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  1. Article

    Open Access

    Effect of natural fractures on mechanical properties and fracture patterns of shale at microscopic scale: an example from the Lower Cambrian Niutitang formation in Qianbei region

    In order to explore the influence of natural fractures on the mechanical properties and failure modes of shale at the micro scale, uniaxial compression numerical experiments were conducted on the shale of the ...

    Zhong-Hu Wu, Chao Yang, Yu-Jun Zuo… in Geomechanics and Geophysics for Geo-Energy… (2024)

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    Article

    Fracture Mechanical Properties of Three—Dimensional Irregular Sandstone Particles Based on Digital-Image

    The irregular shape of the sample can significantly affect the compression process. Establishing a numerical model of specimens based on real meso-structure is challenging because of the irregularity and the h...

    Kai-wen Shi, Yu-jun Zuo, Wen-ji-bin Sun, Hao Liu… in Geotechnical and Geological Engineering (2022)

  3. No Access

    Article

    Effect of confining pressure on the fracture mechanical properties of multi-particle sandstone

    Mechanical properties and the rupture process of rock materials are critical issues for mining engineering that influence efficient ore mining. It, however, may cause energy-saving and emission reduction in th...

    Kai-wen Shi, Yu-jun Zuo, Wenjibin Sun, Hao Liu, Chao Pan… in Arabian Journal of Geosciences (2022)

  4. No Access

    Article

    Fractal characteristics of rock fragmentation at strain rate of 100 – 102 s−1

    The fragmentation test of granite subjected to strain rate of 100 – 102 s−1 was carried out using split Hopkinson pressure bar(SHPB) whose diameter is 75 mm, where half-sine loading waveform was performed. The si...

    Zi-long Zhou, **-bing Li, Yu-jun Zuo… in Journal of Central South University of Tec… (2006)

  5. No Access

    Article

    Catastrophe model and its experimental verification of static loading rock system under impact load

    According to the catastrophe model for impact buckling of static loading structures, a new catastrophe model for impact loading failure of a static loading rock system was established, and one dimension (1D) c...

    Yu-jun Zuo, **-bing Li, Wei-hua Wang… in Journal of Central South University of Tec… (2006)

  6. No Access

    Article

    Damage and failure rule of rock undergoing uniaxial compressive load and dynamic load

    For understanding the damage and failure rule of rock under different uniaxial compressive loads and dynamic loads, tests on red sandstone were carried out on Instron 1342 electro-servo controlled testing syst...

    Yu-jun Zuo, **-bing Li, Zi-long Zhou… in Journal of Central South University of Tec… (2005)

  7. No Access

    Article

    Determination of ejection velocity of rock fragments during rock burst in consideration of damage

    The ejection velocity of rock fragments during rock burst, one of the important indexes representing the rock burst strength, is used most conveniently in the supporting design of tunnel with rock burst tenden...

    Yu-jun Zuo, **-bing Li, Zi-long Zhou in Journal of Central South University of Technology (2005)