Abstract—Because the landslide has an important influence
on the internal force and deformation of the existing tunnel, and
the research on the stress and deformation of the tunnel in the
landslide area tends to field engineering monitoring, the
corresponding theoretical analysis is relatively small, and there
are some defects. First, Pasternak two parameter foundation
model is introduced to establish the elastic foundation beam
model of tunnel landslide interaction, which solves the soil
discontinuity of Winkler foundation in the previous theory, and
the transfer matrix method is used to derive the transfer matrix
formula. Then, Matrix Laboratory (MATLAB) is used to
compile the corresponding calculation program to analyze the
distribution characteristics of internal force and deformation of
the tunnel. Finally, the influence of relevant parameters such as
the elastic coefficient of foundation inside and outside the
landslide deformation area, the magnitude and distribution of
landslide thrust, and the foundation shear stiffness inside and
outside the landslide area are analyzed.
Index Terms—Tunnel landslide interaction, Pasternak elastic
foundation beam, transfer matrix, theoretical analysis
The authors are with Chongqing University, Chongqing 400045, China.
*Correspondence: 202016021015@stu.cqu.edu.cn (J.G.)
[PDF]
Cite: Jiqiang Guo, Ming Xu, Xiaoting Zhang, Shang Xiao, and Riyan Lan, "Analysis of Stress and Deformation Law of Tunnel Crossing Sliding Body Based on Pasternak Two Parameter Foundation Assumption," International Journal of Engineering and Technology vol. 15, no. 2, pp. 45-52, 2023.
