Grouting Effects of Fully Mechanized Tunneling Method for Metro Cross-Passage Construction in Soil Strata

Ma, Yongzheng; Zhu, Yuechun; Pan, Hong-ji; Niu, Fu-sheng; Mei, Qing-jun

doi:10.1007/s13369-022-07035-6

Cited by 2 publications

(1 citation statement)

References 25 publications

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“…The construction of the shaft and cross-passage of Sijiqing Station will certainly affect the normal use of the airport railway in the western suburbs. Therefore, to meet the requirements of the existing railway roadbed and rail deformation control values (Table 1) (China Railway Cooperation, 2014;China Railway Cooperation, 2019), the technical measures of line reinforcement and stratum reinforcement (Wang et al, 2019;Li et al, 2022;Nakajima et al, 2022), as well as reasonable construction methods of shafts and cross-passageways should be adopted (Song et al, 2018;Lu et al, 2019;Wu et al, 2019;Zhang et al, 2021;Ma et al, 2022).…”

Section: Engineering Backgroundmentioning

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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