simulation of Interlayered Rocks under Compression
Published 2018-01-01“…Anisotropy in strength and deformation of rock mass induced by bedding planes and interlayered structures is a vital problem in rock mechanics and rock engineering. …”
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94
Influence of Microscopic Parameters on the Stress-Strain Relation in Rocks
Published 2018-01-01“…This paper studies the influence of microscopical characteristic parameters, such as particle contact stiffness ratio, parallel bond stiffness ratio, particle contact modulus, and parallel bond elastic modulus, on the stress-strain relation in rocks, which shows that (1) The range of particle contact stiffness ratio kn/ks largely varies, but the stress-strain relation curve is relatively small. …”
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95
Characterization of Scoria Rock from Kisoro As an Aggregate in Concrete.
Published 2023“…This research study highlights the characteristics of scoria rock from Kisoro as aggregates. The tests on both fine and coarse aggregates from scoria rock are presented in this report. …”
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96
Study on Zonal Cooperative Control Technology of Surrounding Rock of Super Large Section Soft Rock Chamber Group Connected by Deep Vertical Shaft
Published 2022-01-01“…Aiming at solving the problem of asymmetric deformation, failure, and stability control of surrounding rock caused by the excavation of deep super large section soft rock chamber group passing through multilayer strata, taking super large section soft rock chamber group connected by deep vertical shaft in Wuyang Coal Mine as the engineering background, the deformation development mode of surrounding rock, the expansion situation of loosening range, and the plastic failure response characteristics in chamber group under the disturbance influence are monitored and numerically analyzed. …”
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97
The growth performance of rock partridge (alectoris graeca) fed the diets with different protein level
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98
Application of semi-supervised Mean Teacher to rock image segmentation
Published 2025-01-01Subjects: Get full text
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99
Geochronology of the felsic rocks in Orijärvi, southern Finland – implications for stratigraphy
Published 2025-01-01“…Previously, felsic volcanic rocks from the Orijärvi, Kisko and Toija formations have been dated at 1895 ± 3, 1878 ± 4 and 1878 ± 4 Ma, respectively. …”
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100
Interrelationships between Acoustic Emission and Cutting Force in Rock Cutting
Published 2021-01-01“…In this paper, full scale rock cutting tests are used to carry out single pick cutting experiments on three kinds of coal, and the acoustic emission (AE) signals of coal and rock cutting are monitored in the whole process. …”
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