Results 11 to 20 of about 2,525 (166)
Types of permeable fractures in granite [PDF]
Geological Society, London, Special Publications, 2005 Abstract This study presents a multidisciplinary approach to understanding and describing types of fracture permeability in the Soultz-sous-Forêts granite, Upper Rhine Graben. At Soultz, during the 1993 stimulation tests in the GPK1 well, it was shown that only a limited number of natural fractures contributed to flow, whereas there are ...
Sausse, J., Genter, Albert
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Freeze–thaw fracturing in building granites [PDF]
Cold Regions Science and Technology, 2015 Peer ...
Freire, D. M. +2 more
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Fracture process zone in granite [PDF]
Journal of Geophysical Research: Solid Earth, 2000 In uniaxial compression tests performed on Aue granite cores (diameter 50 mm, length 100 mm), a steel loading plate was used to induce the formation of a discrete shear fracture. A zone of distributed microcracks surrounds the tip of the propagating fracture. This process zone is imaged by locating acoustic emission events using 12 piezoceramic sensors
Zang, A. +4 more
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Laboratory Acousto‐Mechanical Study Into Moisture‐Induced Reduction of Fracture Stiffness in Granite
Geophysical Research Letters, 2023 Water infiltration into fractures is ubiquitous in crustal rocks. However, little is known about how such a progressive wetting process affects fracture stiffness and seismic wave propagation, which are highly relevant for characterizing fracture systems
Rui Wu +5 more
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Simulating Electropulse Fracture of Granitic Rock
International Journal of Rock Mechanics and Mining Sciences, 2019 Abstract Electropulse treatments employ a series of high-voltage discharges to break rock into small fragments. As these methods are particularly suited to fracturing hard brittle rocks, electropulse treatments can serve to enhance or substitute for more traditional mechanical approaches to drilling and processing of these materials.
Walsh, Stuart, Vogler, Daniel
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Genetic mechanism of the granite buried-hill reservoir of the Penglai 9-1 oilfield in Bohai Sea
Petroleum Research, 2017 The Penglai 9-1 oilfield is the largest granite buried-hill oilfield in China presently, genesis and evolution of the granite buried-hill reservoir is complex.
Zhiwei Hu +4 more
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Geofluids, 2022 SHPB test system was used to conduct dynamic impact experiments on frozen granite under different negative temperatures. The fracture surface of granite under impact load was found via scanning electron microscope (SEM).
Yang Yang, Niannian Zhang, Jianguo Wang
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Static mechanical properties and damage evolution characteristics of selected rocks in diversion tunnel under uniaxial loading [PDF]
Archives of Civil EngineeringAn in-depth understanding of the mechanical properties and damage and fracture mechanism of selected rocks in a diversion tunnel plays an important role in promoting the efficient construction and safety of rock blasting excavation in a diversion tunnel.
Rongzhou Yang +4 more
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Effect of high temperature on micro-structure and permeability of granite
Rock and Soil Mechanics, 2021 High temperature can cause the thermal fracture of rock, which affects the permeability of rock. In order to investigate the effect of temperature on the microstructure and permeability of rock, the ultrasonic velocity, density and gas permeability of ...
DENG Shen-yuan +4 more
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Fractography study of heat-treated granite under action of cyclic impact loading
Shuili Shuiyun Gongcheng Xuebao, 2018 In order to investigate the influences of temperature and dynamic loading on the failure mechanism of biotite granite, the cyclic impact compression tests on the granite specimens heat-treated by different temperatures were carried out using the split ...
WANG Lu +4 more
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