Results 31 to 40 of about 1,050 (161)
Evaluation of slope stability in open pit based on 3D geological modeling and DFN
Shuiwen dizhi gongcheng dizhiThis study addressed the limitations of conventional numerical simulation techniques for discrete rock masses and joints by introducing a novel method for assessing slope stability in open-pit mines.
Yongji CHEN, Tingke YAN, Cong LIU
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Meikuang Anquan, 2023 The deep roadway with broken surrounding rock has problems such as insufficient strength of surrounding rock, serious floor heave, etc. It is urgent to strengthen the surrounding rock with effective support means.
Xiwu CAO +3 more
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Energy Science &Engineering, EarlyView.This study on close coal seams shows that multi‐seam mining increases the height of the fractured zone from approximately 26 m (single upper‐seam mining) to about 49 m. When the lower seam is mined after the extraction of the upper seam, the heights of both the caved zone and the fractured zone increase by approximately two times.
Xiaoyu Wu +4 more
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INFLUENCE ANALYSIS OF ROCK MECHANICAL PARAMETERS ON THE TBM PENETRATING RATE [PDF]
Civil Engineering Journal, 2019 To study the influences of rock mechanical parameters on the penetrating rate of a tunnel boring machine (TBM), a 3D discrete element model, namely, 3D distinct element code (3DEC), was used to build simulated models on rock fragments using a TBM cutter ...
Jin Lu, Xiaofan Liao
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Energy Science &Engineering, EarlyView.This study systematically investigates the fracture development mechanisms of water‐isolating soil layers under the coupled effects of repeated mining and groundwater seepage during the downward mining of shallow‐buried coal seams. The findings provide a theoretical basis for evaluating stratum stability and preventing roof water inrush.
Tao Yang +7 more
wiley +1 more source
Review and prospects of shear test of bolted rock joints
Deep Underground Science and Engineering, Volume 5, Issue 3, Page 635-656, September 2026.The laboratory shear test equipment, test method, and numerical simulation of bolted rock joints were summarized. The shortcomings and limitations of the current research were analyzed, and the research prospects were proposed. Abstract Rock bolting is a critical approach in geotechnical engineering for supporting weak rocks.
Shulin Ren +4 more
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Meitan kexue jishuAiming at the problem that roof deformation of cross fault roof cutting and pressure relief self-formed roadway is large and difficult to support, the mechanism of roof deformation of self-formed roadway in cross fault roof cutting and pressure-relieving
Zhibiao GUO +5 more
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Deep Underground Science and Engineering, Volume 5, Issue 3, Page 907-918, September 2026.Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei +4 more
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APPLICATION OF 3DEC ON THE MECHANICAL BEHAVIOR OF 3-DIMENSIONAL ROCK MASSES
, 2009 本文利用三維個別元素分析法程式(3DEC) ，模擬三維規則節理岩體在單軸與真三軸應力下之變形與強度特性。主要研究結果如下: (1) 3DEC 可用以定性分析三維節理岩體力學機制，利用該程式可簡易探討任何節理分佈位態下之力學行為，免除物理模模型模擬試驗之困難; (2) 多軸應力下岩體之異向性行為亦可透過3DEC 模擬分析，定性上均與物理現象相互一致; (3)在節理間距、勁度比較大的岩盤較需要比對二維與三維分析之差異。This paper uses the 3DEC to analyze the ...
楊長義; 陳志民; 陳錦清 +1 more
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Advances in Materials Science and Engineering, 2022 In order to study the law and mechanism of fault activation induced by deep continuous mining, this paper takes the fault activation caused by underground mining of Shizishan Copper Mine as the research object.
Yanhui Guo, Luo Luo, Hanhua Xu, Chun Zhu
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