随着互联网时代的迅猛发展,MOOC(Massive Open Online Courses)这种全球形式的互联网大型开放课程网络学习平台,以创新的教学理念与模式掀起高职教育教学改革新浪潮。MOOC平台具有工具资源多元化、课程受众面广、课程参与自主性强等方...随着互联网时代的迅猛发展,MOOC(Massive Open Online Courses)这种全球形式的互联网大型开放课程网络学习平台,以创新的教学理念与模式掀起高职教育教学改革新浪潮。MOOC平台具有工具资源多元化、课程受众面广、课程参与自主性强等方面的优势,给学习者带来不同于传统课堂教学的学习体验。本课题针对'平面设计'课程,以数字图文信息技术专业为例,通过将MOOC平台与线下实践教学相结合的课程设计教学方式,从课程多元化角度探讨课程柔性化设计方案,打造符合学生需求、有助于职业技能提升的课程教学模式。展开更多
Finite element method was performed to investigate the influences of beam stiffness, foundation width and cushion thickness on the beating capacity of beam foundation on underlying weak laminated clay. The comparison ...Finite element method was performed to investigate the influences of beam stiffness, foundation width and cushion thickness on the beating capacity of beam foundation on underlying weak laminated clay. The comparison between numerical results and results from field test including plate-bearing test and foundation settlement observation shows reasonable agreement. According to the numerical results, the beam width, length, cross section and cushion thickness were optimized. The results show that the stresses in subgrade soil decrease greatly with increasing the cushion thickness and width of foundation. However, the foundation settlement and influencing depth of displacement also increase correspondingly under conditions of relatively thinner cushion thickness. For the foundations on underlying weak layer, increasing foundation width merely might be inadequate for improving the bearing capacity, and the appropriate width and cushion thickness depend on the response of subgrade. A comparison between rigid and flexible beams was also discussed. The influence of a flexible beam foundation on subgrade is relatively smaller under the same loading conditions, and the flexible beam foundation appears more adaptable to various subgrades. The proposed flexible beam foundation was adopted in engineering. According to the calculation results, beam width of 2.4 m and cushion thickness of 0.8 m are proposed, and a flexible beam foundation is applied in the optimized design, which is confirmed reasonable by the actual engineering.展开更多
文摘随着互联网时代的迅猛发展,MOOC(Massive Open Online Courses)这种全球形式的互联网大型开放课程网络学习平台,以创新的教学理念与模式掀起高职教育教学改革新浪潮。MOOC平台具有工具资源多元化、课程受众面广、课程参与自主性强等方面的优势,给学习者带来不同于传统课堂教学的学习体验。本课题针对'平面设计'课程,以数字图文信息技术专业为例,通过将MOOC平台与线下实践教学相结合的课程设计教学方式,从课程多元化角度探讨课程柔性化设计方案,打造符合学生需求、有助于职业技能提升的课程教学模式。
基金Projects(50778181, 51178472) supported by the National Natural Science Foundation of China Project(2007045) supported by the Transportation Department of Hunan Province,China
文摘Finite element method was performed to investigate the influences of beam stiffness, foundation width and cushion thickness on the beating capacity of beam foundation on underlying weak laminated clay. The comparison between numerical results and results from field test including plate-bearing test and foundation settlement observation shows reasonable agreement. According to the numerical results, the beam width, length, cross section and cushion thickness were optimized. The results show that the stresses in subgrade soil decrease greatly with increasing the cushion thickness and width of foundation. However, the foundation settlement and influencing depth of displacement also increase correspondingly under conditions of relatively thinner cushion thickness. For the foundations on underlying weak layer, increasing foundation width merely might be inadequate for improving the bearing capacity, and the appropriate width and cushion thickness depend on the response of subgrade. A comparison between rigid and flexible beams was also discussed. The influence of a flexible beam foundation on subgrade is relatively smaller under the same loading conditions, and the flexible beam foundation appears more adaptable to various subgrades. The proposed flexible beam foundation was adopted in engineering. According to the calculation results, beam width of 2.4 m and cushion thickness of 0.8 m are proposed, and a flexible beam foundation is applied in the optimized design, which is confirmed reasonable by the actual engineering.
