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学者姓名：陈苏
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Abstract ：
Understanding the effect of underground structures on the seismic responses of saturated coral sand sites is crucial for improving seismic design and preventing liquefaction disasters in island reef engineering. Despite advancements in this field, the specific effects of underground structures on the seismic behavior of coral sand sites remain underexplored. This study addresses this issue by conducting dynamic centrifuge shaking table tests on saturated coral sand sites, both with and without an underground structure. The seismic responses between the free field (FF) and structure field (SF) were compared in terms of pore pressure, acceleration, response spectra, and shear stress-strain behavior. Test results reveal that the presence of the underground structure led to a deeper liquefaction zone beneath it. The excess pore pressure in the soil layer above the structure dissipated rapidly after peaking and completely dissipated by the end of the seismic motions. Additionally, the soil near the bottom of the structure exhibited higher dilatancy. The structure amplified the acceleration of the soil above and near its bottom while reducing the acceleration of the soil adjacent to its sidewall. In the period range of 0.9-3.0 s, the presence of the structure weakened the attenuation of response spectra values for the soil adjacent to the sidewall and above the structure. Furthermore, the structure limited the deformation of the soil adjacent to its sidewall and increased the soil shear modulus.
Keyword ：
Coral sand Coral sand Underground structure Underground structure Seismic response Seismic response Soil-structure interaction Soil-structure interaction Liquefaction Liquefaction Centrifuge shaking table tests Centrifuge shaking table tests
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| GB/T 7714 | Zhang, Zhongxiang , Chen, Su , Wang, Yongzhi et al. Experimental study on the effect of an underground structure on the seismic responses of saturated coral sand site [J]. | APPLIED OCEAN RESEARCH , 2025 , 154 . |
| MLA | Zhang, Zhongxiang et al. "Experimental study on the effect of an underground structure on the seismic responses of saturated coral sand site" . | APPLIED OCEAN RESEARCH 154 (2025) . |
| APA | Zhang, Zhongxiang , Chen, Su , Wang, Yongzhi , Li, Xiaojun . Experimental study on the effect of an underground structure on the seismic responses of saturated coral sand site . | APPLIED OCEAN RESEARCH , 2025 , 154 . |
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Abstract ：
The seismic performance of liquefied natural gas (LNG) tanks is significantly influenced by Soil-FoundationStructure Interaction (SFSI). It is essential to investigate the effect of the SFSI on isolated LNG tank, particularly on a deep soil site. This study aims to examine the impact of the SFSI on the seismic performance of an isolated LNG tank located on the deep soil site. The impact of foundation type, pile length, and the frequency content on the primary seismic responses of the LNG tank were thoroughly examined in this study. These seismic responses include the acceleration of the outer tank, the height of the sloshing wave, and the shear force and bending moment of the inner tank. Additionally, the seismic force along the pile foundation, such as shear force, lateral displacement, and bending moment, was also analyzed. The results indicate that for isolated LNG tanks, it would be dangerous without considering the SFSI, while for the pile foundation, it may be beneficial when considering the SFSI. The pile foundation types did not considerably affect the seismic response of the isolated LNG tank in the deep soil site. Additionally, the seismic response appears to be highly sensitive to the frequency characteristics of the seismic excitation, especially the low-frequency content.
Keyword ：
Foundation type Foundation type Deep soil site Deep soil site SFSI SFSI Frequency domain Frequency domain Isolated LNG tank Isolated LNG tank
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| GB/T 7714 | Li, Zaixian , Chen, Su , Zhang, Rui et al. Seismic performance of LNG tanks in deep soil site considering soil-foundation-structure interaction [J]. | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING , 2024 , 177 . |
| MLA | Li, Zaixian et al. "Seismic performance of LNG tanks in deep soil site considering soil-foundation-structure interaction" . | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 177 (2024) . |
| APA | Li, Zaixian , Chen, Su , Zhang, Rui , Liu, Xiang , Li, Xiaojun . Seismic performance of LNG tanks in deep soil site considering soil-foundation-structure interaction . | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING , 2024 , 177 . |
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Abstract ：
Aftershocks frequently induce further damage to slopes that have already been compromised by mainshocks. Most of the current research concentrates on the case-based studies of structural response to the mainshock-aftershock sequences (MAS), however, the influence of the MAS parameter characteristics has not been adequately considered. In this study, the peak characteristic, spectrum characteristic, cumulative characteristic and polarity effect of the MAS were considered, the correlation between 21 MAS parameters and slope response were analyzed, and the response characteristics of soil slope under the MAS action were comprehensively and systematically revealed. The results show that: (1) Aftershocks can induce significant incremental damage to slopes, with the extent of this damage being contingent upon the severity of damage caused by the mainshock; (2) Among the MAS parameters, the Cumulative Absolute Velocity (CAV(ma)) and Peak Ground Velocity (PGV(ma)) are optimal for assessing the response of soil slopes under MAS conditions. Furthermore, the incremental damage caused by aftershocks can be predicted using the displacement increment ratio (delta(D)); (3) The polarity of the MAS has an impact on the displacement of the slope, following the pattern: MAS along-slope direction > mainshock along-slope direction and aftershock reverse-slope direction > aftershock along-slope direction and mainshock reverse-slope direction > MAS reverse-slope direction; (4) The MAS polarity also affects the correlation between the MAS parameters and the slope displacement response, especially for the aftershock displacement. The research results aim to provide a foundation for the selection of evaluation factors and the analysis of soil slopes stability under the MAS action.
Keyword ：
Ground motion polarity Ground motion polarity Ground motion parameters Ground motion parameters Seismic response of soil slope Seismic response of soil slope Mainshock-aftershock sequences Mainshock-aftershock sequences Correlation analysis Correlation analysis
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| GB/T 7714 | Zhang, Chengda , Zhang, Jiangwei , Chen, Su et al. Response characteristics of soil slope under mainshock-aftershock sequences-type ground motions: Incremental damage effect, polarity effect, and correlation [J]. | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING , 2024 , 187 . |
| MLA | Zhang, Chengda et al. "Response characteristics of soil slope under mainshock-aftershock sequences-type ground motions: Incremental damage effect, polarity effect, and correlation" . | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 187 (2024) . |
| APA | Zhang, Chengda , Zhang, Jiangwei , Chen, Su , Li, Xiaojun . Response characteristics of soil slope under mainshock-aftershock sequences-type ground motions: Incremental damage effect, polarity effect, and correlation . | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING , 2024 , 187 . |
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Abstract ：
This investigation examines the structure-soil-structure interaction (SSSI) problem between a tunnel and nearby aboveground building, considering the impact of the stiffness of tunnel and building's foundation. A twodimensional (2D) model is utilized, which includes a flexible circular tunnel and a three-story building anchored by a flexible semi-circular foundation embedded in a homogeneous half-space. The response of the system to incident plane SH-wave excitation is solved analytically using the wave function expansion method. The analysis focuses on how the system response is affected by the stiffness of the tunnel and the building's foundation. Tunnel stiffness plays a leading role in tunnel response analysis. The model with a rigid tunnel and rigid foundation can offer a reasonable system response overall, but it fails to accurately represent tunnel deformation and stress distribution. Depending on the stiffness of the building's foundation, the maximum value of the inter-story displacement of the first floor can be overestimated by around 70 %, with even greater overestimations for higher floors. The results help understand observed seismic behaviors and provide insight into the effects of foundation and tunnel stiffness on the tunnel-building interaction system.
Keyword ：
Soil -structure interaction (SSI) Soil -structure interaction (SSI) Structure -soil -structure interaction (SSSI) Structure -soil -structure interaction (SSSI) Flexible foundation Flexible foundation Tunnel flexibility Tunnel flexibility Wave function expansion method Wave function expansion method Underground structure Underground structure
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| GB/T 7714 | Jin, Liguo , Wang, Zhe , Li, Xiaojun et al. Analytical solution to 2D dynamic soil-tunnel-building interaction under seismic SH-wave excitation considering the influence of the stiffness of tunnel and building's foundation [J]. | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING , 2024 , 184 . |
| MLA | Jin, Liguo et al. "Analytical solution to 2D dynamic soil-tunnel-building interaction under seismic SH-wave excitation considering the influence of the stiffness of tunnel and building's foundation" . | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 184 (2024) . |
| APA | Jin, Liguo , Wang, Zhe , Li, Xiaojun , Chen, Su , Wang, Juke . Analytical solution to 2D dynamic soil-tunnel-building interaction under seismic SH-wave excitation considering the influence of the stiffness of tunnel and building's foundation . | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING , 2024 , 184 . |
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Abstract ：
This study investigates the impact of aftershocks on hazard assessment and disaster prevention by examining three main characteristics of strong ground motions: amplitude, spectrum, and duration. A total of 6414 accelerograms were compiled from 26 selected mainshock-aftershock events in the Yalong River Basin, China, Japan, and Turkey. The aim is to investigate the correlation between mainshocks and aftershocks using Copula theory and seven representative intensity measures: peak ground acceleration (PGA), cumulative absolute velocity (CAV), peak ground velocity (PGV), Arias intensity, significant duration, mean frequency and predominant frequency of Fourier amplitude spectrum. The findings reveal a moderate to strong non-linear correlation among the seven intensity measures of mainshocks and aftershocks. This non-linear correlation can be effectively captured using Gumbel, Gaussian, and t-Copula functions. Under the conditions of the optimal Copula joint distribution model among the given intensity measures and the mainshock intensity measures, the Copula conditional prediction model for aftershocks accurately reflects the values of aftershock intensity measures. This approach demonstrates the effectiveness of Copula theory in studying the correlation between mainshock and aftershock intensity measures. It offers a novel method for determining aftershock intensity measures and investigating correlations among multivariate random variables.
Keyword ：
Non-linear correlation Non-linear correlation Copula theory Copula theory Conditional prediction model Conditional prediction model Joint distribution Joint distribution Mainshock-aftershock Mainshock-aftershock
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| GB/T 7714 | Wang, Ziyan , Li, Xiaojun , Chen, Su et al. Parametric study of correlation of mainshock-aftershock ground motions based on Copula theory [J]. | JOURNAL OF SEISMOLOGY , 2024 , 28 (5) : 1267-1291 . |
| MLA | Wang, Ziyan et al. "Parametric study of correlation of mainshock-aftershock ground motions based on Copula theory" . | JOURNAL OF SEISMOLOGY 28 . 5 (2024) : 1267-1291 . |
| APA | Wang, Ziyan , Li, Xiaojun , Chen, Su , Fu, Lei , Zhang, Bin , Liu, Xianwei et al. Parametric study of correlation of mainshock-aftershock ground motions based on Copula theory . | JOURNAL OF SEISMOLOGY , 2024 , 28 (5) , 1267-1291 . |
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Abstract ：
The model test method is crucial for studying the seismic performance of underground structures. Presently, model tests for the seismic response of underground structures are primarily performed with 1-g and N-g centrifuge shaking table. The 1-g shaking table model test is limited by the stress similarity in the soil-structure interaction system and cannot reproduce the seismic damage process and extent of the underground structure. The small table size of the N-g centrifuge model test makes it difficult to reflect the spatial effects of the seismic response of large underground structures. Seeking a large-scale model test method that can directly simulate the seismic damage process is essential for investigating the seismic performance of underground structures. Herein, based on the seismic response characteristics of underground structures, a quasi-static pushover test device applicable to underground structures was designed, and the corresponding tests and numerical model calculations were executed using the Daikai subway station as a prototype. Based on the macroscopic phenomena of structural damage development of the subway station in the test, the damage mechanism of the station structure was analyzed and compared with the numerical model. The strain amplitudes, displacements, and digital scatter strain color maps were analyzed to verify the reliability of the cyclic pushover loading test simulating the seismic performance level and damage process of the underground structure. Simultaneously, the rationality of the proposed quantification system for classifying the seismic performance level of single-story underground structures was verified.
Keyword ：
Cyclic pushover testing Cyclic pushover testing Underground structures Underground structures Quasi-static testing Quasi-static testing Numerical modeling Numerical modeling Seismic excitation Seismic excitation
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| GB/T 7714 | Zhuang, Haiyang , Xu, Zigang , Yang, Jing et al. Quasi-static model test and numerical simulation of a single-story double-span underground subway station [J]. | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING , 2023 , 173 . |
| MLA | Zhuang, Haiyang et al. "Quasi-static model test and numerical simulation of a single-story double-span underground subway station" . | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 173 (2023) . |
| APA | Zhuang, Haiyang , Xu, Zigang , Yang, Jing , Chen, Su , Zhang, Ji , Chen, Guoxing . Quasi-static model test and numerical simulation of a single-story double-span underground subway station . | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING , 2023 , 173 . |
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Abstract ：
Accelerograms of 58 subduction zone earthquakes recorded by 25 K-NET coastal stations located in Sagami Bay and its adjacent regions were used to analyze the spectral properties of the source, propagation path, and site effects by using the generalized inversion technique. The inverted Delta sigma values vary from 1.7 MPa to 17.4 MPa, with an average value of 4.89 MPa and a standard deviation of log(10) 0.23. Although the depths of the selected earthquakes are confined to 30 km, which is similar to those of the crustal earthquakes, this study obtains an average Delta sigma which coincides with the plate-boundary earthquakes rather than the crustal earthquakes. It implies that the stress condition of the plate-boundary region varies from the inland crust. The obtained Q(f) = 105.9f(0.)(77) is similar to the previous studies. The kappa(0) of the selected stations varies from 0.0479 s to 0.0904 s, indicating high-frequency attenuation for the coastal area. The inverted site response shows the systematic tendency for different site classes. The amplification levels of class A sites fluctuate around one between 1 Hz and 10 Hz. Class B sites indicate peak amplification at the resonant frequency distributed between 3 Hz and 10 Hz. Most of the Classes D and E sites have peak amplification below about 4 Hz. Using the inversion results as the input parameters of the stochastic finite-fault method, an M(W)5.4 subduction zone earthquake was simulated. The resulting response spectra corresponded to the observations and confirmed that the inverted parameters are reasonable.
Keyword ：
stress drop stress drop generalized inversion technique generalized inversion technique Subduction zone earthquake Subduction zone earthquake stochastic finite-fault simulation method stochastic finite-fault simulation method local site effect local site effect
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| GB/T 7714 | Chen, Su , Fu, Lei , Dai, Zhijun et al. Spectral Analysis of Subduction Zone Earthquakes for Coastal Stations and Applications to Stochastic Finite-Fault Simulation Method [J]. | JOURNAL OF EARTHQUAKE AND TSUNAMI , 2022 , 16 (02) . |
| MLA | Chen, Su et al. "Spectral Analysis of Subduction Zone Earthquakes for Coastal Stations and Applications to Stochastic Finite-Fault Simulation Method" . | JOURNAL OF EARTHQUAKE AND TSUNAMI 16 . 02 (2022) . |
| APA | Chen, Su , Fu, Lei , Dai, Zhijun , Chen, Shiyang , Li, Xiaojun . Spectral Analysis of Subduction Zone Earthquakes for Coastal Stations and Applications to Stochastic Finite-Fault Simulation Method . | JOURNAL OF EARTHQUAKE AND TSUNAMI , 2022 , 16 (02) . |
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Abstract ：
Currently, research on the underground structures seismic fragility is still in its infancy state. In this study, we carried out numerical simulation on soil-underground structure system (SUSI) by taking the Daikai metro station damaged in the Kobe earthquake as analysis object. Considering input ground motion characteristics, based on incremental dynamic analysis (IDA method), a statistical numerical modeling method was established to classify underground structure seismic damage status and its seismic performance level. The analysis results showed that the input ground motions had a significant effect on the IDA curves. The rationality and randomness of the selected ground motions were important influencing factors to ensure the underground structures seismic fragility curves. In relation to the damage that occurred to the Daikai station in 1995, the peak ground acceleration (PGA) and peak relative lateral displacement (PRLD) of the site were suitable for estimating the seismic performance of the shallow buried structure constructed. Finally, the seismic fragility curves were compared with the existing research results, and a seismic damage assessment was carried out, which verified the effectiveness of the statistical numerical modeling method developed in this study.
Keyword ：
Seismic performance Seismic performance Seismic fragility curves Seismic fragility curves Underground structure Underground structure Statistical numerical modeling Statistical numerical modeling Intensity measure Intensity measure
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| GB/T 7714 | Zhuang, Haiyang , Yang, Jing , Chen, Su et al. Statistical numerical method for determining seismic performance and fragility of shallow-buried underground structure [J]. | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY , 2021 , 116 . |
| MLA | Zhuang, Haiyang et al. "Statistical numerical method for determining seismic performance and fragility of shallow-buried underground structure" . | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 116 (2021) . |
| APA | Zhuang, Haiyang , Yang, Jing , Chen, Su , Dong, Zhengfang , Chen, Guoxing . Statistical numerical method for determining seismic performance and fragility of shallow-buried underground structure . | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY , 2021 , 116 . |
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Abstract ：
The interaction between urban river-canyon topography and the river-side building is investigated by using a whole analytic model of a semicircle river-canyon and a shear wall supported by a semicircle rigid foundation embedded in a homogenous half-space. The closed-form analytical solution for system response is presented based on the wave function expansion method. The analysis focuses on the effects of the canyon-building interaction on system response. The strength of the interaction between the river-canyon topography and the building changes periodically as the distance between the canyon and the structure increases, leading to the interaction having beneficial or harmful effects on the building's seismic response. The foundation peak response of the building can be amplified by about 10%, and the peak of the building relative response can be amplified by about 40%. The distribution of canyon-structure spacing with strong or weak interaction is closely related to the dynamic characteristics of the building and the incident angle of the wave. When designing buildings along the river, the building and canyon should be analyzed as a whole model to determine whether the location of the building is in a position with strong interaction with the river-canyon. The model in this paper may be useful for obtaining insight into the effects of canyon-structure interaction and interpreting the observed response in buildings and seismic response estimation in general.
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| GB/T 7714 | Jin, Liguo , Liu, Xujin , Zhou, Zhenghua et al. An Analytical Solution for Seismic Interaction between Urban River-Canyon Topography and Nearby Buildings [J]. | SHOCK AND VIBRATION , 2021 , 2021 . |
| MLA | Jin, Liguo et al. "An Analytical Solution for Seismic Interaction between Urban River-Canyon Topography and Nearby Buildings" . | SHOCK AND VIBRATION 2021 (2021) . |
| APA | Jin, Liguo , Liu, Xujin , Zhou, Zhenghua , Chen, Su . An Analytical Solution for Seismic Interaction between Urban River-Canyon Topography and Nearby Buildings . | SHOCK AND VIBRATION , 2021 , 2021 . |
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Abstract ：
In this study, shaking table tests were performed to investigate the dynamic interaction of a silty-clay soil with an irregular-section subway station. During the tests, a shape acceleration array (SAA) was used to measure the lateral deformation of the model soil, and a non-contact dynamic displacement testing method was applied to visualize and digitalize the seismic damage process of the station structure. Typical test results, including the dynamic earth pressure, seismic settlement, deformation, and acceleration of different levels of the structure, were interpreted. The results indicated that the movement of the subway station was more controlled by the surrounding silty-clay soil in terms of phase and amplitude. SAA can effectively measure the soil deformation, and the relationship between the relative lateral displacement and soil depth can be well fitted in a cosine function, especially when subjected to strong earthquakes. Seismic settlement is significantly linked to Arias intensity, and the subway station experienced significant uneven settlement, resulting in soil-structure separation in the vertical direction. The multi-story irregular-section subway station deforms in a shear mode. The maximum inter-story drift ratio was approximately 1/171. The components in the lower layers of the shallow-buried subway station structure, particularly in the central columns, underwent cumulative damage. Hence, more robust forms of structural members and the ductility of central columns should be carefully considered in the seismic design of subway station structures.
Keyword ：
Seismic damage Seismic damage Shaking table test Shaking table test Irregular-section subway station Irregular-section subway station Silty clay Silty clay Deformation characteristics Deformation characteristics
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| GB/T 7714 | Tang, Baizan , Li, Xiaojun , Chen, Su et al. Investigations of seismic response to an irregular-section subway station structure located in a soft clay site [J]. | ENGINEERING STRUCTURES , 2020 , 217 . |
| MLA | Tang, Baizan et al. "Investigations of seismic response to an irregular-section subway station structure located in a soft clay site" . | ENGINEERING STRUCTURES 217 (2020) . |
| APA | Tang, Baizan , Li, Xiaojun , Chen, Su , Zhuang, Haiyang , Chen, Hua-Peng . Investigations of seismic response to an irregular-section subway station structure located in a soft clay site . | ENGINEERING STRUCTURES , 2020 , 217 . |
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