Showing 861 - 880 results of 2,575 for search '"Rock ', query time: 0.09s Refine Results
  1. 861

    Implementation of a Time-Domain Random-Walk Method into a Discrete Element Method to Simulate Nuclide Transport in Fractured Rock Masses by Yuexiu Wu, Quansheng Liu, Andrew H. C. Chan, Hongyuan Liu

    Published 2017-01-01
    “…It is essential to study nuclide transport with underground water in fractured rock masses in order to evaluate potential radionuclide leakage in nuclear waste disposal. …”
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  2. 862

    Study on the Characteristics of Self-Stabilizing Height Distribution for Deep Foundation Pit Vertical Sidewall in Binary Strata of Upper Soil and Lower Rock by Zhang Ziguang, Yihang Li, Jiesheng Zhang, Tao Xu, Guangyong Cao, YiKang Xu

    Published 2021-01-01
    “…A new idea that the vertical soil sidewall height (Hs) and the vertical rock sidewall height (Hr) are used as two independent evaluation indexes, respectively, for deep foundation pit stability in binary strata of upper soil and lower rock has been put forward. …”
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  3. 863
  4. 864

    A Rock Fracturing Method Using High-Pressure Gas Expansion: Case Study on Its Application in Hangzhou-Lin’an Intercity Railway by Dunwen Liu, Yu Tang, Caiwu Cai, Yinghua Jian

    Published 2021-01-01
    “…Analysis was conducted on the parameters of rock fracturing, rock fracturing effects of this method, and its impact on the vibration of surrounding buildings. …”
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    Article
  5. 865

    Influence of Hydrothermal and Pyrolysis Processes on the Transformation of Organic Matter of Dense Low-Permeability Rocks from Domanic Formations of the Romashkino Oil Field by Galina P. Kayukova, Anastasiya N. Mikhailova, Nailia M. Khasanova, Vladimir P. Morozov, Alexey V. Vakhin, Nafis A. Nazimov, Oleg S. Sotnikov, Rais S. Khisamov

    Published 2018-01-01
    “…The model experiments regarding the conversion of organic matters from carbonate rock samples of Dankov-Lebedyan deposits of Zelenogorskaya area and siliceous-carbonate rocks of Semiluki-Mendym deposits of Berezovskaya area of Domanic formations of Romashkino oil field were carried out. …”
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  6. 866
  7. 867

    The Transition from the Stone Age to Iron Age in East Africa: Excavations at Nkuba Rock Shelter, Bussi Island, Lake Victoria, Uganda. by Tibesasa, Ruth, Shipton, Ceri, Jennings, Christopher, Karuhanga, Samuel, Crowther, Alison

    Published 2024
    “…Here we present the results of excavations carried out in 2006 at Nkuba rock shelter on Bussi Island on Lake Victoria, Uganda, where both Late Stone Age lithic materials dating ca. 1411-1275 BC, and Early Iron Age (EIA) Urewe ceramics dating between ca. 1303-1123 BC and ca. 771-887 AD were found. …”
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  8. 868

    Unified Analytical Solutions of Circular Tunnel Excavated in an Elastic-Brittle-Plastic Rock Mass considering Blast-Induced Damage and Dead Weight Loading by Yue Cao, Liang Chen, Jinhai Xu, Chong Li, Wei Zhang

    Published 2021-01-01
    “…This paper presents a new closed-form solution for analyzing the stress and deformation of deep circular tunnel excavated in elastic-brittle rock mass with the consideration of the rock gravity and damage zone by using the unified strength criterion. …”
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  9. 869

    Numerical Simulation of Split-Hopkinson Pressure Bar Tests for the Combined Coal-Rock by Using the Holmquist–Johnson–Cook Model and Case Analysis of Outburst by Beijing Xie, Dongxin Chen, Hao Ding, Guangyu Wang, Zheng Yan

    Published 2020-01-01
    “…In the coal and rock dynamic disasters, such as the rock burst, dynamic load damage often acts simultaneously on the combined coal and rock mass. …”
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  10. 870
  11. 871
  12. 872
  13. 873

    Study on the Mechanical Relationship among the Backfilling Mining Support, Roof Rock Beam, and Gangue Filling Body in Comprehensive Mechanized Filling Mining Process by Zhimin Huang, Lei Zhang, Zhanguo Ma

    Published 2020-01-01
    “…The foundation coefficient of each part is determined, and the subsidence of each part of roof rock beam is calculated. It is found that the initial filling height is the decisive factor to control the subsidence and migration stability of each part of the roof rock beam. …”
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  14. 874

    The Oil-Bearing Strata of Permian Deposits of the Ashal’cha Oil Field Depending on the Content, Composition, and Thermal Effects of Organic Matter Oxidation in the Rocks by Galina P. Kayukova, Anastasiya N. Mikhailova, Igor P. Kosachev, Dmitry A. Emelyanov, Mikhail A. Varfolomeev, Boris V. Uspensky, Alexey V. Vakhin

    Published 2020-01-01
    “…The features of the oil-bearing capacity of the productive strata of Permian deposits in the interval of 117.5-188.6 m along the section of individual wells of the Ashal’cha field of heavy superviscous oil (Tatarstan) were revealed depending on the content, composition, and thermal effects of organic matter (OM) oxidation in the rocks. It is shown that the rocks are very heterogeneous in their mineral composition and in the content of both free hydrocarbons by extraction with organic solvents and insoluble OM closely associated with the rock. …”
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  15. 875

    Experimental Study on the Fracture Evolution Processof Rock-like Specimens Containing a Closed RoughJoint Based on 3D-Printing Technology by Jiawei Liu, Haijian Su, Hongwen Jing, Chengguo Hu, Qian Yin

    Published 2020-01-01
    “…In order to overcome the disadvantage of traditional joint fabrication method—inability to reproduce the rough surfaces of practical rock joints—3D-printing technology was applied to restructure five kinds of rough joint according to the failure surface formed by the triaxial prepeak unloading test in this study. …”
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  16. 876
  17. 877

    Spatiotemporal Evolution Characteristics of Fluid Flow through Large-Scale 3D Rock Mass Containing Filling Joints: An Experimental and Numerical Study by Qian Yin, Hongwen Jing, Tantan Zhu, Lizhou Wu, Haijian Su, Liyuan Yu

    Published 2021-01-01
    “…This study analyzes the spatiotemporal evolution characteristics of seepage through a large-scale rock mass containing a filling joint. Firstly, a conceptual model was established to characterize the geomechanical occurrence of a typical water-resistant slab adjacent to a water-bearing structure. …”
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  18. 878

    Experimental Studies on Cracking and Local Strain Behaviors of Rock-Like Materials with a Single Hole before and after Reinforcement under Biaxial Compression by Jian Liao, Yanlin Zhao, Liming Tang, Qiang Liu

    Published 2021-01-01
    “…In deep underground engineering, circular roadways are widely used; many rock engineering problems can usually be simplified as mechanical analysis of rock structures with holes. …”
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  19. 879

    What if writing rock history was also writing with “ifs”? Or how Lester Bangs liked playing a trick on his reader’s perception of time by Maud Berthomier

    Published 2013-12-01
    “…It is usually accepted that rock history is divided into cycles. However, from the beginning of his work, American rock critic Lester Bangs took a radically different look at the manner in which that history should be written. …”
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  20. 880

    Experimental Study on Comprehensive Real-Time Methods to Determine Geological Condition of Rock Mass along the Boreholes while Drilling in Underground Coal Mines by Ganggang Niu, Kai Zhang, Bosong Yu, Yanlong Chen, Yu Wu, Jiangfeng Liu

    Published 2019-01-01
    “…In the borehole camera system, the photos of the rock mass along the borehole could be well captured, and the identified rock mass condition was used to verify the results of the MWD and VMWD systems. …”
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