Construction analysis of Guiyang Metro passing across Guiyang Railway Station in karst zone

Tao, Yonghu; Rao, Junying

doi:10.1016/j.tust.2022.104541

Cited by 12 publications

(1 citation statement)

References 10 publications

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“…The environmental impact caused by underground construction has become a hot issue in the field of underground engineering in recent years. However, the cases of underground construction on adjacent existing railways are generally rare, and are only reported by a few researchers (Yang, 2019;Wu et al, 2022) Nowadays, some researchers not only control the impact of the construction itself, but also from strengthening existing buildings to reduce deformation and settlement (Liu, 2014;Zhang et al, 2018;Tao and Rao, 2022). This "two-pronged" approach has been paid attention to and affirmed in many aspects.…”

Section: Introductionmentioning

confidence: 99%

Tunneling construction technology of shafts and cross-passages under strictly controlling deformation of the existing railway

Liu

Xu²,

Li³

et al. 2023

Front. Earth Sci.

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Underground construction will have more or less adverse effects on adjacent existing buildings with more and more existing buildings above ground. However, this situation has only been reported by a small number of researchers. In view of this, this article takes the existing airport line shaft and horizontal passage project in the western suburb of Beijing Metro Line 12 as the background to study the impact of the construction of subway station and shaft passage on the adjacent existing railway. Based on the above project reality, under the action of pavement load, the effects of different parameters (the distance between the surface measuring point and the middle line of the transverse passage and the substep of construction loading sup step) on the surface settlement and track deformation of the shaft and cross-passage through the existing railway are studied by numerical analysis method. The calculation results show that the construction method of shaft and cross passage is reasonable. The comprehensive reinforcement measures of subgrade, rail and hole are effective, effectively controlling the deformation of subgrade and rail within the standard value (surface settlement ≤60 mm, rail deformation ≤6 mm). In addition, the numerical simulation data can better represent the actual situation as a whole.

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