Experimental Study on the Interaction Between the Reservoir and Tunnel During the Construction and Operation Period

Fu, Helin; An, Pengtao; Wu, Yimin; Li, Jie; Chen, Long; Liu, Yin

doi:10.1007/s13369-022-06813-6

Cited by 3 publications

(2 citation statements)

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“…Therefore, laboratory model tests were widely adopted to conduct investigations about tunneling in a congested environment. In order to reproduce the actual geotechnical condition and to reflect the interaction between the tunnel and the existing underground structures, the models must satisfy the main requirements (e.g., the geometry and physical-mechanical characteristics) [32,36]. Based on the similarity theory and the well-documented model test cases, the similarity ratios of the main parameters in this study can be written as follows:…”

Section: Similarity Of the Model Testmentioning

confidence: 99%

“…The results revealed that existing buildings with large stiffness could greatly affect the distribution of the soil displacement and the tunnel deformation. By conducting model tests on close-proximity tunnelling, Fu et al (2022) [32] also verified that the presence of the existing underground infrastructures could restrain the deformation of the tunnel to some extent and that there was some difference between the measured ground settlement pattern and the conventional soil settlement trough.…”

Section: Introductionmentioning

confidence: 96%

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Experimental Study on the Soil–Structure Responses Induced by Tunnelling in Limited Space

Guo

Liu

2023

Applied Sciences

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As the economy develops rapidly, newly built tunnels in congested urban areas are becoming more and more common. Based on similarity theory, this study conducted a laboratory model test to investigate the soil–structure responses induced by the construction of a new tunnel in limited space which was formed by the existing underground infrastructures. The soil movement, convergence of the tunnel and distribution of the soil stress were explored. The test results revealed that the limited space could have a significant shielding effect on the soil movement. The maximum ground subsidence and the range of ground settlement induced by the construction of the tunnel in limited space were 60% and 40%, respectively, smaller than those induced by the construction of a tunnel at a “greenfield” site. The deformation of the tunnel was also restrained distinctly. Moreover, a soil settlement trough appeared below the bottom slab of the underground structure. The findings can shed some light on the surrounding responses induced by tunnelling in limited space in soft clay and can offer the valuable guidance for the similar projects.

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Section: Similarity Of the Model Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%