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Dizhen xuebao, 2022 安德逊理论表明地震的共轭破裂现象可以用库仑准则解释，断层面夹角与地下岩石内摩擦系数之间存在简单的定量关系。基于本文提出的通过共轭地震计算介质内摩擦系数的方法，对国内外19个具有X形或不完整的X形（L形）共轭破裂特征的地震进行系统性分析，与震源机制、区域应力轴方向等资料进行对比，确定共轭断层面，进而确定共轭面夹角并计算岩石的内摩擦系数。研究结果进一步证实了天然地震的共轭破裂与实验室岩石破裂具有较好的一致性，给出了库仑准则与安德逊理论在大尺度下也成立的证据 ...
Anjian Wang, Yun-tai Chen
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Experimental study on mix proportion of transparent similar materials for rock mass [PDF]
, 2023 Traditional rock mass is opaque and the internal deformation and fracture process cannot be observed directly, using transparent materials to make similar models is an effective solution.
Binyu LUO +4 more
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Research and Application of Geotechnical Data Consistency in Marine Site Exploration [PDF]
, 2023 [Introduction] The current marine geological exploration, particularly the geotechnical investigation, often follows traditional experiences without a clear objective, and lacks the evaluations of soil sample disturbance and test results.
Feng LIANG +4 more
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Approximate solution of plastic zone boundary of surrounding rock of circular roadway considering axial stress [PDF]
, 2023 In order to study the boundary of plastic zone of surrounding rock of a roadway considering axial stress, based on Mohr-Coulomb criterion, the implicit equation of plastic zone boundary of surrounding rock of circular roadway considering axial stress is ...
Guangdong ZHOU +7 more
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Jixie chuandong, 2021 针对某航空发动机用双列角接触球轴承运行过程中摩擦功耗的变化，基于滚动轴承动力学理论，建立了双列角接触球轴承动力学微分方程组，采用预估-校正Adams-Bashforth-Moulton多步积分算法进行求解，分析了轴承工况参数和结构参数对其摩擦功耗的影响规律，并通过正交分析方法对轴承结构参数进行了优化。结果表明，随着轴承转速、轴向载荷、预紧量的增加，轴承总摩擦功耗均呈增大的趋势；随着滚动体个数、内外沟曲率半径系数的增加，轴承总摩擦功耗呈现减小的趋势；内沟曲率半径系数对轴承摩擦功耗影响最大 ...
刘悦阳, 杨海生, 苏冰, 邓四二
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Mechanism of grouting diffusion and consolidation of rock mass based on D-Rb-C coupled model [PDF]
, 2023 Grouting reinforcement is an effective method for controlling the stability of engineering rock mass. The mechanism is mainly to inject or infiltrate the grout into the fracture of rock mass to form a grouting entity, and strengthen the stability of rock
Bin LIU +7 more
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Mechanical Properties of Medicago Sativa and Euphorbia Hypericifolia Root-Soil Complex [PDF]
, 2023 [Objective] The effects of soil moisture content and root area ratio on the soil consolidation effect of Medicago sativa and Euphorbia hypericifolia root systems and the interaction mechanism of root-soil were studied in order to provide scientific basis
Hai Long, Tan Shilin, Xu Bo
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Xibei Gongye Daxue Xuebao, 2022 土压力分布规律与计算方法一直是加筋土挡墙研究中的难点问题。通过有限元方法探究了不同工况下加筋土挡墙主动土压力的大小和分布规律。结合内、外摩擦角的动态发挥提出针对非极限状态下的土压力计算方法, 并与传统理论公式解、有限元数值解和实测结果进行对比, 验证其合理性。结果表明: 挡墙土压力数值大小受到土工格栅刚度和层数影响, 呈现出随配筋层数和刚度增加, 土压力逐渐减小的趋势。挡墙土压力大小与深度呈负相关, 不同工况下加筋土挡墙土压力随深度变化趋势差异不大, 加筋效果主要体现在挡墙上部 ...
LI Lihua +4 more
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Shuitu Baochi Xuebao, 2022 为探究不同植物根-土复合体抗剪强度的差异性及各因素对其的影响程度, 选取汶川县针叶林、阔叶林、灌丛、草地4种不同植被覆盖区为研究区, 通过野外制取16种优势植物根-土复合体和无根裸土原状试样并开展室内快剪试验。分析了汶川县典型植物根系对土体抗剪强度和抗变形能力的增强作用, 运用灰色关联法分析影响复合体抗剪强度的因素。结果表明: (1)16种植物根系均能在一定程度上提高土体抗剪强度和抗变形能力, 且主要通过提高土体黏聚力增强其抗剪强度; 根-土复合体黏聚力均大于裸土, 其增幅为6.09%~153.27%,
孙庆敏 +4 more
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Slope safety, stability evaluation, and protective measures based on machine learning [PDF]
, 2022 In recent years, the slope instability has brought immeasurable costs to production and life of human. As a result, it is essential to correctly understand, analyze, and design the slope reasonably, and implement appropriate protective measures to ...
Chong-chong QI +2 more
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