Results 61 to 70 of about 25,625 (255)
Структурно-тектонічні особливості формування покладів газу у вуглепородних масивах Донбасу [PDF]
, 2015 Сучасні структурно-тектонічні особливості поширення газу у вуглепородних масивах Донбасу формувалися під впливом тектонічних процесів, які проявлялися протягом чотирьох етапів тектоногенезу: від пермі до неогену.
Вергельська, Н. В.
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Deep Underground Science and Engineering, EarlyView.Particle rounding effects comparison of different methods: (a), (b), and (c) are the rounding results using the B‐spline curve method with different R; (d), (e), and (f) are the results of vertex rounding substitution method with different rounding radii.
Jiabin Dong +6 more
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Gas Adsorption-Desorption and Emission Law of Tectonic Coal under Different Degrees of Damage
Chemical Engineering Transactions, 2018 The purpose of this paper is to study the difference of tectonic coal with different degrees of damage (DoD) in terms of gas adsorption, desorption and emission.
Yang Li +3 more
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Energies, 2021 Because of its weak cementation and abundant pores and cracks, it is difficult to obtain suitable samples of tectonic coal to test its mechanical properties.
Congyu Zhong +4 more
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Coal Deformation, Metamorphism and Tectonic Environment in Xinhua, Hunan
Journal of Geoscience and Environment Protection, 2018 This article discusses in detail chemical composition, molecular structure, microstructure phenomena, estimate of the palaeo-stress, paleo-temperature and the strain rate to deepen the knowledge for the correlation of coal deformation and metamorphism with structural environment in Xinhua Hunan by coal quality analysis, XRD and SEM methods, which ...
Huantong Li +4 more
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Strain‐based modeling and analysis for rock blasting and geomechanics applications
Deep Underground Science and Engineering, EarlyView.This paper introduces a novel strain‐based modeling approach for blasting and geomechanical applications, using measurable variables like particle velocity, strain, and displacement. By bypassing complex constitutive relations, strain‐based models capture critical blasting trends and full‐blast design parameters with minimal calibration.
Ruilin Yang
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Effect of supercritical CO2 on pore structure and desorption characteristics of tectonic coal
Meikuang AnquanIn order to analyze the influence of supercritical CO2 on pore structure and desorption characteristics of tectonic coal, a high-temperature and high-pressure geological environment simulation system was used to treat primary coal and tectonic coal with ...
Fanfan NIU +3 more
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Deep Underground Science and Engineering, EarlyView.Hydraulic fracturing in tight sandstone and fracture propagation characteristics using backscattered electron‐scanning electron microscope (BSE‐SEM) images. Abstract This study focuses on hydraulic fracturing experiments conducted under triaxial conditions on tight sandstone specimens from Shivpuri district, Madhya Pradesh, India.
Pankaj Rawat, Narendra Kumar Samadhiya
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Meikuang Anquan, 2020 Taking 3# coal seam of eastern Qinnan block as the research object, based on the description results of CBM well drilling coring, the vertical characteristics and horizontal distribution of tectonic coal were studied, the influence of tectonic coal on ...
LIU Shiqi, SANG Shuxun, YANG Henglin, SANG Guangjie, QIAO Maopo
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Geology of the Hamilton region [PDF]
, 1967 This account takes the form of a synopsis which closely follows that prepared for a bulletin entitled "Geology of the Ngaruawahia Subdivision" (Kear and Schofield, in press).
Schofield, J.C.
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