Journal of Earthquake and Tsunami最新文献_第9页

Reliability Analysis of Soil Liquefaction Considering Spatial Variability of Soil Property 考虑土壤性质空间变异性的土壤液化可靠性分析

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-08-18 DOI: 10.1142/s1793431122500026

Yubing Wang, Shuang Shu, Wu Yongxin

引用次数: 3

Study on Earthquake-Induced Sloshing Waves in Moraine-Dammed Lakes 冰碛湖地震诱发晃动波研究

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-08-18 DOI: 10.1142/s1793431122500014

Cong Zhang, L. Yao

{"title":"Study on Earthquake-Induced Sloshing Waves in Moraine-Dammed Lakes","authors":"Cong Zhang, L. Yao","doi":"10.1142/s1793431122500014","DOIUrl":"https://doi.org/10.1142/s1793431122500014","url":null,"abstract":"Large surface water waves can be triggered in moraine-dammed lakes during earthquakes and may lead to the overtopping failure of moraine dams. In the earthquake-prone Himalayas, there are thousands of moraine-dammed lakes; their outburst may lead to catastrophic disasters (e.g. floods and debris flow), posing severe threats to humans and infrastructures downstream. This paper experimentally studied earthquake-induced water waves (EWWs) in moraine-dammed lakes and examined the effects of several factors (e.g. water depth, earthquake parameters, and uneven lake basin). The experimental results suggest that the EWWs positively correlate to the earthquake wave, and the maximum height of the EWWs increases by 10%–15% when the effect of the uneven lake basin is considered. Based on the experiment data, we derived a calculation equation to estimate the maximum amplitude of EWWs considering the basin effect, and proposed a fast risk assessment method for moraine lakes due to overtopping EWWs. Finally, based on the method, we assessed the failure risk of the moraine lakes located in the Gyirong river basin where the China–Nepal corridor crosses. The study broadens understandings of the risk source of moraine-dammed lakes.","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"6 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88400318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Study on Wave Attenuation of Tsunami-Like Wave by Emergent Rigid Vegetation 涌现刚性植被对类海啸波衰减的数值研究

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-06-09 DOI: 10.1142/S1793431121500287

K. Qu, G. Lan, S. Kraatz, W. Sun, B. Deng, C. Jiang

引用次数: 1

New Analytical Solution to Predict the Vertical Impedance of a Large-Diameter Pipe Pile in Soil Considering Wave Propagation in Visco-Elastic Continuum 考虑粘弹性连续介质中波传播的土中大直径管桩垂直阻抗新解析解

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-06-07 DOI: 10.1142/S1793431121400029

Cui Chunyi, Liang Zhimeng, Xu Chengshun, Xin Yu, Wang Benlong, Meng Kun

{"title":"New Analytical Solution to Predict the Vertical Impedance of a Large-Diameter Pipe Pile in Soil Considering Wave Propagation in Visco-Elastic Continuum","authors":"Cui Chunyi, Liang Zhimeng, Xu Chengshun, Xin Yu, Wang Benlong, Meng Kun","doi":"10.1142/S1793431121400029","DOIUrl":"https://doi.org/10.1142/S1793431121400029","url":null,"abstract":"According to the theories of wave propagation in visco-elastic continuum and Rayleigh-Love rod, a simplified model in axisymmetric conditions for the longitudinal vibration of large-diameter pipe pile (LDPP) in radially heterogeneous surrounding soil with viscous damping is presented. The relevant analytical solution for dynamic impedance at pile head is derived by using complex stiffness transfer method, which is also validated via independent comparisons with previous solutions. Besides, parametric analyses are carried out to reveal both the radial heterogeneity of surrounding soil and the lateral inertia effect of pile shaft on the dynamic impedance of LDPP. The obtained analytical solutions are suitable for the longitudinal vibration issues of floating LDPP in visco-elastic surrounding soil with radial heterogeneity, which can be conveniently degenerated to describe the longitudinal vibration of a floating solid pile in soil with radial heterogeneity as well as a floating LDPP or solid pile in radially homogenous soil.","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"190 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74741081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Stochastic Dynamic Response Analysis and Probability Evaluation of Subway Station Considering Subjected to Stochastic Earthquake Excitation 考虑随机地震激励的地铁车站随机动力响应分析及概率评价

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-06-07 DOI: 10.1142/S1793431121400017

Qunying Fan, Rui Pang, Bin Xu, Min Jing

{"title":"Stochastic Dynamic Response Analysis and Probability Evaluation of Subway Station Considering Subjected to Stochastic Earthquake Excitation","authors":"Qunying Fan, Rui Pang, Bin Xu, Min Jing","doi":"10.1142/S1793431121400017","DOIUrl":"https://doi.org/10.1142/S1793431121400017","url":null,"abstract":"As a relatively new means of transportation, the subway has become an important tool for the sustainable development of many cities. Being buried deep in soil under the weight of vital infrastructure, subway stations can be vulnerable to seismic excitations. Considering the high randomness of ground motions, it is important to research the failure probability and seismic performance of the subway station based on stochastic dynamic analysis. In this paper, a probability density evolution method (PDEM) coupled with a spectral representation random function is used to analyze the stochastic dynamic response and seismic probability of a subway station. First, according to the improved power spectral density model and the seismic design code of urban rail transit structures in China (GB 50909-2014), a set of nonstationary ground motions consistent with the code spectrum are obtained. Then, a great deal of deterministic dynamic calculations for Daikai subway station considering soil–structure interaction based on elastic–plastic methods are performed. In addition, the nonlinear stochastic response analysis and the dynamic probability analysis are obtained for the subway station by solving the PDEM equation. Finally, the probability density function (PDF) and cumulative distribution function (CDF) of the subway station under stochastic earthquake excitations are obtained based on three performance indices, including drift angle in the middle column, relative vertical displacement between floor and roof, and damage area ratio (DAR). The results show that the stochastic dynamic analysis and the probability density evolution method can analyze seismic response and evaluate seismic performance of subway stations effectively. The proposed method will serve as an effective tool for the seismic design of underground structures.","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"9 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90033660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Dynamic Interaction of Two Independent SDOF Oscillators Supported by a Flexible Foundation Embedded in a Half-Space: Closed-Form Analytical Solution for Incident Plane SH-Waves 嵌入半空间的柔性基础支撑的两个独立SDOF振荡器的动力相互作用:入射平面sh波的封闭解析解

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-05-01 DOI: 10.1142/S1793431121500263

Liguo Jin, Liting Du, Haiyan Wang

{"title":"Dynamic Interaction of Two Independent SDOF Oscillators Supported by a Flexible Foundation Embedded in a Half-Space: Closed-Form Analytical Solution for Incident Plane SH-Waves","authors":"Liguo Jin, Liting Du, Haiyan Wang","doi":"10.1142/S1793431121500263","DOIUrl":"https://doi.org/10.1142/S1793431121500263","url":null,"abstract":"This paper presents a closed-form analytical solution for the dynamic response of two independent SDOF oscillators standing on one flexible foundation embedded in an elastic half-space and excited by plane SH waves. The solution is obtained by the wave function expansion method and is verified by comparison with the results of the special cases of a rigid foundation and the published research result of a flexible foundation. The model is utilized to investigate how the foundation stiffness influences the system response. The results show that there will be a significant interaction between the two independent structures on one flexible foundation and the intensity of the interaction is mainly dependent on foundation stiffness and structural stiffness. For a system with more flexible foundation, strong interaction will exist between the two structures; larger structural stiffness will also lead to a strong interaction between the two structures. When the structural mass and the structural stiffness are all larger, the flexible foundation cannot be treated as a rigid foundation even if the foundation stiffness is many times larger than that of soil. This model may be useful to get insight into the effects of foundation flexibility on the interaction of two independent structures standing on one flexible foundation.","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"15 1","pages":"1-24"},"PeriodicalIF":1.5,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75302574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of Structural Damage following the October 30, 2020 Aegean Sea Earthquake and Tsunami 2020年10月30日爱琴海地震和海啸后的结构破坏评估

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-04-27 DOI: 10.1142/S1793431121500299

A. Altunışık, Barbaros Atmaca, M. Kartal, M. Gunaydin, S. Demir, Alper Ulusan

引用次数: 4

Numerical Simulation of Run-Up and Land Inundation on the Vegetated Sloping Beach 植被坡地滩涂坡度与土地淹没的数值模拟

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-04-12 DOI: 10.1142/S1793431121500275

Maryam Ziaadini-Dashtekhaki, M. Ghaeini-Hessaroeyeh, S. Hamzehei-Javaran

{"title":"Numerical Simulation of Run-Up and Land Inundation on the Vegetated Sloping Beach","authors":"Maryam Ziaadini-Dashtekhaki, M. Ghaeini-Hessaroeyeh, S. Hamzehei-Javaran","doi":"10.1142/S1793431121500275","DOIUrl":"https://doi.org/10.1142/S1793431121500275","url":null,"abstract":"Vegetated areas on the beach can reduce tsunami heights and reduce the loss of life and property damage in coasts. Thick trunks and tangled branches attenuate tsunami waves. In this study, a numerical model is developed based on the finite volume method for simulating tsunami flooding. This model is used to simulate the solitary wave run-up propagation on sloping beaches with and without vegetation. The shallow water equations are used, also the effect of drag force due to vegetation is applied in the momentum equation. The HLLC approximate Riemann solver is selected, and the model is developed to second-order accuracy using the Weighted Average Flux method. After verification of the present model, the model is applied for simulation of solitary wave on a sloping beach. The present model results are compared to the available experimental data and another numerical model. The present numerical results reveal that as forest belt’s width increases, the height, velocity, and force of the tsunami waves decrease. Therefore, to further reduce the tsunami energy, a wider belt is recommended. Also, the effect of different tsunami wave heights on the rate of wave reduction has been investigated. In some areas, the presence of high tsunami waves causes to submerge the vegetation. Consequently, the drag force and the damping rate of the wave decrease. Therefore, the height of the forest zone and the height of the tsunami waves are important parameters.","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"124 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79495638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Experimental Investigation on Seismic Compression of Sand Subjected to Multidirectional Cyclic Loads 多方向循环荷载作用下砂土地震压缩试验研究

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-03-25 DOI: 10.1142/S1793431121500238

Qingsheng Chen, G. Gao, Chun-Xiao Nie, Jun Yang, J. Bi, X. Gu

{"title":"Experimental Investigation on Seismic Compression of Sand Subjected to Multidirectional Cyclic Loads","authors":"Qingsheng Chen, G. Gao, Chun-Xiao Nie, Jun Yang, J. Bi, X. Gu","doi":"10.1142/S1793431121500238","DOIUrl":"https://doi.org/10.1142/S1793431121500238","url":null,"abstract":"The ground is simultaneously subjected to both horizontal and vertical motions during earthquakes; however, the majority of existing studies on seismic compression are still limited to the horizontal earthquake motions only. In this work, the objective is therefore to experimentally investigate the effects of multidirectional nature of load application on seismic compression of sand. Multiple series of hollow cylindrical torsional shear tests were conducted on dry sand specimens with different relative densities, where different scenarios of stress conditions induced by earthquakes were simulated by applying various combinations of vertical and horizontal cyclic loads. Test results revealed that coupling with horizontal motions, the vertical component of seismic loads would significantly contribute to the development of both shear and vertical strains in the sand specimen. The increment in vertical strain under coupled motions could be up to over 70% compared to its counterpart for the sand specimen under horizontal cyclic stress alone. Nevertheless, it is also interestingly found that the contribution of superimposed vertical motion alone to the growth of vertical strain is limited. Besides, the effect of relative density on the change of vertical strain is nonlinear, and the decreasing rate of vertical strain diminishes with the increase of relative density.","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"1 1","pages":"2150023"},"PeriodicalIF":1.5,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80331415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanism Study of Vehicle–Bridge Dynamic Interaction under Near-Fault Ground Motions 近断层地震动作用下车桥动力相互作用机理研究

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-03-25 DOI: 10.1142/s1793431121500196

Cunyu Cui, Yan Xu, Z. Zeng

引用次数: 2