Assessment of damage in mountain tunnels due to the Taiwan Chi-Chi Earthquake

Wang, W.L.; Wang, T.T.; Su, Jincang; Lin, Ching-Weei; Seng, Chia Ray; Huang, Tsan‐Hwei

doi:10.1016/s0886-7798(01)00047-5

Cited by 592 publications

(232 citation statements)

References 3 publications

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“…The hysteresis and the internal friction characteristics of rubber are usually expressed as the loss factor. The greater loss factor is, the more significant rubber damping and heat is and the more obvious damping effect is [3]- [5].…”

Section: The Working Principle Of Composite Springmentioning

confidence: 99%

The Design of the Shock Mitigation System of Large Cone Crusher

Gao¹,

Li²,

Shan³

et al. 2015

IJMMM

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Abstract-This paper's study is according to the large cone crusher of Ansteel Mining. It elaborates the characteristics and design requirements of composite spring, a part of the shock mitigation system of large cone crusher. The paper details the Shock absorption principle of composite spring of large cone crusher. We will calculate the main parameters of the composite spring shock absorption pad to ensure that it's rigidity meet the requirements of working conditions. So, the study can provide a theoretical basis for the further research and development of the crusher.Index Terms-Crusher, composite spring, shock absorption pad, design.

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Section: The Working Principle Of Composite Springmentioning

confidence: 99%

The Design of the Shock Mitigation System of Large Cone Crusher

Gao¹,

Li²,

Shan³

et al. 2015

IJMMM

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show abstract

“…On the other hand, it has been observed that the underground tunnel may suffer from serious damage in great earthquakes, such as Taiwan Chi-Chi (Wang et al 2001) earthquakes. Hence, in the last decades, the seismic response of underground tunnel has become an attractive research topic in earthquake engineering and has been intensively investigated by numerous researchers analytically or numerically.…”

Section: Introductionmentioning

confidence: 99%

Dynamic interaction of twin vertically overlapping lined tunnels in an elastic half space subjected to incident plane waves

2016

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The scattering of plane harmonic P and SV waves by a pair of vertically overlapping lined tunnels buried in an elastic half space is solved using a semi-analytic indirect boundary integration equation method. Then the effect of the distance between the two tunnels, the stiffness and density of the lining material, and the incident frequency on the seismic response of the tunnels is investigated. Numerical results demonstrate that the dynamic interaction between the twin tunnels cannot be ignored and the lower tunnel has a significant shielding effect on the upper tunnel for high-frequency incident waves, resulting in great decrease of the dynamic hoop stress in the upper tunnel; for the low-frequency incident waves, in contrast, the lower tunnel can lead to amplification effect on the upper tunnel. It also reveals that the frequency-spectrum characteristics of dynamic stress of the lower tunnel are significantly different from those of the upper tunnel. In addition, for incident P waves in low-frequency region, the soft lining tunnels have significant amplification effect on the surface displacement amplitude, which is slightly larger than that of the corresponding single tunnel.

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“…However, recent earthquakes as in the Kobe, Japan earthquake (EQE Summary, 1995;Sinozuka, 1995), Chi-Chi, Taiwan earthquake (Chen et al, 2002;Wang et al, 2001;Uenishi et al, 1999) and Kocaeli, Turkey earthquake (Hashash et al, 2001) caused extensive failure in tunnels. Underground structure damages were also observed in different earthquakes, such as 1976 Tangshan earthquake in China (Wang, 1985) and the Loma Prieta earthquake in USA (Schmidt and Hashash, 1998).…”

Section: Introductionmentioning

confidence: 99%

Deconvolution effect of near-fault earthquake ground motions on stochastic dynamic response of tunnel-soil deposit interaction systems

Hacıefendioğlu

2012

Nat. Hazards Earth Syst. Sci.

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Abstract. The deconvolution effect of the near-fault earthquake ground motions on the stochastic dynamic response of tunnel-soil deposit interaction systems are investigated by using the finite element method. Two different earthquake input mechanisms are used to consider the deconvolution effects in the analyses: the standard rigid-base input and the deconvolved-base-rock input model. The Bolu tunnel in Turkey is chosen as a numerical example. As near-fault ground motions, 1999 Kocaeli earthquake ground motion is selected. The interface finite elements are used between tunnel and soil deposit. The mean of maximum values of quasistatic, dynamic and total responses obtained from the two input models are compared with each other.

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Assessment of damage in mountain tunnels due to the Taiwan Chi-Chi Earthquake

Cited by 592 publications

References 3 publications

The Design of the Shock Mitigation System of Large Cone Crusher

The Design of the Shock Mitigation System of Large Cone Crusher

Dynamic interaction of twin vertically overlapping lined tunnels in an elastic half space subjected to incident plane waves

Deconvolution effect of near-fault earthquake ground motions on stochastic dynamic response of tunnel-soil deposit interaction systems

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