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  1. No Access

    Article

    Mechanical Responses of Granite Under Confined Direct Tensile Testing: Fracture, Strength, Energy Conversion and Mechanism

    Rock fractures often occur in the coexisting compressive–tensile stress state. However, the influencing rules of compressive stress on the tensile strength and fracture behaviour under the condition of confine...

    Da Huang, Yang Liu, Duofeng Cen, Jianbing Peng… in Rock Mechanics and Rock Engineering (2023)

  2. No Access

    Article

    Mechanical behavior of the weak bedding plane within sandstone subjected to dynamic load of cyclic tension

    The wave sources such as explosion, impact, seismic and earthquake events in underground excavation, mining and rock slope engineering may cause the rock mass to suffer dynamic tensile stress, resulting in the...

    Duofeng Cen, Yage Li, Da Huang in Bulletin of Engineering Geology and the Environment (2022)

  3. No Access

    Article

    A mathematical description for determining the orientation of a discontinuity from the digital wall image of inclined borehole

    Aiming at the fact that the previous studies on the digital wall images were only limited to the vertical boreholes, this paper proposed a mathematical method to describe a discontinuity and determine its orie...

    Da Huang, Chenying Li, Zhu Zhong, Duofeng Cen… in Arabian Journal of Geosciences (2022)

  4. No Access

    Article

    Crack propagation mechanism of single- and double-flawed rock specimens under tension–shear stress condition

    The rock mass of underground engineering is often faced with tensile–shear failure disaster due to excavation. However, the failure mechanism of flawed rocks under tensile–shear stress state is not well unders...

    Duofeng Cen, Chang Liu, Chao Liu, Da Huang in Arabian Journal of Geosciences (2022)

  5. No Access

    Article

    Effect of confining pressure on deformation and strength of granite in confined direct tension tests

    To investigate the effect of confining pressure on tensile deformation and strength of rocks, a series of confined direct tension tests (CDTT) were conducted on cylindrical granite samples. The results indicat...

    Da Huang, Yang Liu, Duofeng Cen, Bin Zeng… in Bulletin of Engineering Geology and the En… (2022)

  6. No Access

    Article

    Tensile Strength and Fracture Surface Morphology of Granite Under Confined Direct Tension Test

    The tensile strength of rock is a crucial parameter for the stability assessment and reinforcement design of rock engineering, which is commonly determined by indirect tension test or uniaxial direct tension t...

    Yang Liu, Da Huang, Duofeng Cen, Zhu Zhong… in Rock Mechanics and Rock Engineering (2021)

  7. No Access

    Article

    Experimental Study on Failure Behaviour of Ligaments Between Strike-Inconsistent Fissure Pairs Under Uniaxial Compression

    Aiming at the fact that discontinuities in rock mass exhibit different orientations, uniaxial compression tests of resin specimens containing a strike-inconsistent fissure pair were carried out to investigate ...

    Da Huang, Zidai Yan, Zhu Zhong, Shilin Luo… in Rock Mechanics and Rock Engineering (2021)

  8. No Access

    Article

    Comparative Investigation on the Compression–Shear and Tension–Shear Behaviour of Sandstone at Different Shearing Rates

    Direct shear tests on rocks under compression–shear stress conditions have been widely conducted, whereas few have been performed under tension–shear stress conditions. However, rocks exhibit tension–shear fai...

    Da Huang, Duofeng Cen, Yixiang Song in Rock Mechanics and Rock Engineering (2020)

  9. No Access

    Article

    Direct Tensile Behavior of Limestone and Sandstone with Bedding Planes at Different Strain Rates

    To investigate the tensile behavior of rock bedding planes, a series of direct tensile tests were conducted on cylindrical limestone and sandstone specimens with a distinct bedding plane perpendicular to the a...

    Duofeng Cen, Da Huang, Yixiang Song, Qinghui Jiang in Rock Mechanics and Rock Engineering (2020)

  10. No Access

    Article

    Direct Shear Tests of Sandstone Under Constant Normal Tensile Stress Condition Using a Simple Auxiliary Device

    Tension–shear failure is a typical failure mode in the rock masses in unloading zones induced by excavation or river incision, etc., such as in excavation-disturbed zone of deep underground caverns and superfi...

    Duofeng Cen, Da Huang in Rock Mechanics and Rock Engineering (2017)

  11. No Access

    Article

    Shear deformation and strength of the interphase between the soil–rock mixture and the benched bedrock slope surface

    A series of benched excavations were typically carried out on the bedrock slope surface to improve the stability of the soil–rock mixture (S–RM) fill slope. It is difficult to devise an in situ, large-scale di...

    Duofeng Cen, Da Huang, Feng Ren in Acta Geotechnica (2017)

  12. No Access

    Article

    Numerical Modeling of Earthquake-Induced Landslide Using an Improved Discontinuous Deformation Analysis Considering Dynamic Friction Degradation of Joints

    Discontinuous deformation analysis (DDA) as an efficient technique has been extensively applied in the dynamic simulation of discontinuous rock mass. In the original DDA (ODDA), the Mohr–Coulomb failure criter...

    Da Huang, Yixiang Song, Duofeng Cen, Guoyang Fu in Rock Mechanics and Rock Engineering (2016)

  13. No Access

    Article

    Step-path failure of rock slopes with intermittent joints

    Step-path failure is a typical instable mode of rock slopes with intermittent joints. To gain deeper insight into the step-path failure mechanism, six rock slopes with different intermittent joints are studied...

    Da Huang, Duofeng Cen, Guowei Ma, Runqiu Huang in Landslides (2015)