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Volume 42 Issue S2
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XIAO Wei-min, HUANG Wei, HAN Jun-cheng, TIAN Meng-ting. Experimental study on one-shot moulding method for preparation of irregular columnar jointed rock mass[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(S2): 106-111. DOI: 10.11779/CJGE2020S2019
Citation: XIAO Wei-min, HUANG Wei, HAN Jun-cheng, TIAN Meng-ting. Experimental study on one-shot moulding method for preparation of irregular columnar jointed rock mass[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(S2): 106-111. DOI: 10.11779/CJGE2020S2019
shu

Experimental study on one-shot moulding method for preparation of irregular columnar jointed rock mass

  • 1.

    School of Civil Engineering, Sichuan Agricultural University, Dujiangyan 611830, China

  • 2.

    Sichuan Higher Education Engineering Research Center for Disaster Prevention and Mitigation of Village Construction, Dujiangyan 611830, China

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  • Received Date: August 06, 2020
  • Available Online: December 07, 2022
    Graphical Abstract
    • Abstract
  • In view of the deficiencies of low-efficiency and poor mechanical response of columnar joint existing in the physical model tests on irregular columnar jointed rock mass, a one-shot moulding method for preparing artificial irregular columnar jointed rock mass specimens is proposed based on the Voronoi diagram random simulation and the 3D printing technology. Then brittle green wax is used as the 3D printing material to print the irregular columnar joint network, and the irregular columnar jointed rock mass specimens are prepared. Then uniaxial compression tests are performed on the above specimens, and the uniaxial compressive strength, deformation modulus and failure morphology of the specimens are obtained. On this basis, the mechanical anisotropy characteristics and typical failure modes under uniaxial compression are analyzed. Furthermore, the above experimental results are compared with the existing model test ones. It is shown that the proposed one-shot moulding method can improve the efficiency of sample preparation and simulate the mechanical response of real columnar joints very well.
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    • References (17)
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