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国家自然科学基金(10932012): 作品数：34被引量：151H指数：8; 导出分析报告; 相关作者：陈立周银军许文盛江磊吴梦喜更多>>; 相关机构：武汉大学长江科学院中国科学院力学研究所中国水电基础局有限公司更多>>; 相关期刊：《Theoretical & Applied Mechanics Letters》《International Journal of Sediment Research》《长江科学院院报》《水道港口》更多>>; 相关主题：河流溶解性物质三峡水库解吸EXPERIMENTAL_STUDY更多>>; 相关领域：水利工程理学天文地球建筑科学更多>>

On the degradation of granular materials due to internal erosion: 《Acta Mechanica Sinica》2015年第5期685-697,共13页Xiaoliang Wang Jiachun Li; the financial support by National Natural Science Foundation of China(Grants 11432015 and 10932012); A new state-based elasto-plastic constitutive relationship along with the discrete element model is established to estimate the degradation of granular materials due to internal erosion.Four essential effects of inter...; 关键词：Internal erosion DEGRADATION Granular materials Discrete element method

Simulation of triaxial response of granular materials by modified DEM被引量：4: 《Science China(Physics,Mechanics & Astronomy)》2014年第12期2297-2308,共12页WANG XiaoLiang LI JiaChun; supported by the National Natural Science Foundation of China(Grant Nos.11432015 and 10932012); A modified discrete element method(DEM)with rolling effect taken into consideration is developed to examine macroscopic behavior of granular materials in this study.Dimensional analysis is firstly performed to establi...; 关键词：granular materials rolling resistance DEM CALIBRATION YADE

Numerical Analysis of Adaptation-to-capacity Length for Fluvial Sediment Transport被引量：1: 《Journal of Mountain Science》2014年第6期1491-1498,共8页LI Zhi-jing CAO Zhi-xian Gareth PENDER HU Peng; funded by Natural Science Foundation of China (Grants Nos. 11172217, 10932012 and 10972164); Over the last several decades,various sediment transport capacity formulations have been used by geomorphologists and engineers to calculate fluvial morphological changes.However,it remains poorly understood if the ad...; 关键词：Sediment transport Sediment transport capacity Mathematical river modeling Bed load Suspended load

Numerical modelling of riverbed grain size stratigraphic evolution被引量：11: 《International Journal of Sediment Research》2014年第3期329-343,共15页Peng HU Zhi-xian CAO Gareth PENDER Huai-han LIU; funded by the Natural Science Foundation of China(Grant No.11172217 and 10932012);the Fundamental Research Funds for Central Universities(Grant No.2013QNA4041);the Natural Science Foundation of Zhejiang Province(Grant No.LQ13E090001),China; For several decades,quantification of riverbed grain size stratigraphic evolution has been based upon the active layer formulation（ALF）,which unfortunately involves considerable uncertainty.While it is the sediment ...; 关键词：Bedload Riverbed grain size stratigraphy Active layer formulation Surface-based formulation Numerical modelling

均质土石坝不同因素与漫顶破坏模式的内在联系被引量：8: 《武汉大学学报（工学版）》2014年第5期610-614,共5页罗优陈立郝婕妤杨阳; 国家自然科学基金项目(编号:10932012); 进行了均质土石坝漫顶破坏水槽试验,试验中观测到3种漫顶破坏模式:陡坎蚀退冲刷溃决模式、剪切蚀退坍塌溃决模式和浸泡剥蚀破坏模式,不同破坏模式溃口形成和发展阶段坝体破坏类型差异较大.坝高、筑坝材料、漫顶流量和坝顶抗侵蚀能力非...; 关键词：土石坝漫顶溃决破坏模式

Modified asymptotic Adomian decomposition method for solving Boussinesq equation of groundwater flow被引量：2: 《Applied Mathematics and Mechanics(English Edition)》2014年第4期481-488,共8页陈芳刘青泉; supported by the National Natural Science Funds of China for Distinguished Young Scholars(No.10825211);the Key of Natural Science Foundation of China(No.10932012);the Beijing Natural Science Foundation(No.1122015); The Adomian decomposition method （ADM） is an approximate analytic method for solving nonlinear equations. Generally, an approximate solution can be ob- tained by using only a few terms. However, in applications, we ...; 关键词：groundwater flow Boussinesq equation Adomian decomposition asymp-totic Adomian decomposition

强弱透水相间深厚覆盖层坝基的渗流分析被引量：16: 《水利学报》2013年第12期1439-1447,共9页吴梦喜杨连枝王锋; 国家自然科学基金重点项目资助(10932012); 覆盖层深厚且为强弱透水互层的闸坝基础在我国西南部河流中很常见，防渗墙通常作为坝基渗流控制设施。渗流有限元计算中，该种坝基上下游覆盖层截断边界面位置及其边界条件的设置往往是影响结果的重要因素，对其确定方法的研究具有重要...; 关键词：覆盖层防渗墙渗流渗透变形

硬填料坝应力计算方法探讨与特性分析: 《岩土力学》2013年第S2期229-236,241,共9页吴梦喜孙宁; 国家自然科学基金重点项目(No.10932012); 通过对一个100 m高典型硬填料坝的应力变形分析,指出坝体填筑过程和硬填料随龄期和应力状态变化的应力-应变特征的模拟对坝体应力变形结果影响显著不容忽略。采用二元本构模型和仿真计算方式,研究了地基弹性模量对坝体应力和强度安全性...; 关键词：硬填料坝应力有限元地基弹模

Strength softening models of soil and its application in rainfall-induced landslide simulation被引量：3: 《Theoretical & Applied Mechanics Letters》2013年第4期23-28,共6页Zhendong Fu Jiachun Li; supported by the National Natural Science Funds of China (10932012); In this study, strength softening models are developed for exploring rainfall-induced landslide mechanism based on Mohr Coulomb strength theory with both saturation degree and temporal evolution into consideration. Ac...; 关键词：homogeneous slope numerical simulation strength softening model rainfall-induced landslide geological disaster

Simulation procedure of unconfined seepage with an inner seepage face in a heterogeneous field被引量：7: 《Science China(Physics,Mechanics & Astronomy)》2013年第6期1139-1147,共9页WU MengXi YANG LianZhi YU Ting; supported by the National Natural Science Foundation of China (Grant No. 10932012);the China-Europe Science and Technology Cooperation Program (Grant No. 0820);European Commission(Grant No. FP7-NMP-2007-LARGE-1); An inner seepage face phenomenon is given and a numerical simulation procedure has been developed.It may appear at the interface of two materials when an unconfined seepage flows from a porous media to a coarser porou...; 关键词：unconfined seepage inner seepage face finite element method free surface

国家自然科学基金(10932012)