Finite Element Analysis of the Surface Settlement Induced by the Shield Tunnel Construction

Ling, Gao; Xiang, Yang; Li, Qin

doi:10.4028/www.scientific.net/amm.501-504.111

Cited by 1 publication

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the ground settlement caused by shield or pipe jacking engineering, the theoretical analysis method [3,4], empirical formula method [5][6][7][8], and numerical simulation method [9,10] are usually used to study it. In terms of shield ground settlement, Fang et al [11] proved the influence of tunnel depth and ground loss rate on longitudinal ground settlement caused by shield construction through a series of model tests.…”

Section: Introductionmentioning

confidence: 99%

Differential Analysis and Prediction Optimization of Ground Surface Settlement Induced by Quasi‐Rectangular Shield and Pipe Jacking Tunnelling

et al. 2022

Advances in Civil Engineering

View full text Add to dashboard Cite

The shield method and pipe jacking method will impact the ground surface and surrounding settlement during tunnel construction. Due to their different tunnelling principles and their cross-section characteristics, the impact on the stratum is often different. To study the differences between the two construction methods on ground surface settlement, numerical simulations, Peck empirical formulas, and field measurement data were used for analysis and comparison in this work. Two correction coefficients α and λ are introduced for correction on the basis of the DOT Peck formula, and the analysis of sensitivity factors for the ground settlement for the two construction methods is carried out. The numerical simulation results show that the ground settlement induced by pipe jacking construction is smaller than that of the shield, and this simulation result is confirmed by the field measurement result. When λ is selected from 0.85 to 0.91 and α from 1 to 1.1 for the shield project, 1.2 to 1.4, and 1.4 to 1.6 for the pipe jacking project, the modified formula can better predict the ground surface settlement. According to the sensitivity factor analysis, grouting pressure and elastic modulus of grout material exert a more significant influence on pipe jacking construction. The retreat of the pipe section caused by the tunnelling pressure difference will lead to 0 mm ∼ 1.93 mm fluctuation on the ground surface.

show abstract

Section: Introductionmentioning

confidence: 99%

Differential Analysis and Prediction Optimization of Ground Surface Settlement Induced by Quasi‐Rectangular Shield and Pipe Jacking Tunnelling

et al. 2022

Advances in Civil Engineering

View full text Add to dashboard Cite

show abstract

Finite Element Analysis of the Surface Settlement Induced by the Shield Tunnel Construction

Cited by 1 publication

References 3 publications

Differential Analysis and Prediction Optimization of Ground Surface Settlement Induced by Quasi‐Rectangular Shield and Pipe Jacking Tunnelling

Differential Analysis and Prediction Optimization of Ground Surface Settlement Induced by Quasi‐Rectangular Shield and Pipe Jacking Tunnelling

Contact Info

Product

Resources

About