Amplification effect of near-field ground motion around deep tunnels based on finite fracturing seismic source model

Wang, Qiankuan; Qiu, Shili; Yao, Cheng; Li, Shaojun; Li, Ping; Huang, Yong; Zhang, Shirui

doi:10.1016/j.jrmge.2021.12.024

Cited by 3 publications

(1 citation statement)

References 43 publications

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“…As one of the essential input parameters, and the effective frequency band of the recordings after filter process is 0.1–24 Hz (Qiang et al., 2021). The source model of the Yangbi earthquake was established using the scaling law based on global and local source parameters and truncated normal distribution density function (Dang, Cui, Liu, & Ji, 2023; Wang, 2004), as shown in Figure 2. The results show that the fault size is 10 × 9 km 2 and the subfaults are sized at 1 × 1 km 2 (Dang, Cui, Liu, & Ji, 2023).…”

Section: Methodology and Datamentioning

confidence: 99%

Simulation of Ground Motion From Finite‐Fault Modeling Incorporating the Influence of Duration

Dang,

Cui,

et al. 2023

Earth and Space Science

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On 21 May 2021 (local time), an Mw 6.1 earthquake struck the Yangbi County, Yunnan Province, China. The finite fault stochastic simulation approach is usually used to simulate ground motions in high‐frequency band (f > 1 Hz). Model parameters needed for earthquake ground motion simulation mainly include source, path, and site. In the high‐frequency ground motion simulation program widely used in earthquake engineering, the reciprocal of corner frequency is typically used to define the source rise time; however, the complete step‐wise derivation process is unavailable. In deriving the static corner frequency f0, source rise time is typically estimated to be the time required for the rupture to reach 50% of the final location, and the source rise time then can be obtained as 0.27/f0, which is consistent with the hypothesis of corner frequency and rupture velocity, and the correlation and integrity between parameters are established. This study also focuses on the influence of different source rise times and path durations on the simulation results, such as Fourier acceleration spectrum, pseudo‐spectral acceleration, and peak ground acceleration. The results show that the source rise time recommended in this simulation can improve the accuracy of near‐fault ground motion simulations. This study provides suggestions for a reasonable selection of path duration in different engineering applications.

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Section: Methodology and Datamentioning

confidence: 99%

Simulation of Ground Motion From Finite‐Fault Modeling Incorporating the Influence of Duration

Dang,

Cui,

et al. 2023

Earth and Space Science

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Numerical study of the vibration suppression effect of a new vibration suppression method based on a shielding wall

Wang

Qiu

et al. 2022

Construction and Building Materials

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Hazardous High-Energy Seismic Event Discrimination Method Based on Region Division and Identification of Main Impact Factors: A Case Study

Liu,

Cao,

Wang

et al. 2024

Applied Sciences

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An investigation of risk factors has been identified as a crucial aspect of the routine management of rockburst. However, the identification methods for principal impact factors and the examination of the relationship between seismic energy and other source parameters have not been extensively explored to conduct dynamic risk management. This study aims to quantify impact risk factors and discriminate hazardous high-energy seismic events. The analytic hierarchy process (AHP) and entropy weight method (EWM) are utilized to ascertain the primary control factors based on geotechnical data and nearly two months of seismic data from a longwall panel. Furthermore, the distribution law and correlation relationship among seismic source parameters are systematically analyzed. Results show that the effect of coal depth, coal seam thickness, coal dip, and mining speed covers the entire mining process, while the fault is only prominent in localized areas. There are varying degrees of log-positive correlations between seismic energy and other source parameters, and this positive correlation is more pronounced for hazardous high-energy seismic events. Utilizing the linear logarithmic relationship between seismic energy and other source parameters, along with the impact weights of dynamic risks, the comprehensive energy index for evaluating high-energy seismic events is proposed. The comprehensive energy index identification method proves to be more accurate by comparing with the high-energy seismic events based on energy criteria. The limitations and improvements of this method are also synthesized to obtaining a wide range of applications.

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Amplification effect of near-field ground motion around deep tunnels based on finite fracturing seismic source model

Cited by 3 publications

References 43 publications

Simulation of Ground Motion From Finite‐Fault Modeling Incorporating the Influence of Duration

Simulation of Ground Motion From Finite‐Fault Modeling Incorporating the Influence of Duration

Numerical study of the vibration suppression effect of a new vibration suppression method based on a shielding wall

Hazardous High-Energy Seismic Event Discrimination Method Based on Region Division and Identification of Main Impact Factors: A Case Study

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