Zhaofei CHU

Dr. Zhaofei CHU

orcid

Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 December 2021 in Journal of Rock Mechanics and Geotechnical Engineering
Verified
Journal Article
Open access
ZWZhijun Wu
Zhijun Wu
RWRulei Wei
Rulei Wei
ZCZhaofei CHU
Zhaofei CHU
QLQuansheng Liu
Quansheng Liu

1 December 2019 in Tunnelling and Underground Space Technology
Verified
Journal Article
Closed access
ZCZhaofei CHU
Zhaofei CHU
ZWZhijun Wu
Zhijun Wu
BLBaoguo Liu
Baoguo Liu
QLQuansheng Liu
Quansheng Liu

21 February 2022 in International Journal of Rock Mechanics and Mining Sciences
Verified
Journal Article
Closed access
Lei WengLei Weng
Lei Weng
ZWZhijun Wu
Zhijun Wu
SZSilang Zhang
Silang Zhang
QLQuansheng Liu
Quansheng Liu
ZCZhaofei CHU
Zhaofei CHU

1 April 2021 in Journal of Engineering Mechanics
Verified
Journal Article
Closed access
PDF file
ZCZhaofei CHU
Zhaofei CHU
ZWZhijun Wu
Zhijun Wu
QLQuansheng Liu
Quansheng Liu
BLBaoguo Liu
Baoguo Liu
JSJinglai Sun
Jinglai Sun
Tunneling stoppage often occurs during tunnel construction, especially in weak and rheological ground. The discontinuous excavation caused by the stoppage usually has a certain impact on the tunnel convergence and supporting pressure. This study develops a closed-form analytical solution for a deep-buried circular tunnel excavated in viscoelastic rock, in which the progress of longitudinal discontinuous excavation (the stoppage that occurs during tunneling) and the sequential installation of double elastic liners are considered. In the derivation, the change in the advance rate of the tunnel face before and after stopping is also considered. Corresponding to the whole construction process, the solution is solved step by step in five stages, and a generalized derivation procedure for any viscoelastic model is provided depending on the integral equation theory. Particularly for the Burgers model, explicit expressions for the time-dependent rock displacement and stress as well as the pressure on the two liners are presented, which can be reduced to the previous viscoelastic solutions with a constant advance rate or without the face effect. For validation purpose, comparisons are made between the proposed solution and previous existing solutions as well as the numerical results obtained by the finite-difference simulations. Additionally, to further verify the applicability of the presented solution in tunnel applications, the time-dependent tunnel convergence and liner stress of the four typical cross sections in the Saint Martin La Porte access adit are predicted, which are in good agreement with the corresponding field monitoring data. Compared with previous solutions, the proposed solution is more comprehensive and suitable for more complex tunnels with various excavation methods, rheological rocks, and supporting forms.

8 January 2023 in Rock Mechanics and Rock Engineering
Verified
Journal Article
Closed access
PDF file
KWKui Wu
Kui Wu
ZSZhushan Shao
Zhushan Shao
YJYalong Jiang
Yalong Jiang
NZNannan Zhao
Nannan Zhao
SQSu Qin
Su Qin
ZCZhaofei CHU
Zhaofei CHU

27 September 2022 in Rock Mechanics and Rock Engineering
Verified
Journal Article
Closed access
PDF file
LWLei Weng
Lei Weng
ZWZhijun Wu
Zhijun Wu
ZCZhaofei CHU
Zhaofei CHU
HLHaifeng Lu
Haifeng Lu
XXXiangyu Xu
Xiangyu Xu
QLQuansheng Liu
Quansheng Liu