Analytical Analysis of Non-Circular Hydraulic Lined Tunnels Under Smooth Contact With Transversely Isotropic Rock Mass

WANG Shaojie; ZENG Xiangtai; Lü Aizhong

doi:10.21656/1000-0887.410182

Volume 42 Issue 4

Apr. 2021

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WANG Shaojie, ZENG Xiangtai, Lü Aizhong. Analytical Analysis of Non-Circular Hydraulic Lined Tunnels Under Smooth Contact With Transversely Isotropic Rock Mass[J]. Applied Mathematics and Mechanics, 2021, 42(4): 342-353. doi: 10.21656/1000-0887.410182

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Analytical Analysis of Non-Circular Hydraulic Lined Tunnels Under Smooth Contact With Transversely Isotropic Rock Mass

doi: 10.21656/1000-0887.410182

¹China Nuclear Power Engineering Co., Ltd., Beijing 100840, P.R.China
²School of Civil Engineering and Architecture, Nanchang University, Nanchang 330031, P.R.China
³Institute of Hydroelectric and Geotechnical Engineering, North China Electric Power University, Beijing 102206, P.R.China

Funds: The National Natural Science Foundation of China（51974124）

Received Date: 2020-06-18
Rev Recd Date: 2020-07-08
Publish Date: 2021-04-01

Abstract

Abstract

An analytical method for non-circular hydraulic lined tunnels in transversely isotropic rock mass was proposed, with the lining under the smooth contact condition with surrounding rock mass. Based on the complex variable theory, continuous conditions for stresses and displacements at the contact boundary and water pressure boundary condition at the lining free boundary were established. In view of the lining support delay effect and with the power series method, the analytical solution was acquired. Aimed at a horseshoe-shaped lined tunnel constructed in transversely isotropic rock mass with inclined structural face, the correctness of this method was validated by analytical check and numerical comparison. Distributions of stress and displacement at the contact boundary and lining free boundary under the effects of anisotropic property and water pressures were discussed.
- transversely isotropic rock mass,
- smooth contact condition,
- non-circular hydraulic lined tunnel,
- complex variable method,
- inner water pressure

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References(18)

References

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