Effects of complex interaction of Rayleigh waves with tunnel on the free surface ground motion and the strain across the tunnel-lining

Narayan, J.; Kumar, Dhirendra; Sahar, D.

doi:10.1007/s11069-015-1853-0

Cited by 20 publications

(4 citation statements)

References 28 publications

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“…A parametric study indicated that the dynamic response of the lining and around the soil had been significantly influenced by tunnel embedment depth, the thickness of the liner, and soil shear modulus. Jiang et al [63,64] evaluated an underground utility tunnel response under the P, SV, and R-wave propagations by employing numerical 2D FEM. The results indicated that the free-field response is amplified because of the tunnel existence.…”

Section: Introductionmentioning

confidence: 99%

A numerical study on effect of underground cavities on seismic ground response due to Rayleigh wave propagation

2023

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Recent studies found that some structural damage can be attributed to the effect of surface waves. A shallow underground structure may be heavily influenced by surface waves, which makes to lose energy over distance more slowly than body waves. This study deals with evaluating the effect of Rayleigh waves (R-waves) interaction with underground cavities on the seismic ground response and amplification pattern using the Finite Element Method (FEM). First, the FEM model was verified to ensure its accuracy. Then, the influences of the effective parameters, such as cavity burial depth, distance from the cavity axis, and dimensionless incident frequency were investigated. Parametric studies revealed that the amplitude of ground motion is greater in the presence of a cavity with respect to that in the free-field condition. It was indicated that shallow cavities cause more amplification than cases with a larger depth ratio. By moving away from the wave source, the response of receiver points has a declining trend. Due to the complex interaction of R-waves with a cavity, the right side of the cavity has less amplitude than the left side. Finally, by increasing the dimensionless incident frequency, the distribution of the surface displacements and wave diffraction patterns gradually becomes more complicated while the peak displacement components decrease. Consequently, in light of the importance of the R-wave interaction with subsurface spaces, the findings of this study can help improve seismic design procedures and seismic microzonation guidelines.

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Section: Introductionmentioning

confidence: 99%

A numerical study on effect of underground cavities on seismic ground response due to Rayleigh wave propagation

2023

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“…A review of technical literature shows that Karakus et al [32], Yamamoto et al [88], Mirhabibi and Soroush [41], Zhang et al [90], Das et al [14], and Tsinidis [79] were among the researchers who studied the twin tunnel problems by FEM. In the use of FDM can name the studies of Chakeri et al [9], Do et al [15], Jamshasb et al [26], Narayan et al [44], and Ziaei and Ahangari [91] as well. Some other researchers like [2][3][4]82], Zeng et al [92], Song et al [72][73][74] and Song and Rodriguez-Dono [75] presented specific numerical approaches such as the convergence-confinement method (CCM) for tunnels' excavation in rock masses.…”

Section: Introductionmentioning

confidence: 99%

Seismic ground response by twin lined tunnels with different cross sections

Panji

Mojtabazadeh-Hasanlouei

2021

SN Appl. Sci.

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In this paper, the geometrical effects of shallow twin lined tunnels with different cross sections are investigated to obtain the anti-plane seismic ground motion under vertical/horizontal incident plane SH waves. A model of long two-dimensional lined tunnels is established and embedded in a homogeneous linear elastic half-plane by an applied numerical time-domain boundary element approach. In addition to a brief introduction to the formulation of the method, by considering five tunnel sections including circular, elliptical, horseshoe, square and rectangular, the surface response is sensitized to observe the normalized displacement amplitude/amplification ratio. In this regard, the angle of the incident wave and the frequency of the response are also included in changing the response pattern. To illustrate the results in both time and frequency domains, they are presented as blanket charts, snapshots, and three-/two-dimensional diagrams. The results showed that the seismic response of the surface is extremely affected by the geometric parameters of underground tunnels, which can create different conditions on the ground surface with shifting the direction of the wavefront. Article Highlights Geometrical effect of twin horizontally overlapping lined tunnels. Applying a time-domain half-plane boundary element method. Illustrating the response in time and frequency domains. The effect of depth and distance ratios on the seismic ground motion. Propagating vertical and horizontal incident SH-wave type. Graphic Abstract

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“…Sica et al [2] used finite element method to assess the effects of space and depth of the cavities on the ground motion amplification. Narayan et al [3] developed a P-SV wave finite difference algorithm with lined and unlined tunnels. Kim SH [4] studied the 3-D underground structures with inelastic material behavior under dynamic loading.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Seismic Response Analysis of the Surrounding Rock-Tunnel System in the Mountain Areas Under SV Wave

Xia¹,

Han²,

Li³

et al. 2021

Advances in Transdisciplinary Engineering

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The seismic responses and failure mechanisms of the tunnels embedded in the rock are quite different from those of the aboveground structures due to the dynamic interactions between tunnel and surrounding rock. In the previous studies, the tunnel models were under some extent of simplification without considering much of critical issues such as the three-dimensional (3D) characteristics, nonlinear mechanical properties or initial in-situ stress in the model, which are bound to bring the unpredictable errors in the evaluation of seismic response of tunnel-rock system. In this paper, some 3D nonlinear finite element models are established to evaluate the seismic response of surrounding rock-tunnel system in the mountain areas, considering the initial stress state of surrounding rock-tunnel system induced by gravity and excavation, General Mohr Coulomb nonlinear constitutive. Based on the proposed model, the optimal value of the longitudinal length of the model is firstly discussed to determine the value range of the model size. After that, a series of numerical parametric analyses are carried out to investigate the deformation of the surrounding rock. One important finding is that there exists a most unfavorable stress condition which makes the tunnel induce maximum seismic responses. Finally, the typical control variable method is employed to compare the results of the models established in this paper with those of the model considering or not some of significance factors, the comparison results further prove the necessity of establishing the 3D nonlinear model.

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Effects of complex interaction of Rayleigh waves with tunnel on the free surface ground motion and the strain across the tunnel-lining

Cited by 20 publications

References 28 publications

A numerical study on effect of underground cavities on seismic ground response due to Rayleigh wave propagation

A numerical study on effect of underground cavities on seismic ground response due to Rayleigh wave propagation

Seismic ground response by twin lined tunnels with different cross sections

Nonlinear Seismic Response Analysis of the Surrounding Rock-Tunnel System in the Mountain Areas Under SV Wave

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