Showing 321 - 340 results of 2,575 for search '"rock ', query time: 0.08s Refine Results
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    Weathering Processes and Mechanisms of Low-Grade Metamorphic Rock following Freeze-Thaw Processes by Guopeng Wu, Kai Cui, Pei Wang, Wenwu Chen

    Published 2023-01-01
    “…A remarkable risk in the field of rock engineering is the natural exposure of low-grade metamorphic rock to the freeze-thaw process. …”
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    Article
  5. 325

    Bolt-Grout Interactions in Elastoplastic Rock Mass Using Coupled FEM-FDM Techniques by Debasis Deb, Kamal C. Das

    Published 2010-01-01
    “…The finite element procedure incorporates elasto-plastic concepts with Hoek and Brown yield criterion and has been applied for rock mass. Bolt-grout interactions are evaluated based on finite difference method and are embedded in the elasto-plastic procedures of FEM. …”
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    Article
  6. 326

    Research on Acoustic Emission and Electromagnetic Emission Characteristics of Rock Fragmentation at Different Loading Rates by Fujun Zhao, Yu Li, Zhouyuan Ye, Yong Fan, Siping Zhang, Haifan Wang, Yonghong Liu

    Published 2018-01-01
    “…The relationships among the generation of acoustic emission, electromagnetic emission, and the fracture stress of rock grain are investigated, which are based on the mechanism of acoustic emission and electromagnetic emission produced in the process of indenting rock. …”
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    Article
  7. 327

    Corrosion Behavior and Failure Mechanism of Prestressed Rock Bolts (Cables) in the Underground Coal Mine by Qiong Wang, Fengnian Wang, Aiwu Ren, Rui Peng, Jian Li

    Published 2021-01-01
    “…Premature failure of rock bolts (cables) due to stress corrosion cracking (SCC) is a phenomenon that has been reported to occur in the underground environment. …”
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    Article
  8. 328

    Analyzing and Estimating Thermal Conductivity of Sedimentary Rocks from Mineral Composition and Pore Property by Boning Tang, Chuanqing Zhu, Nansheng Qiu, Yue Cui, Sasa Guo, Xin Luo, Baoshou Zhang, Kunyu Li, Wenzheng Li, Xiaodong Fu

    Published 2021-01-01
    “…In this study, thermal conductivities of 128 rock samples located in the Xiong’an New Area and Tarim Basin were measured using the optical scanning and transient plane source methods. …”
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    Article
  9. 329

    Study on Deformation Evolution Characteristics of Reverse-Dip Rock Slope under the Influence of Rainfall by Jiabing Zhang, Liangfu Xie, Xuejun Liu, Yongjun Qin, Liming Wu

    Published 2021-01-01
    “…In Southwestern China, there exists deep river valleys and abundant rainfall, which leads to a large number of reverse-dip rock slopes. In order to investigate the evolution characteristics of toppling deformation of reverse-dip slope under the influence of rainfall, and a typical reverse-dip slope was taken as an engineering case. …”
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    Article
  10. 330

    Effect of Morphology Parameter Determination on Contact Behavior of Rock Joints under Compressive Loading by Feng Tian Tang, Zhi Cheng Tang

    Published 2021-01-01
    “…The closure behavior of rock joints is of critical importance to the study of hydromechanical behaviors and geophysical properties of jointed rock masses. …”
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    Article
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    Thermal buffering-controlled temperature variation between Mg–Al-rich rocks and migmatites by Samantha March, Martin Hand, Laura Morrissey, David Kelsey

    Published 2025-01-01
    “…Temperature versus enthalpy modelling of these samples along simple prograde P–T paths imply migmatisation slows the rate of temperature increase relative to rocks that do not melt. We speculate refractory rocks in the present study are created through early hydrothermal alteration and metamorphism, resulting in melt-resistant bulk compositions. …”
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    Article
  13. 333

    Prediction of shallow bit position based on vibration signal monitoring of bit broken rock by Jinping Yu, Deyong Zou

    Published 2021-01-01
    “…The speed of drilling has a great relationship with the rock breaking efficiency of the bit. Based on the above background, the purpose of this article is to predict the position of shallow bit based on the vibration signal monitoring of bit broken rock. …”
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    Article
  14. 334

    Research on the Evolution Characteristics of Rock Mass Response from Open-Pit to Underground Mining by Jiabo Geng, Qihang Li, Xiaoshuang Li, Tao Zhou, Zhifang Liu, Yulin Xie

    Published 2021-01-01
    “…In order to systematically analyze the movement, deformation, and failure laws of surrounding rocks in underground stopes. The room and pillar method is used to excavate and stop the ore bodies in the mining area. …”
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    Article
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    Seismic Response Analysis of Jointed Rock Slope under Pulse-Like Ground Motions by Xijun Jia, Yu Zhang, Ziyi Zhang

    Published 2024-01-01
    “…Because of the forward directivity effects, energy concentration, and fling step effect of pulse-like ground motions, it is easy to cause landslide of jointed rock slope. To reveal the progressive failure mechanism of jointed rock slope under pulse-like ground motions, a 3D discrete element numerical model of jointed rock slope in the northern Yunnan province was established to analyze the acceleration, dynamic displacement, and failure modes under bidirectional pulse-like ground motions. …”
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    Article
  17. 337

    Parametric Evaluation of Simultaneous Effects of Damaged Zone Parameters and Rock Strength Properties on GRC by Ali Ghorbani, Hadi Hasanzadehshooiili, Amin Eslami

    Published 2021-01-01
    “…In this study, a new, simple, and accurate method is proposed for prediction of GRC of circular tunnels constructed in the damaged, elastoplastic rock masses obeying softening in the plastic zone. …”
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    Article
  18. 338

    Particle Flow Analysis of Mechanical Properties and Failure Behaviour in Composite Rock Strata with Holes by Chuanwei Zang, Hongmo Zhu, Miao Chen, Shuo Yang, Liu Yang, Jia Zhou, Zuoru Zhang, Yang Chen

    Published 2021-01-01
    “…Understanding the deformation failure behavior of the composite rock strata has important implications for deep underground engineering construction. …”
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    Article
  19. 339

    Experimental and Simulation Study on Breaking Rock under Coupled Static Loading and Ultrasonic Vibration by Yan Zhao, Congshan Zhang, Zengzeng Zhang, Ke Gao, Dajun Zhao, Zihang Sun, Xiaoshu Lv, Yu Zhou, Guobing Zhai

    Published 2022-01-01
    “…In recent years, ultrasonic vibration rock-breaking technology has aroused great interest in tunnel excavation and underground mineral. …”
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    Article
  20. 340

    Numerical Simulation of Mechanical Characteristics of Roadway Surrounding Rock under Dynamic and Static Loading by Ce Jia, Sheng Li, Chaojun Fan, Jinbao Tang

    Published 2021-01-01
    “…Mechanical characteristics of roadway surrounding rock under different stress wave disturbances are the key to design roadway supporting scheme. …”
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    Article