Showing 381 - 400 results of 2,575 for search '"Rock ', query time: 0.06s Refine Results
  1. 381

    Automatic Rock Classification Algorithm Based on Ensemble Residual Network and Merged Region Extraction by Chenlu Guo, Zhiyuan Li

    Published 2022-01-01
    “…Lithology identification of rocks is an important part in the field of oil and gas exploration, mineral exploration, and geological analysis. …”
    Get full text
    Article
  2. 382

    Research on the Deformation Mechanism of Mining Roadway Stratiform Surrounding Rock with Nonuniform Stress Field by Yongxin Sun

    Published 2021-01-01
    “…Aiming at the failure problems of mining roadway stratiform surrounding rock influenced by asymmetrical high stress, firstly, the rock instability conditions of different structural plane angles were summarized based on the mechanical model of rock joints and instability criterion. …”
    Get full text
    Article
  3. 383

    Influence of Base Rock Deterioration on Tunnel Bottom Structure Damage under Train Excitation by Zi-Qiang Li, Wei-Wei Huang, Zheng Li, Jian-Wen Feng, Hang Zhang, Qi Li

    Published 2023-01-01
    “…When the surrounding rock is a partial cavity, the damage to the bottom structure intensifies and develops toward the surrounding rock’s deterioration position. …”
    Get full text
    Article
  4. 384

    Study on Deflection of Surrounding Rock Force Chain and Disaster Mechanism of Instability in Deep Stope by Guang-Xiang Xie, Anying Yuan, Lei Wang

    Published 2020-01-01
    “…The stability of the shell determines the stability of the surrounding rock, and the instability of the shell will lead to dynamic disasters such as strong dynamic pressure or rock burst.…”
    Get full text
    Article
  5. 385

    Height of Mining-Induced Fractured Zones in Overlying Strata and Permeability of Rock with Nonpenetrative Fractures by Yu Liu, Qimeng Liu, Wenping Li, Youbiao Hu

    Published 2020-01-01
    “…The characteristics of fractured rock within NFZ and the determination method of its height were studied. …”
    Get full text
    Article
  6. 386

    Study on the Variation Rule and Characteristics of Pore Water Pressure in the Failure Process of Saturated Rock by Yuezheng Zhang

    Published 2021-01-01
    “…With the development of tunnels and other engineering constructions into the deep strata, rock masses are more prone to dynamic damage such as rock bursts under in situ conditions and excavation disturbances. …”
    Get full text
    Article
  7. 387

    Evaluation and Application of Surrounding Rock Stability Based on the Improved Weighting Multidimensional Cloud Model by Jing Long Li, Chao Yuan, Bo Zhang, Bin Sui

    Published 2021-01-01
    “…Aiming at the uncertainty in the existing tunnel surrounding rock stability evaluation methods and the inability to make scientific explanations in the process of determining the weights of multiple evaluation indicators, this paper combines subjective weighting based on the nonlinear characteristics of the surrounding rock stability evaluation criteria. …”
    Get full text
    Article
  8. 388

    Study on Mechanical Response and Stability Algorithm of Soft and Hard Rock Interbedded Slope Excavation by Qingyang Ren, Xin Meng

    Published 2022-01-01
    “…The research shows that, during the excavation, the distribution characteristics of stress, strain, plastic zone, and horizontal displacement along the bedding plane are obvious; the stress is concentrated in the hard rock layer; however, the strain and plastic zone are concentrated in the soft rock layer. …”
    Get full text
    Article
  9. 389
  10. 390

    Fracturing of the Soft Rock Surrounding a Roadway Subjected to Mining at Kouzidong Coal Mine by Zhili Su, Wenbing Xie, Shengguo Jing, Xingkai Wang, Qingteng Tang

    Published 2020-01-01
    “…The fracture development and distribution around the deep soft rock roadway are pivotal to any underground design. …”
    Get full text
    Article
  11. 391

    Analysis of Surrounding Rock Creep Effect on the Long-Term Stability of Tunnel Secondary Lining by Xiaoqian Zhang, Chengmin Wei, Heng Zhang

    Published 2021-01-01
    “…The secondary lining failure of deep buried soft rock tunnel often occurs, which is obviously related to the time factor. …”
    Get full text
    Article
  12. 392
  13. 393

    Uniaxial Compression Mechanical Analysis of Cylindrical Rock Specimens Based on Space Axisymmetric Problem by Jianguang Li, Yanchun Wang, Chuanqi Su

    Published 2021-01-01
    “…The common failure forms in the uniaxial compression test of standard cylindrical rock specimens are symmetric cone failure and splitting failure. …”
    Get full text
    Article
  14. 394

    Petrology of Oligocene Lalehzar igneous rocks in the southeast of Saveh-Naein-Jiroft magmatic belt by Fatemeh Sepidbar, Bahareh Borouzi Niyat

    Published 2024-12-01
    “…Lalehzar igneous rocks are located in the southeast of Iran, the SE of Saveh-Naein-Jiroft magmatic belt. …”
    Get full text
    Article
  15. 395
  16. 396

    Diffusively-Coupled Rock-Paper-Scissors Game with Mutation in Scale-Free Hierarchical Networks by Takashi Nagatani, Genki Ichinose

    Published 2020-01-01
    “…We present a metapopulation dynamic model for the diffusively-coupled rock-paper-scissors (RPS) game with mutation in scale-free hierarchical networks. …”
    Get full text
    Article
  17. 397

    Investigation of Relation between Fracture Scale and Acoustic Emission Time-Frequency Parameters in Rocks by Junwen Zhang

    Published 2018-01-01
    “…The evaluation model of rock fracture scale based on AE energy and dominant-frequency was established by using the intrinsic relation between the scale of rock fracture and the time-frequency parameters of rock mass. …”
    Get full text
    Article
  18. 398

    Experimental Study on the Effect of Compaction Work and Defect on the Strength of Soil-Rock Mixture Subgrade by Xin Yan, Wei Zhan, Zhi Hu, Yiqiang Yu, Danqiang Xiao

    Published 2021-01-01
    “…Soil-rock mixture is a common filling material for earth dam and subgrade. …”
    Get full text
    Article
  19. 399

    Research on Mechanical Properties and Macroscopic Fracture Evolution of Rock with Different Joint Plane Features by Yongjiang Yu, Jingjing Liu, Pengbo Wang, Yuntao Yang, Shangqing Zhao

    Published 2022-01-01
    “…To analyze the safety of geological engineering, experimental research on the mechanical properties of the rock joint plane is critical. In this paper, triaxial compression tests are carried out on rock specimens with the different prefabricated joint planes, including different dip angles, roughness, confining pressure and surrounding rock strength, and the strength characteristics, failure modes, stress evolution laws, and crack propagation laws are revealed. …”
    Get full text
    Article
  20. 400

    Nonlinear Seismic Response Based on Different Site Types: Soft Soil and Rock Strata by Meng Xiao, Jie Cui, Ya-dong Li, Van-Quang Nguyen

    Published 2022-01-01
    “…The amplification effect is more obvious in rock layer sites under strong earthquakes, and the “weakening” effect of soft soil sites is more obvious. …”
    Get full text
    Article