Study on the construction method for in-situ expansion of existing large cross-section tunnels

Abstract This paper takes the in-situ expansion project of the Dachangshan tunnel as a case study to compare and optimize the construction method for the in-situ expansion of existing large cross-section tunnels. The deformation of the tunnel, the stress distribution of the surrounding rock, and the...

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Bibliographic Details
Main Authors: Han Dayong, Zhong Xingwu, Liu Lei, Cui Hao, Li Dong, Yan Zihai, Chen Xiaojie, Yan Jiajia
Format: Article
Language:English
Published: Springer 2025-05-01
Series:Discover Applied Sciences
Subjects:
Online Access:https://doi.org/10.1007/s42452-025-07132-9
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