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197篇 您的检索式:作者名="Xiuli Liu"
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1Seismic damage of highway bridges during the 2008 Wenchuan earthquake显示文摘Many highway bridges were severely damaged or completely collapsed during the 2008 Wenchuan earthquake.A fi eld investigation was carried out in the strongly affected areas and over 320 bridges were examined.Damage to some representative highway bridges is briefly described and a preliminary analysis of the probable causes of the damage is presented in this paper.The most common damage included shear-flexural failure of the pier columns,expansion joint failure,shear key failure,and girder sliding in the transversal or longitudinal directions due to weak connections between girder and bearings.Lessons learned from this earthquake are described and recommendations related to the design of curved and skewed bridges,design of bearings and devices to prevent girder collapse,and ductility of bridge piers are presented.Suggestions for future seismic design and retrofi tting techniques for bridges in moderate to severe earthquake areas are also proposed.Han Qiang Du Xiuli Liu Jingbo Li Zhongxian Li Liyun Zhao Jianfeng 2009Earthquake Engineering and Engineering Vibration2009,8,2:60
2Potential and challenges of tannins as an alternative to in-feed antibiotics for farm animal production显示文摘Naturally occurring plant compounds including tannins, saponins and essential oils are extensively assessed as natural alternatives to in-feed antibiotics.Tannins are a group of polyphenolic compounds that are widely present in plant region and possess various biological activities including antimicrobial,anti-parasitic, anti-viral, antioxidant, anti-inflammatory, immunomodulation, etc.Therefore, tannins are the major research subject in developing natural alternative to in-feed antibiotics.Strong protein affinity is the well-recognized property of plant tannins, which has successfully been applied to ruminant nutrition to decrease protein degradation in the rumen, and thereby improve protein utilization and animal production efficiency.Incorporations of tannin-containing forage in ruminant diets to control animal pasture bloat, intestinal parasite and pathogenic bacteria load are another 3 important applications of tannins in ruminant animals.Tannins have traditionally been regarded as 'anti-nutritional factor' for monogastric animals and poultry, but recent researches have revealed some of them, when applied in appropriate manner, improved intestinal microbial ecosystem, enhanced gut health and hence increased productive performance.The applicability of plant tannins as an alternative to in-feed antibiotics depends on many factors that contribute to the great variability in their observed efficacies.Qianqian Huang Xiuli Liu Guoqi Zhao Tianming Hu Yuxi Wang 2018Animal Nutrition2018,,2:54
3Trends of foodborne diseases in China: lessons from laboratory- based surveillance since 2011显示文摘Foodborne 疾病是世界范围的最重要的公共健康问题之一。中国在食物链的所有方面面对各种各样、崭新的挑战。从从 2013 ~ 2016 的基于实验室的 foodborne 疾病监视系统的数据,以及不同区域和年龄,能在与多样的特征检测的病原体的模式与差别一起被发现。Vibrio parahaemolyticus 是在中国的传染腹泻的领先的原因,特别在在沿海的区域的成年人之中。沙门氏菌是为实质的社会经济的负担负责的严肃、广泛地分布式的病原体。Shigella 主要在 5 年下面在孩子之中与开发更少的区域在西北中国和内陆省(河南省) 被识别。从从 2011 ~ 2016 报导系统的 foodborne 疾病爆发的数据证明有毒的动物和为大多数死亡负责的植物因素在在西南区域的遥远的区域是有毒的蘑菇(54.7%) 。引起了报导的大多数案例(42.3%) 的生物危险被归因于 V。parahaemolyticus, foodborne 爆发的领先的原因。在这评论,我们在中国总结最近的监视途径到 foodborne 疾病并且在发达国家把结果与那些作比较。Jikai Liu Li Bai Weiwei Li Haihong Han Ping Fu Xiaochen Ma Zhenwang Bi Xiaorong Yang Xiuli Zhang Shiqi Zhen Xiaoling Deng Xiumei Liu Yunchang Guo 2018Frontiers of Medicine2018,12,1:55
4Proteomics Associated with Virulence Differentiation of Curvularia lunata in Maize in China显示文摘蛋白质的一个维的电气泳动(1-DE ) ,蛋白质的 two-dimensionalelectrophoresis (2-DE ) 并且 cDNA 顺序克隆被用来学习 Curvularia lunata 的毒力区别[Cochliobolus lunatus ] 在中国从玉米(Zea maydis ) 孤立。从蛋白质的 1-DE 胶化侧面, 110 个可再现的乐队与六被分开 C 孤立。lunata CX-3, SD-6, C-152, C107-1, DD-60 和 W-18。68 个乐队(61.82%) 是多态的,建议在 isolates 之中的巨大的生物多样性。所有孤立组由 0.605 的系数价值由不同剧毒的类型组成因为实验被聚类进三。组织 1,由有高毒力的 CX-3, SD-6 和 C-152 组成比组显示了更多的蛋白质乐队第 2a 3,与低毒力由 C107-1 和 DD-60 组成。Proteomics 途径基于 2-DEtechniques 被使用识别在 CX-3 和 DD-60 与毒力区别联系的特定的蛋白质。423 个蛋白质点的一个总数被分开。从他们, 75 个特定的蛋白质点在 2-DE 胶化被显示。在他们之中, 28 个蛋白质点在 CX-3 是唯一的, 8 在两 2-DE 胶化上在 DD-60,和 39 个蛋白质点被显示出,但是在紧张不同地表示。包括三个唯一的蛋白质点和 17 差别的 Twentyprotein 点在 CX-3 表示了蛋白质点(超过 2 褶层 DD-60 ) 进一步与 MALDI-TOF MS/MS 被识别。结果显示大多数识别蛋白质被发现与毒力区别,新陈代谢,压力反应和信号转导被联系。他们之一作为 Brn1 蛋白质被识别,它被报导了在真菌与黑素生合成和毒力区别有关。与我们的以前的调查结果结合了,我们假设那 Brn1 蛋白质和它的调整产品可能涉及 C 的毒力区别。lunata。因而,我们克隆 Brn1cDNA 碎片并且在另外的真菌与碎片联盟。结果显示 Brn1 的 633-bpsequence 在 C 克隆。lunata 是高度与比较真菌逻辑的人。为在我们的情况中的 Brn1 的准确基因角色的进一步的工作是在进行之中的……Shufa Xu Jie Chen Lixing Liu Xiaofei Wang Xiuli Huang Yuhong Zhai 2007Journal of Integrative Plant Biology2007,49,4:25
5Numerical simulation of powder transport behavior in laser cladding with coaxial powder feeding显示文摘Laser cladding with coaxial powder feeding is one of the new processes applied to produce well bonding coating on the component to improve performance of its surface. In the process, the clad material is transported by the carrying gas through the coaxial nozzle, generating gas-powder flow. The powder feeding process in the coaxial laser cladding has important influence on the clad qualities. A 3D numerical model was developed to study the powder stream structure of a coaxial feeding nozzle. The predicted powder stream structure was well agreed with the experimental one. The validated model was used to explore the collision behavior of particles in the coaxial nozzle, as well as powder concentration distribution. It was found that the particle diameter and restitution coefficient greatly affect the velocity vector at outlet of nozzle due to the collisions, as well as the powder stream convergence characteristics below the nozzle. The results indicated a practical approach to optimize the powder stream for the coaxial laser cladding.LIU Hao HE XiuLi YU Gang WANG Zhong Bin LI ShaoXia ZHENG CaiYun NING WeiJian 2015Science China(Physics,Mechanics & Astronomy)2015,58,10:17
6Major and trace element geochemistry of the mid-Bay of Bengal surface sediments: implications for provenance显示文摘The major and trace elements in 110 surface sediment samples collected from the middle of the Bay of Bengal(mid-Bay of Bengal) are analyzed to investigate provenance. Si levels are highest, followed by Al, and the distributions of these two elements are identical. The average CIA*(chemical index of alteration) value is 72.07,indicating that the degree of weathering of the sediments in the study area is intermediate between those of sediments of the Himalayan and Indian rivers. Factor analyses and discrimination function analyses imply that the two main provenances are the Himalayan and the Indian continent. The inverse model calculation of the Tinormalized element ratios of the Bay of Bengal sediments indicate an estimated average contribution of 83.5%and 16.5% from the Himalayan and peninsular Indian rivers to the study area, respectively. The Himalayan source contributes more sediment to the eastern part of the study area, whereas the western part receives more sediment from the Indian Peninsula than did the eastern part. The primary mechanisms for deposition of sediments in the study area are the transport of Himalayan matter by turbidity currents and river-diluted water and the transport of Indian matter to the study area by a surface circulation in the Bay of Bengal, particularly the East India Coastal Current.LI Jingrui LIU Shengfa FENG Xiuli SUN Xingquan SHI Xuefa 2017Acta Oceanologica Sinica2017,36,3:12
7Interface issues of lithium metal anode for high-energy batteries: Challenges, strategies, and perspectives显示文摘Lithium(Li)metal is considered as one of the most promising anode materials for next-generation high-energy-density storage systems.However,the practical application of Li metal anode is hindered by interfacial instability and air instability due to the highly reactivity of Li metal.Unstable interface in Li metal batteries(LMBs)directly dictates Li dendrite growth,“dead Li”and low Coulombic efficiency,resulting in inferior electrochemical performance of LMBs and even safety issues.In addition,its sensitivity to ambient air leads to the severe corrosion of Li metal anode,high requirements of production and storage,and increased manufacturing cost.Plenty of efforts in recent years have overcome many bottlenecks in these fields and hastened the practical applications of high-energy-density LMBs.In this review,we focus on emerging methods of these two aspects to fulfill a stable and low cost electrode.In this perspective,design artificial solid electrolyte interphase(SEI)layers,construct three-dimensional conductive current collectors,optimize electrolytes,employ solid-state electrolytes,and modify separators are summarized to be propitious to ameliorate interfacial stability.Meanwhile,ex situ/in situ formed protective layers are highlighted in favor of heightening air stability.Finally,several possible directions for the future research on advanced Li metal anode are addressed.Yiyao Han Bo Liu Zhen Xiao Wenkui Zhang Xiuli Wang Guoxiang Pan Yang Xia Xinhui Xia Jiangping Tu 2021InfoMat2021,3,2:11
8Multi-scale thermodynamic analysis method for 2D SiC/SiC composite turbine guide vanes显示文摘Ceramic Matrix Composite(CMC) turbine guide vanes possess multi-scale stress and strain with inhomogeneity at the microscopic scale.Given that the macroscopic distribution cannot reflect the microscopic stress fluctuation, the macroscopic method fails to meet the requirements of stress and strain analysis of CMC turbine guide vanes.Furthermore, the complete thermodynamic properties of 2 D woven SiC/SiC-CMC cannot be obtained through experimentation.Accordingly,a method to calculate the thermodynamic properties of CMC and analyze multi-scale stress and strain of the turbine guide vanes should be established.In this study, the multi-scale thermodynamic analysis is investigated.The thermodynamic properties of Chemical Vapor Infiltration(CVI) processed SiC/SiC-CMC are predicted by a Representative Volume Element(RVE) model with porosity, leading to the result that the relative error between the calculated in-plane tensile modulus and the experimental value is 4.2%.The macroscopic response of a guide vane under given conditions is predicted.The relative error between the predicted strain on the trailing edge and the experimental value is 9.7%.The calculation of the stress distribution of micro-scale RVE shows that the maximum value of microscopic stress, which is located in the interlayer matrix, is more than 1.5 times that of macroscopic stress in the same direction and the microscopic stress distribution of the interlayer matrix is related to the pore distribution of the composite.Xin LIU Xiuli SHEN Longdong GONG Peng LI 2018Chinese Journal of Aeronautics2018,31,1:9
9Revisiting Scientific Issues for Industrial Applications of Lithium–Sulfur Batteries显示文摘Inspired by high theoretical energy density(-2600 W h kg^(-1))and cost-effectiveness of sulfur cathode,lithium–sulfur batteries are receiving great attention and considered as one of the most promising next-generation high-energy-density batteries.However,over the past decades,the energy density and reliable safety levels as well as the commercial progress of lithium-sulfur batteries are still far from satisfactory due to the disconnection and huge gap between fundamental research and practical application.Bo Liu Ruyi Fang Dong Xie Wenkui Zhang Hui Huang Yang Xia Xiuli Wang Xinhui Xia Jiangping Tu 2018Energy & Environmental Materials2018,1,4:9
10An Arctic sea ice thickness variability revealed from satellite altimetric measurements显示文摘A modified algorithm taking into account the first year(FY) and multiyear(MY) ice densities is used to derive a sea ice thickness from freeboard measurements acquired by satellite altimetry ICESat(2003–2008). Estimates agree with various independent in situ measurements within 0.21 m. Both the fall and winter campaigns see a dramatic extent retreat of thicker MY ice that survives at least one summer melting season. There were strong seasonal and interannual variabilities with regard to the mean thickness. Seasonal increases of 0.53 m for FY the ice and 0.29 m for the MY ice between the autumn and the winter ICESat campaigns, roughly 4–5 month separation, were found. Interannually, the significant MY ice thickness declines over the consecutive four ICESat winter campaigns(2005–2008) leads to a pronounced thickness drop of 0.8 m in MY sea ice zones. No clear trend was identified from the averaged thickness of thinner, FY ice that emerges in autumn and winter and melts in summer. Uncertainty estimates for our calculated thickness, caused by the standard deviations of multiple input parameters including freeboard, ice density, snow density, snow depth, show large errors more than 0.5 m in thicker MY ice zones and relatively small standard deviations under 0.5 m elsewhere. Moreover, a sensitivity analysis is implemented to determine the separate impact on the thickness estimate in the dependence of an individual input variable as mentioned above. The results show systematic bias of the estimated ice thickness appears to be mainly caused by the variations of freeboard as well as the ice density whereas the snow density and depth brings about relatively insignificant errors.BI Haibo HUANG Haijun SU Qiao YAN Liwen LIU Yanxia XU Xiuli 2014Acta Oceanologica Sinica2014,33,11:8
11Natural and unnatural anthraquinones isolated from the ethanol extract of the roots of Knoxia valerianoides显示文摘Eight new 9,10-anthraquinones(1-8)including three acetonide derivatives of 3-hydroxy-2-hydroxymethyl-9,10-anthraquinones(68)were isolated from an ethanol extract of the roots of Knoxia valeriamoides.On the basis of chemical transformation reactions of the co-occurring 14 and 15 combined with HPLC-DAD-ESI-MS analysis of the extracts,the previously and newly isolated 2-methoxymethy-and 2-ethoxymethyl-9,10-anthraquinones(4,5,and 9-13),as well as the 3-hydroxy-2-hydroxymethyl-9,10-anthraquinone acetonide derivatives(68),were shown to be solvolytic artifacts.In the in vitro assays,compound 4 was active to protect hepatocyte(WB-F344)damage.Feng Zhao Sujuan Wang Sheng Lin Chenggen Zhu Zhenggang Yue Yang Yu Bo Liu Xiuli Wu Yongchun Yang Yan Li Jiangong Shi 2012Acta Pharmaceutica Sinica B2012,2,3:7
1230 GHz GeSn photodetector on SOI substrate for 2 µm wavelength application显示文摘We report the demonstration of a normal-incidence p-i-n germanium-tin(Ge_(0.951)Sn_(0.049))photodetector on silicon-on-insulator substrate for 2μm wavelength application.The DC and RF characteristics of the devices have been characterized.A dark current density under−1 V bias of approximately 125 mA/cm^(2) is achieved at room temperature,and the optical responsivity of 14 mA/W is realized for illumination wavelength of 2μm under−1 V reverse bias.In addition,a 3 dB bandwidth(f_(3dB))of around 30 GHz is achieved at−3 V,which is the highest reported value among all group III–V and group IV photodetectors working in the 2μm wavelength range.This work illustrates that a GeSn photodetector has great prospects in 2μm wavelength optical communication.Xiuli Li Linzhi Peng Zhi Liu Zhiqi Zhou Jun Zheng Chunlai Xue Yuhua Zuo Baile Chen Buwen Cheng 2021Photonics Research2021,9,4:6
13Umbilical cord-derived mesenchymal stem cells regulate thymic epithelial cell development and function in Foxn 1^-/- mice显示文摘Guangyang Liu Lihua Wang Tianxiang Pang Delin Zhu Yi Xu Hanyu Wang Xiuli Cong Yongjun Liu 2014Cellular & Molecular Immunology2014,11,3:6
14Dark matter direct search sensitivity of the PandaX-4T experiment显示文摘The Panda X-4T experiment, a 4-ton scale dark matter direct detection experiment, is being planned at the China Jinping Underground Laboratory. In this paper we present a simulation study of the expected background in this experiment. In a 2.8-ton fiducial mass and the signal region between 1-10 keV electron equivalent energy, the total electron recoil background is found to be 4.9 × 10^(-5) kg^(-1) d^(-1) keV^(-1). The nuclear recoil background in the same region is 2.8 × 10^(-7) kg^(-1) d^(-1) keV^(-1). With an exposure of 5.6 ton-years, the sensitivity of Panda X-4 T could reach a minimum spin-independent dark matter-nucleon cross section of 6 × 10^(-48) cm^2 at a dark matter mass of 40 Ge V/c^2.HongGuang Zhang Abdusalam Abdukerim Wei Chen Xun Chen YunHua Chen XiangYi Cui BinBin Dong DeQing Fang ChangBo Fu Karl Giboni Franco Giuliani LinHui Gu XuYuan Guo ZhiFan Guo Ke Han ChangDa He ShengMing He Di Huang XingTao Huang Zhou Huang Peng Ji XiangDong Ji YongLin Ju ShaoLi Li Yao Li Heng Lin HuaXuan Liu JiangLai Liu YuGang Ma YaJun Mao KaiXiang Ni JinHua Ning XiangXiang Ren Fang Shi AnDi Tan AnQing Wang Cheng Wang HongWei Wang Meng Wang QiuHong Wang SiGuang Wang XiuLi Wang XuMing Wang Zhou Wang MengMeng Wu ShiYong Wu JingKai Xia MengJiao Xiao PengWei Xie BinBin Yan JiJun Yang Yong Yang ChunXu Yu JuMin Yuan JianFeng Yue Dan Zhang Tao Zhang Li Zhao QiBin Zheng JiFang Zhou Ning Zhou XiaoPeng Zhou 2019Science China(Physics,Mechanics & Astronomy)2019,62,3:6
15Comparative proteomic analysis of the response in resistant and susceptible maize inbred lines to infection by Curvularia lunata显示文摘Proteins differentially expressed from maize leaves in response to the infection by Curvularia lunata strain CX-3 were identified through a high-resolution two-dimensional gel electrophoresis (2-DE) method. Two inbred lines, 78599-1 and E28, were used, respectively, as resistant and susceptible lines to CX-3 infection. Proteins were extracted from the fourth leaves of sixor seven-leaf stage plants sampled at 24, 36, 48, 60, and 72 h after inoculation with CX-3. Twenty-seven differentially expressed protein spots resolved on the 2-DE gels were identified by MALDI-TOF MS/MS. The results showed that these proteins are associated with photosynthesis, respiration, oxidative and drought stress tolerance as well as signal transduction in maize. Among stress-related proteins, the 22 kDa drought-inducible protein, putative glutathione peroxidase (GPX), and translation initiation factor (eIF-5A) were up-regulated in the resistant inbred line and were implicated in host defense response to C. lunata infection. It suggests that drought-inducible and oxidation stress-related proteins might directly contribute to maize resistance to C. lunata.Xiuli Huang 1, Lixing Liu 1, Jie Chen Yuhong Zhai Department of Plant Science, School of Agriculture and Biology, Key Laboratory of Microbial Metabolism, Ministry of Education, Shanghai Jiaotong University, Shanghai 200240, China 2009Progress in Natural Science:Materials International2009,19,7:6
16Monitor and control of neuronal activities with femtosecond pulse laser显示文摘Combined with the fluorescence labeling technique, two-photon microscopy excited with femtosecond pulse laser has become an important tool for neuroscience research. In this research, the calcium signals from neurons in rat cortex slice were monitored by a custom-built two-photon microscopy, and the spontaneous calcium signals and the pharmacological responses as well as the responses to femtosecond pulse laser stimulation were recorded. The results showed that the amplitude of the cal-cium signals increased in direct proportion to the corresponding electrical activities. Glutamate induced a calcium transient, but continuous application resulted in smaller response. Simultaneous monitoring of neuronal populations distinguished the neurons of different microcircuits. The femtosecond pulse laser induced local or global calcium signals in the pyramidal neurons. The approach of interrogation and control of neural activities using femtosecond pulse laser is non-contact, nondestructive, repeatable, and without any additional substrates, which will contribute to the development of neuroscience.ZHOU Wei LIU XiuLi LU XiaoHua LI JiaSong LUO QingMing ZENG ShaoQun 2008Chinese Science Bulletin2008,53,5:5
17Direct imaging and determination of the crystal structure of six-layered graphdiyne显示文摘自从它的发现,因为它在由一根电子横梁的照耀下面是太精细的,很少层 graphdiyne 的水晶结构的直接成像和决心证明了困难。在这个工作,六分层的 graphdiyne nanosheet 的水晶结构被低电压的传播电子显微镜学(TEM ) 直接用低当前的密度观察。高分辨率的 TEM (HRTEM ) 模拟,电子精力损失光谱学,和电子衍射的联合使用表明同样综合的 nanosheet 是有 2.19 nm 的厚度的水晶的 graphdiyne (相应于六层的厚度) 并且叠的显示出的 ABC。因此,这个工作为存在和很少层 graphdiyne 的水晶结构提供直接证据,它是对 graphene 补足的二维的碳材料的一种新类型。Chao Li Xiuli Lu Yingying Han Shangfeng Tang Yi Ding Ruirui Liu Haihong Bao Yuliang Li Jun Luo Tongbu Lu 2018Nano Research2018,11,3:5
18Relationship between physicochemical properties and dewaterability of hydrothermal sludge derived from different source显示文摘Sewage sludge(SS) and deinking sludge(DS) were used to comparatively study the hydrothermal dewatering of sludge with different components. For a better overview, an insight into the relationship between physicochemical properties and dewaterability of hydrothermal sludge was provided. Results found that not all kinds of sludge were suitably conditioned by hydrothermal treatment(HT) in term of the elevation of dewaterability.Higher hydrothermal temperature tended to enhance the dewaterability of SS rather than DS, which was supported by the variation of their physicochemical properties(including water distribution, bonding energy, extracellular polymeric substance(EPS), particles size,acid functional groups and zeta potential in this study). In addition, the changes in surface morphology suggested that the reverse effect of HT on sludge dewaterability was mainly due to their dewatering behavior. For SS, the destruction of EPS structure leaded to the release of bound water, thereby strengthening sludge dewatering. Conversely, 'Bridging effect' generated by lignocellulose in DS was beneficial for sludge dewatering; however, the increasing hydrothermal temperature degraded part of lignocellulose and weakened'bridging effect', finally resulting in worse dewaterability of DS.Xiuzheng Zhuang Yanqin Huang Huacai Liu Hongyou Yuan Xiuli Yin Chuangzhi Wu 2018Journal of Environmental Sciences2018,30,7:5
19Dynamic changes of phosphatidylinositol and phosphatidylinositol 4-phosphate levels modulate H^(+)-ATPase and Na^(+)/H^(+) antiporter activities to maintain ion homeostasis in Arabidopsis under salt stress显示文摘Plant metabolites are dynamically modified and distributed in response to environmental changes.How-ever,it is poorly understood how metabolic change functions in plant stress responses.Maintaining ion ho-meostasis under salt stress requires coordinated activation of two types of central regulators:plasma membrane(PM)H^(+)-ATPase and Na^(+)/H^(+) antiporter.In this study,we used a bioassay-guided isolation approach to identify endogenous small molecules that affect PM H^(+)-ATPase and Na^(+)/H^(+) antiporter activities and identified phosphatidylinositol(PI),which inhibits PM H^(+)-ATPase activity under non-stress conditions in Arabidopsis by directly binding to the C terminus of the PM H^(+)-ATPase AHA2.Under salt stress,the phosphatidylinositol 4-phosphate-to-phosphatidylinositol(PI4P-to-PI)ratio increased,and PI4P bound and activated the PM Na^(+)/H^(+) antiporter.PI prefers binding to the inactive form of PM H^(+)-ATPase,while PI4P tends to bind to the active form of the Na^(+)/H^(+) antiporter.Consistent with this,pis1 mutants,with reduced levels of PI,displayed increased PM H^(+)-ATPase activity and salt stress toler-ance,while the pi4kβ1 mutant,with reduced levels of PI4P,displayed reduced PM Na^(+)/H^(+) antiporter activity and salt stress tolerance.Collectively,our results reveal that the dynamic change between PI and PI4P in response to salt stress in Arabidopsis is crucial for maintaining ion homeostasis to protect plants from un-favorable environmental conditions.Yongqing Yang Xiuli Han Liang Ma Yujiao Wu Xiao Liu Haiqi Fu Guoyong Liu Xiaoguang Lei Yan Guo 2021Molecular Plant2021,14,12:4
20Seismic stability of jointed rock slopes under obliquely incident earthquake waves显示文摘Seismic stability of slopes has been traditionally analyzed with vertically propagated earthquake waves.However,for rock slopes,the earthquake waves might approach the outcrop still with a evidently oblique direction.To investigate the impact of obliquely incident earthquake excitations,the input method for SV and P waves with arbitrary incident angles is conducted,respectively,by adopting the equivalent nodal force method together with a viscous-spring boundary.Then,the input method is introduced within the framework of ABAQUS software and verified by a numerical example.Both SV and P waves input are considered herein for a 2 D jointed rock slope.For the jointed rock mass,the jointed material model in ABAQUS software is employed to simulate its behavior as a continuum.Results of the study show that the earthquake incident angles have significance on the seismic stability of jointed rock slopes.The larger the incident angle,the greater the risk of slope instability.Furthermore,the stability of the jointed rock slopes also is affected by wave types of earthquakes heavily.P waves induce weaker responses and SV waves are shown to be more critical.Huang Jingqi Zhao Mi Xu Chengshun Du Xiuli Jin Liu Zhao Xu 2018Earthquake Engineering and Engineering Vibration2018,17,3:4
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