Results 31 to 40 of about 3,512 (307)
Analysis on the evolution law of creep-fatigue failure energy of deep anchored jointed rock mass
Zhongguo dizhi zaihai yu fangzhi xuebao, 2022 In order to explore the mechanical properties of deep rock masses under disturbance loads such as blasting and excavation, laboratory tests of anchored rock masses under creep-fatigue loads were carried out, and the law of energy evolution was further ...
Yang SONG, Hui YANG, Yongqi LI, Bo FAN
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THE SURVEY AND THE ANALYSIS OF ROCK JOINT AND THE DETERMINATION OF JOINTED ROCK MASS MODEL
Doboku Gakkai Ronbunshu, 1996 原位置においてボーリング孔壁観察を行い, 得られた画像データをもとに不連続面の位置, 走向・傾斜, 開口幅等を画像処理により求めた. これらの結果を解析することにより, 2種類の不連続性岩盤のモデル化を行った. 一つは, 方向分析によって得られる不連続面群を用いた不連続体モデルである. 本研究では, 頻度, 面積, 開口幅を考慮した不連続面群の相対重要度を比較するパラメータの提案を行い, 実際の計測結果に適用を行った. もう一つは, 地質構造や不連続面の開口幅を考慮にいれて求めるき裂頻度をもとにした擬似連続体モデルの提案を行った. これにより, 変形性や透水性を検討する解析モデルや, ジオトモグラフィー解析などの精度向上に貢献する初期モデルの構築に利用できるものと考える.
Chikaosa Tanimoto +4 more
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Applied Sciences, 2022 The discrete element method (DEM) is commonly employed to analyze the deformations and failures of jointed rock slopes. However, when the iterative calculation process of the DEM modeling should be terminated is still unclear. To solve the above problem,
Xiaona Zhang, Yan Sun, Gang Mei
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A method for graphically presenting the deformation modulus of jointed rock masses
, 2001 A method to graphically present the deformation modulus of jointed rock masses is presented. A global co-ordinate system is used in the approach to define the geometry of rock joints.
Li, Chunlin,
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Jointed rock slope stability evaluation based on PEM-JFEM method
工程科学学报, 2015 With the south slope(footwall) of an open pit in Zambia as a research subject,the Rosenbluth point estimation method(PEM) coupled with the jointed finite element method(JFEM) was applied to this jointed rock slope stability evaluation.
XIAO Shu +5 more
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Rock Mass Classification for Columnar Jointed Basalt: A Case Study of Baihetan Hydropower Station
Geofluids, 2020 Rock mass classification is important in preliminary design of geotechnical engineering projects. Using the columnar jointed basalt at the foundation of Baihetan Hydropower Station as an example, this paper presents a classification scheme of the ...
Shiyue Zhang +7 more
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Electrical resistivity of a jointed rock mass with an anomaly
, 2020 It is of great importance to estimate the spatial characteristics of a jointed rock mass in a diverse range of disciplines. Although electrical resistivity prospecting can facilitate this, limited attempts have been made to perform electric field ...
Ryu, Hee-Hwan +2 more
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Energy damage evolution mechanism of non-across jointed rock mass under uniaxial compression
Yantu gongcheng xuebao, 2019 Energy accumulation and energy release appear evidently during the whole deformation process of jointed rock mass. In order to explore the energy evolution law of jointed rock mass under loading condition, the uniaxial compression experiment and the ...
WANG Gui-lin 1,2, ZHANG Liang 1,2, XU Ming 1,2, LAING Zai-yong 1, RANG Long-bao 1
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Arthritis Care &Research, EarlyView.Objective Sjögren's disease is an autoimmune disorder that can impact multiple organ systems, including the peripheral nervous system (PNS). PNS manifestations, which can exist concurrently, include mononeuropathies, polyneuropathies, and autonomic nervous system neuropathies.
Anahita Deboo +88 more
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Mechanisms of failure of jointed rock masses and the behaviour of steep slopes [PDF]
, 1998 The geomorphological behaviour of steep jointed rock slopes has been studied using distinct element method computer models. In order to model steep slopes effectively, methodologies need to be combined from the studies of environmental modellers ...
Kimber, Owen Graham
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