国家自然科学基金(50909041)

作品数：24被引量：145H指数：9
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相关作者：虞鸿李波彭妍汪亚超徐波更多>>
相关机构：河海大学长江科学院国家工程研究中心南京水利科学研究院更多>>
相关期刊：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》《中国科学：技术科学》《Science China(Technological Sciences)》《三峡大学学报（自然科学版）》更多>>
相关主题：DAM监测资料分析CONCRETECRACKXFEM更多>>
相关领域：水利工程理学动力工程及工程热物理冶金工程更多>>
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Fluid solid coupling model based on endochronic damage for roller compacted concrete dam被引量：4
《Journal of Central South University》2013年第11期3247-3255,共9页顾冲时 魏博文 徐镇凯 刘大文 
Projects(51139001,51179066,51079046,50909041) supported by the National Natural Science Foundation of China;Project(NCET-10-0359) supported by the Program for New Century Excellent Talents in University;Projects(2009586012,2009586912,2010585212)supported by the Special Fund of State Key Laboratory of China
According to the characteristics of thin-layer rolling and pouting construction technology and the complicated mechanical behavior of the roller compacted concrete dam （RCCD） construction interface, a constitutive m...
关键词：roller compacted concrete dam endochronic damage fluid-solid coupling analytical model 
Information fusion diagnosis and early-warning method for monitoring the long-term service safety of high dams被引量：3
《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2012年第9期687-699,共13页Xing LIU Zhong-ru WU Yang YANG Jiang HU Bo XU 
Project supported by the National Natural Science Foundation of China (Nos. 51139001,51179066,51079046,and 50909041)
Analyzing the service behavior of high dams and establishing early-warning systems for them have become increasingly important in ensuring their long-term service.Current analysis methods used to obtain safety monitor...
关键词：Dam monitoring DIAGNOSIS Early-warning Multi-source information fusion Information entropy 
确定大坝效应量真实分量比例的灰色距离测度研究被引量：1
《水力发电》2012年第8期89-92,共4页梅一韬 邱亚男 吴邦彬 仲云飞 顾浩钦 丰莎 王雷 
国家自然科学基金资助项目(51139001,51179066,51079046,50909041);新世纪优秀人才支持计划资助(NCET-11-0628,NCET-10-0359;水利部公益性行业科研专项经费项目(201201038);中国电力投资集团公司科技项目(2011-042-HHS-KJ-X)
为了评价各因素对大坝监测效应量的综合影响程度,提出一种新的灰色距离测度,并应用于大坝效应量分量比例确定中。首先利用主成分确定各分量真实系数,然后应用该理论确定各个分量的比例。工程实例表明,该方法简单可行,能科学有效地确定...
关键词：灰色距离测度 效应量分量比例 真实系数 大坝监控 
Comprehensive evaluation methods for dam service status被引量：10
《Science China(Technological Sciences)》2012年第8期2300-2312,共13页WU ZhongRu XU Bo GU ChongShi LI ZhanChao 
supported by the National Natural Science Foundation of China (Grant Nos. 51139001,51179066,51079046,50909041);the Program for New Century Excellent Talents in University (Grant No. NCET-10-0359);Jiangsu Province "333 High-Level Personnel Training Project" (Grant No. 2017-B08037);the Ministry of Water Resources Public Welfare Industry Research Special Fund Project (Grant No. 201201038)
More than 87000 dams have been built in China,and about one third of them are risky projects.A number of high and ultra-high dams are being constructed in China's western region.The current dam construction practice t...
关键词：DAM service status assessment principles evaluation methods comprehensive evaluation model 
Analysis method of thermal dam deformation被引量：2
《Science China(Technological Sciences)》2012年第6期1765-1772,共8页XU BaoSong LIU BeiBei ZHENG DongJian CHEN Lan WU CongCong 
supported by the National Natural Science Foundation of China (Grant Nos. 51079046,50909041,51139001);the Open Research Fund of State Key Laboratory of Simulation and Regulation of Water Cyclein River Basin (Grant No. IWHR-SKL-201108);the Special Fund of State Key Laboratory of China (Grant Nos. 2009586012,2009586912,201058-5212);the Fundamental Research Funds for the Central Universities(Grant Nos. 2009B08514,2010B20414,2010B01414,2010B14114);Jiangsu Province "333 High-Level Personnel Training Project" (Grant No.2017-B08037);Graduate Innovation Program of Universities in Jiangsu Province (Grant No. CX09B_163Z);the Science Foundation for the Excellent Youth Scholars of Ministry of Education of China (Grant No.20070294023)
Based on the internal temperature variation of a dam lagging behind the ambient temperature variation,the ambient temperature of continuous variation is disctetized,and the functional expression of the thermal displac...
关键词：concrete dam thermal effect thermal displacement component safety monitoring model 
基于XFEM的拱坝裂缝变形监控混合模型被引量：7
《中国科学：技术科学》2012年第2期213-219,共7页郑东健 霍中艳 李波 
国家自然科学基金(批准号:50879024,50909041);河海大学水文水资源与水利工程科学国家重点实验室专项基金(批准号:2009586012,2010585212);中央高校基本科研业务费项目(批准号:2009B08514,2010B20414)资助
鉴于扩展有限元可以快速建立不同扩展情况下的裂缝变形测点监控混合模型,不需要进行不连续面局部网格重划分,因此,本文利用基于黏聚性裂缝模型并考虑裂尖加强的扩展有限元法模拟裂缝的扩展过程,建立了混凝土拱坝黏聚裂缝的断裂模型,通...
关键词：扩展有限元 黏聚性裂缝 混凝土拱坝 混合模型 
Ill-conditioned problems of dam safety monitoring models and their processing methods被引量：1
《Science China(Technological Sciences)》2011年第12期3275-3280,共6页GU ChongShi WANG YaChao PENG Yan XU BaoSon 
supported by the National Natural Science Foundation of China (Grant Nos. 51079046, 50909041, 50809025, 50879024, 51139001);the National Science and Technology Support Plan (Grant Nos. 2008BAB29B03, 2008BAB29B06);the Special Fund of State Key Laboratory of China (Grant Nos. 2009586012, 2009586912, 2010585212);the Fundamental Research Funds for the Central Universities (Grant Nos. 2009B08514, 2010B20414, 2010B01414, 2010B14114);China Hydropower Engineering Consulting Group Co. Science and Technology Support Project (Grant No. CHC-KJ-2007-02);Jiangsu Province "333 High-Level Personnel Training Project" (Grant No. 2017-B08037);the Graduate Innovation Program of Universities in Jiangsu Province (Grant No. CX09B_163Z);the Science Foundation for the Excellent Youth Scholars of Ministry of Education of China (Grant No. 20070294023)
The focus of this paper is the ill-conditioned problems in the dam safety monitoring model. The reasons to give rise to the ill-conditioned problems in statistical models,deterministic models and hybrid models are ana...
关键词：dam safety monitoring model ILL-CONDITIONED processing method 
Arch-dam crack deformation monitoring hybrid model based on XFEM被引量：10
《Science China(Technological Sciences)》2011年第10期2611-2617,共7页ZHENG DongJian HUO ZhongYan LI Bo 
supported by the National Natural Science Foundation of China (Grant Nos. 50879024,50909041);Special Fund of State Key Laboratory of China (Grant Nos. 2009586012,2010585212) ;the Fun-damental Research Funds for the Central Universities (Grant Nos. 2009B08514,2010B20414)
An extended finite element method incorporated with the cohesive crack model(CCM-based XFEM) is developed in consideration of crack tip enrichment.It could improve the accuracy and is introduced into dam safety monito...
关键词：XFEM cohesive crack model concrete arch dam hybrid model 
Abnormality monitoring model of cracks in concrete dams被引量：9
《Science China(Technological Sciences)》2011年第7期1914-1922,共9页BAO TengFei QIN Dong ZHOU XiWu WU GuiFen 
supported by the National Natural Science Foundation of China (Grant Nos. 51079046, 50909041, 50809025, 50879024);the National Science and Technology Support Plan (Grant Nos. 2008BAB29B03, 2008BAB29B06);the Special Fund of State Key Laboratory of China (Grant Nos. 2009586012, 2009586912, 2010585212);the Fundamental Research Funds for the Central Universities (Grant Nos. 2009B08514, 2010B20414, 2010B01414, 2010B14114);China Hydropower Engineering Consulting Group Co. Science and Technology Support Project (Grant No. CHC-KJ-2007-02);Jiangsu Province "333 High-Level Personnel Training Project" (Grant No. 2017-B08037);Graduate Innovation Program of Universities in Jiangsu Province (Grant No. CX09B_163Z);Science Foundation for The Excellent Youth Scholars of Ministry of Education of China (Grant No. 20070294023)
The abnormality monitoring model (AMM) of cracks in concrete dams is established through integrating safety monitoring theories with abnormality diagnosis methods of cracks. In addition, emphasis is placed on the infl...
关键词：concrete dam cracks abnormality monitoring model a linear hypothesis abnormality diagnosis particle swarm optimization method 
Abnormality diagnosis of cracks in the concrete dam based on dynamical structure mutation被引量：18
《Science China(Technological Sciences)》2011年第7期1930-1939,共10页GU ChongShi LI ZhanChao XU Bo 
supported by the National Natural Science Foundation of China (Grant Nos. 51079046, 50909041, 50809025, 50879024);the National Science and Technology Support Plan (Grant Nos. 2008BAB29B03, 2008BAB29B06);the Special Fund of State Key Laboratory of China (Grant Nos. 2009586012, 2010585212);the Fundamental Research Funds for the Central Universities (Grant Nos. 2009B08514, 2010B20414, 2010B14114);China Hydropower Engineering Consulting Group Co. Science and Technology Support Project (Grant No. CHC-KJ-2007-02);Jiangsu Province "333 High-Level Personnel Training Project" (Grant No. 2017-B08037);the Natural Science Foundation of Hohai University (Grant No. 2008426811);Graduate Innovation Program of Universities in Jiangsu Province (Grant No. CX09B_163Z);the Science Foundation for The Excellent Youth Scholars of Ministry of Education of China (Grant No. 20070294023);Dominant Discipline Construction Program Funded Projects of Universities in Jiangsu Province
A method of the fuzzy cross-correlation factor exponent in dynamics is researched and proposed to diagnose abnormality of cracks in the concrete dam. Moreover, the Logistic time series changing from period-doubling bi...
关键词：dynamical structure mutation cracks in the concrete dam method of the fuzzy cross-correlation factor exponent indynamics abnormality diagnosis of cracks 
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