Seismic Analysis of Immersed Tube Tunnel for Hong Kong-Zhu Hai-Macao Bridge Project

Hu, X.S.; Zhang, Xiao Xu; Qiu, Yu Liang; Dong, Wei Hua; Kou, Bao Wen

doi:10.4028/www.scientific.net/amr.250-253.1723

Cited by 3 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Internal force calculation, cross-section design, stability checking will be accomplished according to the design requirements by different industry standards. Threedimensional modeling method of the arbitrary shape excavation and calculation and analysis mode will be worked out to get the characteristic of supporting structure internal force, deformation and ground settlement [5,6]. This research can provide the basis for both design and research work in foundation pit engineering.…”

Section: Introductionmentioning

confidence: 99%

Calculation and Analysis Techniques of Foundation Pit Engineering Based on FLAC3D

Qiu

Wang

et al. 2012

AMR

Self Cite

View full text Add to dashboard Cite

Two-dimensional and three-dimensional calculation methods of deep excavation, and section design programs were developed to meet the needs of foundation design and calculation with the Three-dimensional finite difference software FLAC3D. Force calculation, section design and stability analysis, and force diagram generation of support structure can be done in accordance with the requirements of different specifications by the programs. A meshing method is developed for arbitrary planar domain, and the three-dimensional stratigraphic model is established. Considering the interaction between soil and structure, the force and deformation of supporting structure and ground settlement can be accurately calculated. The results can provide a useful assistance for design and can also be used as the basis for scientific analysis

show abstract

Section: Introductionmentioning

confidence: 99%

Calculation and Analysis Techniques of Foundation Pit Engineering Based on FLAC3D

Qiu

Wang

et al. 2012

AMR

Self Cite

View full text Add to dashboard Cite

show abstract

Influence of Double-Lining on the Seismic Response of Undersea Tunnels Under Plane-P 1 -Wave Incidence

Zhu,

Li,

Zhao

et al. 2023

Preprint

View full text Add to dashboard Cite

Seismic Response of Immersed Tunnel Subject to Oblique Incidence of SV Wave

Cong

Zhang

et al. 2022

Applied Sciences

View full text Add to dashboard Cite

In view of the near-field seismic action, considering that oblique incidence of seismic waves is more realistic than vertical incidence, the seismic response of the Hong Kong–Zhuhai–Macao immersed tunnel subjected to an obliquely incident SV wave is investigated. Using the finite element method and time-domain wave method, the seismic input is transformed into an equivalent node load with a viscous–spring artificial boundary, and a three-dimensional simulation technology for SV waves of oblique incidence is presented. A half-space numerical example is given to demonstrate the accuracy of the proposed simulation technology. Taking the stress field formed by the self-weight stress and hydrostatic pressure as the initial state of the dynamic response analysis, the static–dynamic coupling numerical simulation of the seismic response of a soil-immersed tunnel system is realized. The results show that the amplification in the vertical and longitudinal response of the tunnel, due to the oblique incidence, reaches maximum when the incident angle is close to the critical angle. Furthermore, the horizontal response and incident angle show the inverse relation and tend to be stable. In addition, the oblique incidence also causes asymmetric shearing in symmetric parts of the tunnel. The root of the shear key easily produces tensile cracks, while the end angle of the shear key is prone to stress concentration and local damage. Thus, the impact of oblique incidence should be considered in the seismic design, and attention should be paid to the optimization of the end angle of the shear key and the configuration of anti-crack reinforcement at the root of shear key to meet the seismic requirements.

show abstract

Seismic Analysis of Immersed Tube Tunnel for Hong Kong-Zhu Hai-Macao Bridge Project

Cited by 3 publications

References 0 publications

Calculation and Analysis Techniques of Foundation Pit Engineering Based on FLAC3D

Calculation and Analysis Techniques of Foundation Pit Engineering Based on FLAC3D

Influence of Double-Lining on the Seismic Response of Undersea Tunnels Under Plane-P 1 -Wave Incidence

Seismic Response of Immersed Tunnel Subject to Oblique Incidence of SV Wave

Contact Info

Product

Resources

About