Analysis of existing railway deformation caused by double shield tunnel construction in soil–rock composite stratum

Jiao, Ning; Sun, Shuhui; Liu, Jinyu; Guo, Qinying; Ding, Jianwen; Wan, Xin

doi:10.1016/j.egyr.2022.11.160

Cited by 10 publications

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Wu et al [10] proposed a new method for safety risk assessment of adjacent buildings during shield tunnel construction, first using matter elements to theoretically calculate the correlation degree, then determining the safety state based on the evidence theory, and finally using the Monte Carlo method to obtain sensitivity factors, providing a theoretical basis for evaluating the safety risks of adjacent buildings during tunnel construction and proposing targeted improvement measures. Based on field monitoring data, Jiao et al [11] analyzed the deformation of a double-line shield tunnel passing under a railway in a soil-rock composite stratum, and they revealed the influence of the hard layer rate, tunnel depth, and railway subgrade reinforcement on the deformation of the railway track through numerical simulation. The subsidence mainly occurred in the middle and late stages of the shield tunnel crossing the railway.…”

Section: Introductionmentioning

confidence: 99%

A General Framework for the Impact of Shield Tunnel Construction on Existing Tunnel in Soil

Wang

Song

et al. 2023

Sustainability

View full text Add to dashboard Cite

During the excavation process of shield tunneling, it is inevitable that the surrounding soil mass is disturbed, which will affect the adjacent structures. This paper proposes a general framework for the impact of shield tunneling construction on existing tunnels. First, the impact partition of shield tunneling construction regarding adjacent tunnels and buildings is established by a three-dimensional numerical analysis method. Then, the displacement of adjacent tunnels and buildings is predicted using fuzzy gray theory. Finally, based on the results of a numerical simulation and experiment, the risk classification standard of adjacent buildings is established. This framework has certain reference significance and value for the deformation prediction and safety evaluation of adjacent buildings.

show abstract

Section: Introductionmentioning

confidence: 99%