Results 31 to 40 of about 867,349 (301)
AIP Advances, 2020 The response of rock mass to engineering activities related to environment greatly depends on the scale of rock mass. Therefore, the scale dependency of rock mechanical behavior under different rock mass conditions is investigated in this research.
Wenli Yao +2 more
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Study on the Creep and Fracture Evolution Mechanism of Rock Mass with Weak Interlayers
Advances in Materials Science and Engineering, 2022 To study the influence of weak interlayers on the creep failure characteristics of rock masses, based on the continuous-discontinuous method (CDEM), the uniaxial compression creep experiments of rock masses containing weak layers were numerically ...
Na Zhao +3 more
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Scientific Reports, 2023 A cataclastic rock mass is a poor type of engineering geological rock mass. The determination of the shear failure characteristics and shear strengths of cataclastic rock masses can provide key basis for the design and construction of infrastructure ...
Shan Dong, Zhichun Lu, Xi Hu
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Study on Interfacial Crack Initiation of Jointed Rock Mass Based on Interface Fracture Mechanics
Fractal and Fractional, 2022 The fracture of interfacial crack is the main failure type of jointed rock mass. Therefore, it is very important to study the interfacial fracture of jointed rock mass. For the similarity of jointed rock mass and composites (all are composed by two parts,
Wei Gao, Xin Chen, Chengjie Hu
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Full and half-wavelength ultrasonic percussive drills [PDF]
, 2018 Ultrasonic-percussive drills are a leading technology for small rock drilling applications where power and weight-on-bit are at a premium. The concept uses ultrasonic vibrations to excite an oscillatory motion in a free-mass, which then delivers ...
Harkness, Patrick +2 more
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Особливості формування техногенних родовищ вапняку [PDF]
, 2018 Segregation laws become important in the formation of man-made deposits. The theoretical basis of the physical mechanism of the phenomenon of segregation of the rock mass in the formation of dumps and the storage of minerals or finished products in the
Mekshun, M., Pchelkin, G., Strilets, O.
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Kepler-1656b: a Dense Sub-Saturn With an Extreme Eccentricity [PDF]
, 2018 Kepler-1656b is a 5 $R_E$ planet with an orbital period of 32 days initially detected by the prime Kepler mission. We obtained precision radial velocities of Kepler-1656 with Keck/HIRES in order to confirm the planet and to characterize its mass and ...
Brady, Madison T. +8 more
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Case Studies in Construction MaterialsThe combination of nanocolloidal silica and aluminate cement is a potential technical approach to solve the problem of mudstone grouting, but there is a lack of high-performance admixtures to improve early strength and gel time.
Dongjiang Pan +3 more
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Hydrogeological and geotechnical rock property characterization from geophysics [PDF]
, 1998 Boreholes drilled at Sellafield penetrated a variety of rock units. Core samples and wireline logs indicate that rock mass properties and in situ fluid properties vary from one unit to another, but that properties are relatively uniform for each unit ...
Brereton, N.R., Evans, C.J., Kingdon, A.
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Applied Sciences, 2023 Continuous mining is one of the development goals for metal mines, and the application of coal mining equipment represented by shearers provides a reference for continuous mining. However, rock in metal mines is generally harder than coal, making cutting
Weipeng Xu +6 more
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