Showing 261 - 280 results of 2,575 for search '"Rock ', query time: 0.06s Refine Results
  1. 261

    Deformation and Failure Mechanism of Surrounding Rock in Mining-Influenced Roadway and the Control Technology by Jicheng Feng, Shuaifeng Yin, Zhiheng Cheng, Jianjun Shi, Haoyu Shi, Haitao Xu, Shuying Guo

    Published 2021-01-01
    “…For the surrounding rock control in the mining-influenced roadway, it is advised to take the following methods: firstly, it is necessary to consider how to reduce or remove the influence of mining on surrounding rock, improve the stress environment of surrounding rock, and reduce the failure depth of the plastic zone, so as to better maintain the roadway. …”
    Get full text
    Article
  2. 262
  3. 263

    Biot Theory Yields a Specific Storage Coefficient With Natural Deformation of Rock by Guangquan Li, Simeng Yang, Li Wang

    Published 2024-01-01
    “…The traditional specific storage coefficient (Ss) was defined under two assumptions. One is that aquifer rock deforms only in the vertical direction, and the other is that the average rock stress remains unchanged. …”
    Get full text
    Article
  4. 264
  5. 265

    Mechanism and Control of Roadway Floor Rock Burst Induced by High Horizontal Stress by Dongming Guo, Xinchao Kang, Zhiying Lu, Qiyu Chen

    Published 2021-01-01
    “…According to the characteristics of rock burst of high horizontal stress roadway floor, the rock burst mechanism of roadway floor was studied with the background of south track roadway Xing’an mine. …”
    Get full text
    Article
  6. 266

    Rock Stability Assessment Based on the Chronological Order of the Characteristic Acoustic Emission Phenomena by Penghai Zhang, Tianhong Yang, Tao Xu, Qinglei Yu, Jingren Zhou, Wancheng Zhu

    Published 2018-01-01
    “…Sudden inelastic deformations in rock are associated with acoustic emission (AE). …”
    Get full text
    Article
  7. 267

    Study on the Influences of Empty Hole and In Situ Stress on Blasting-Induced Rock Damage by Ningkang Meng, Jian-biao Bai, Wenlong Shen, Yong Chen, Xiangyu Wang, Wenda Wu, Bowen Wu

    Published 2021-01-01
    “…In this paper, a numerical simulation LS-DYNA was carried out to investigate the influence of in situ stress and empty hole on rock fracture development. Based on the simulation process and existing laboratory data, the micromechanical properties of the Riedel-Hiermaier-Thoma (RHT) model were calibrated. …”
    Get full text
    Article
  8. 268

    Numerical Calculation of Fracture Seepage in Rough Rock and Analysis of Local Pressure Drop by Gang Chen, Ling Ma, Hongsheng Gong, Fengqiang Luo

    Published 2021-01-01
    “…The seepage performance of a rock mass mainly depends on the rock fractures developed in it. …”
    Get full text
    Article
  9. 269

    Research on Control Mechanism of Surrounding Rock of Deep Gob-Side Entry Retaining by Jianxiong Liu, Jingke Wu, Yun Dong, Yanyan Gao, Jihua Zhang, Weizhong He, Jiarui Chen

    Published 2021-01-01
    “…To address the large deformation of the surrounding rock of deep gob-side entry retaining under high stress, lithological characteristics of the surrounding rock and failure model of support body and their evolutionary processes are analyzed through field investigation and theoretical analysis. …”
    Get full text
    Article
  10. 270

    Research on the Rockburst Tendency and AE Characteristics of Inhomogeneous Coal-Rock Combination Bodies by Yun-liang Tan, Wei-yao Guo, Qing-heng Gu, Tong-bin Zhao, Feng-hai Yu, Shan-chao Hu, Yan-chun Yin

    Published 2016-01-01
    “…In order to research the influence of homogeneity on the rockburst tendency and on AE characteristics of coal-rock combination body, uniaxial compressive tests of inhomogeneous coal-rock combination bodies obeyed by the Weibull distribution were simulated using particle flow code (PFC2D). …”
    Get full text
    Article
  11. 271
  12. 272

    Optimized Analysis Method for Evaluating the Shear Strength Parameters of Rock Joint Surfaces by Yao Xiao, Huafeng Deng, Jingcheng Fang, Hengbin Zhang, Jianlin Li

    Published 2020-01-01
    “…The results obtained from the mechanical test of rock samples inevitably suffer dispersion owing to discrepancies between test specimens. …”
    Get full text
    Article
  13. 273

    Anchor Dragging Analysis of Rock-Berm Using Smoothed Particle Hydrodynamics Method by Jinho Woo, Dongha Kim, Won-Bae Na

    Published 2015-01-01
    “…This safety is accomplished by the four layers (related to rock-berm height) and the number of rock particles at each layer (related to rock-berm widths).…”
    Get full text
    Article
  14. 274
  15. 275
  16. 276

    Surrounding Rock Movement of Steeply Dipping Coal Seam Using Backfill Mining by Wenyu Lv, Kai Guo, Jianhao Yu, Xufeng Du, Kun Feng

    Published 2021-01-01
    “…The movement of the overlying strata in steeply dipping coal seams is complex, and the deformation of roof rock beam is obvious. In general, the backfill mining method can improve the stability of the surrounding rock effectively. …”
    Get full text
    Article
  17. 277

    Study on Impact Tendency of Coal and Rock Mass Based on Different Stress Paths by Chengliang Zhang, Danyong Ye, Ping Yang, Shunchuan Wu, Chao Wang

    Published 2020-01-01
    “…With the increased mining depth, the dynamic disaster of rock burst in coal mines has become increasingly prominent, and the impact tendency of coal and rock mass in deep coal seam mining is a necessary condition for the occurrence of rock burst and an important index to measure the failure of coal and rock mass. …”
    Get full text
    Article
  18. 278

    Investigation on the Vibration Effect of Shock Wave in Rock Burst by In Situ Microseismic Monitoring by Mingshi Gao, Hongchao Zhao, Yichao Zhao, Xiaojun Gao, Xiangyu Wang

    Published 2018-01-01
    “…Rock burst is a physical explosion associated with enormous damage at a short time. …”
    Get full text
    Article
  19. 279

    Study on Nonlinear Damage Creep Model for Rocks under Cyclic Loading and Unloading by Liangliang Zhang, Xiaojian Wang

    Published 2021-01-01
    “…To determine the nonlinear creep characteristics of rocks under cyclic loading and unloading conditions, a nonlinear Kelvin model and damage viscoplastic model are proposed. …”
    Get full text
    Article
  20. 280