2024
DOI: 10.3389/fphy.2024.1345581
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Research on intrusion and large arch bulge in lining structure for highway’s mudstone tunnel

Shuai Li,
Jing Fu,
Gengren Liu
et al.

Abstract: During the construction of a highway in northwest China, large deformation of mudstone caused severe deformation of and damage to side walls, initial support, and secondary lining to various extents. To reveal the causes of mudstone’s large deformation in the tunnels of this highway, a comprehensive study was conducted by using engineering geological survey, on-site monitoring and measurement, indoor rock mechanics test, numerical simulation, and macroscopic analysis. For the problem of large deformation of th… Show more

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“…Mudstone is a type of soft rock that exhibits distinctive engineering properties. It has unique characteristics, including rheology, swelling, disintegration, and softening [12][13][14][15]. The strength of mudstone is typically weak, rendering the surrounding rock highly susceptible to significant displacement during tunnel excavation, which has a significant impact on construction safety.…”
Section: Engineering Backgroundmentioning
confidence: 99%
“…Mudstone is a type of soft rock that exhibits distinctive engineering properties. It has unique characteristics, including rheology, swelling, disintegration, and softening [12][13][14][15]. The strength of mudstone is typically weak, rendering the surrounding rock highly susceptible to significant displacement during tunnel excavation, which has a significant impact on construction safety.…”
Section: Engineering Backgroundmentioning
confidence: 99%