Results 31 to 40 of about 4,261 (263)
Frontiers in Earth Science, 2022 During long-term geological tectonic processes, multiple fractures are often developed in the rock mass of high-level radioactive waste disposal sites, which provide channels for release of radioactive material or radionuclides.
Nisong Pei +8 more
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Fractal of Fracture System in Rock Mass
Journal of the Japan Society of Engineering Geology, 1988 For modeling groundwater flow and mechanical responses of fractured rock mass, to grasp the characteristics of fractures is essentially needed. Recently, the concept of fractal has been applied by some researchers to describe the fracture system. In this study, the authors report a statistical approach made to check the adaptability of the concept of ...
OHNO, Hiroyuki, KOJIMA, Keiji
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Meikuang Anquan, 2023 The deep strata in the coal mine are mainly affected by the tectonic stress field, which is mainly horizontal stress and has obvious directionality.
CHENG Song, TANG Bin, XIE Kai, ZHAO Neng, WANG Yiyang
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Energies, 2022 The accuracy of the monitoring information is particularly important for exploring fractured rock mass deformation and failure mechanisms and precursor characteristics.
Qinghe Zhang +3 more
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CONSIDERATIONS IN FRACTURE OF ROCK MASS BY USING TRIAL HYDRAULIC ROCK FRACTURE MACHINE
Doboku Gakkai Ronbunshu, 1997 近年, 住宅地や既設構造物の近くにおいて岩盤を破砕する工事が多くなってきている. 振動をきらう場所において動的破砕による工法を採用することは困難であり, また従来の静的な破砕工法は孔周辺に等荷重をかけるためエネルギー的に無駄が生じたり, 亀裂の方向制御が困難であるなどの問題点がある. そこで筆者らはこれらの問題を解決する一つの方法として4方向に集中荷重を加圧できる油圧式の岩盤破砕機を試作した. この試作機を用いて, 効率的な岩盤破砕を行うための実験および理論解析を行い検討し, 考察した結果について述べる.
Yoshinori Inada +5 more
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Shear-slipe Deformation and Critical Stress State Discriminant Criteria for Fault Rock Masses
Taiyuan Ligong Daxue xuebao, 2022 Deep fault rock mass may undergo large-scale slip deformation under the action of tectonic stress or engineering disturbance, which has a non-negligible impact on engineering and human activities.
Peng ZHAO, Zijun FENG
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Corrected Rock Fracture Parameters Applied to Qatari Rock Masses
The International Conference on Civil Infrastructure and Construction, 2023 This paper is the continuation of the author's previous publications and an attempt to shed light on some of the presented propositions, therein. In his previous work, the author introduced a novel parameter for borehole rock mass evaluation, the FIC, (Fracture Index Corrected) and applied it to Qatari rock masses along with RQDC (Rock Quality ...
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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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Advanced Functional Materials, EarlyView.A novel oil–water selective conformance control agent, MPRP, is prepared via hydrophilic grafting and mechanical granulation. MPRP uniformly disperses in water, cohesively expands upon aging, and readily dissolves in the oil phase. During conformance control, it selectively aggregates in water channeling pathways to form effective plugs without ...
Guang Zhao +6 more
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International Journal of Mining Science and Technology, 2023 The damage-fracture evolution of deep rock mass has obvious particularity, which is revealed in 2400-m-deep tunnels by field tests. The evolution of the excavation damaged zone depth is consistent with that of the fractured zone depth.
Haosen Guo +4 more
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