Volume 37 Issue 5
Oct.  2023
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Article Navigation >  GEOTECHNICAL ENGINEERING TECHNIQUE  > 2023  >  37(5): 614-617
Song Lei, Zhang Rongkuan, Tang Yong. Study on the Effect of Drying and Wetting Cycles on the Crack Evolution and Strength of Expansive Mudstone[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2023, 37(5): 614-617. doi: 10.3969/j.issn.1007-2993.2023.05.016
Citation: Song Lei, Zhang Rongkuan, Tang Yong. Study on the Effect of Drying and Wetting Cycles on the Crack Evolution and Strength of Expansive Mudstone[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2023, 37(5): 614-617. doi: 10.3969/j.issn.1007-2993.2023.05.016
shu

Study on the Effect of Drying and Wetting Cycles on the Crack Evolution and Strength of Expansive Mudstone

doi: 10.3969/j.issn.1007-2993.2023.05.016
  • 1.

    China Design Group Co., Ltd., Nanjing 210029, Jiangsu, China

  • 2.

    Jiangsu Yuheng Engineering Quality Inspection Co., Ltd., Yancheng 224014, Jiangsu, China

  • Received Date: 2022-07-26
  • Accepted Date: 2023-05-06
  • Rev Recd Date: 2023-04-09
  • Publish Date: 2023-10-16
    Abstract
  • Based on the indoor drying and wetting cycles test of the undisturbed expansive mudstone in a water conservancy project in Hefei area, the crack images of expansive mudstone under different times of drying and wetting cycles were analyzed, and the direct shear test was carried out. The results show that the cohesion and internal friction angle of expansive mudstone decrease with the increasing number of drying and wetting cycles time, and the fracture length and total fracture area increase with the increasing number of drying and wetting cycles under the condition of limited water swelling deformation. The research results have guiding significance for engineering construction in this kind of expansive mudstone area.

     

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