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Model Studies on the Effects of Filling Thickness and Joint Roughness on the Shear Characteristics of Fully Encapsulated Bolts and Energy-Absorbing Bolts

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Rock Mechanics and Rock Engineering Aims and scope Submit manuscript

Highlights

  • The fully encapsulated bolt is prone to stress concentration, which leads to the bolt breaking suddenly.

  • Energy-absorbing bolt adapted to the large deformation of surrounding rock through slight yield but long-term support.

  • When filling thickness to asperity height ratio (t/a) is small, the joint shear failure behavior is controlled by the asperities and the filling.

  • When t/a is large, the joint shear failure mainly exists within the filling.

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Data availability

The data are available from the corresponding author on reasonable request.

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Acknowledgements

This study has been partially funded by National Natural Science Foundation of China (No. 52179098, 41907251) and State Scholarship Fund of China (No. 202306650001). These supports are gratefully acknowledged.

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Authors and Affiliations

  1. College of Civil Engineering, Fuzhou University, Fuzhou, 350100, People’s Republic of China

    Hanfang Zheng, Xuezhen Wu, Yujing Jiang & Jing Hu

  2. School of Engineering, Nagasaki University, 1-14 Bunkyo-Machi, Nagasaki, 8528521, Japan

    Hanfang Zheng & Yujing Jiang

  3. College of Civil Engineering, Fujian University of Technology, Fuzhou, 350100, People’s Republic of China

    Gang Wang

  4. Power China Huadong Engineering Corporation Limited, Hangzhou, 310014, People’s Republic of China

    Bin Zheng

  5. Fujian Xinhuaxia Construction Engineering Group Co., Ltd, Longyan, 361000, People’s Republic of China

    Jihai Zhu

Authors
  1. Hanfang Zheng
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  2. Xuezhen Wu
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  3. Yujing Jiang
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  4. Gang Wang
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Correspondence to Xuezhen Wu.

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Zheng, H., Wu, X., Jiang, Y. et al. Model Studies on the Effects of Filling Thickness and Joint Roughness on the Shear Characteristics of Fully Encapsulated Bolts and Energy-Absorbing Bolts. Rock Mech Rock Eng 57, 765–777 (2024). https://doi.org/10.1007/s00603-023-03558-y

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  • DOI: https://doi.org/10.1007/s00603-023-03558-y

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