岩土工程学报2017，Vol.39Issue(6)：1022-1029,8.DOI:10.11779/CJGE201706007
饱和半空间表面无限长梁的沉降变形
Bending consolidation of an infinite beam of finite width resting on a saturated poroelastic halfspace
摘要
Abstract
The time-dependent flexural behavior of an infinite beam of finite width resting on the surface of a saturated poroelastic halfspace is examined.The vertical contact stress is assumed to be uniformly distributed across the beam section.The displacement continuity is achieved by equaling the beam deflection to the average displacement of the halfspace surface under the beam width.The drainage condition at the surface of the poroelastic halfspace is considered as either completely drained or completely undrained.The problem is analytically solved using the Fourier and Laplace transformations.The developed solutions are verified via comparisons with the existing analytical solutions and computational results by finite element code ABAQUSTM.The numerical results indicate that the beam bending rigidity,the drained and undrained Poisson's ratios and the drainage boundary conditions at the halfspace surface have important influences on the flexural responses of the beam.关键词
饱和半空间/梁/沉降变形/时域Key words
saturated poroelastic halfspace/beam/bending consolidation/time-domain分类
建筑与水利引用本文复制引用
王鹏,史吏,张丙钦,谷川..饱和半空间表面无限长梁的沉降变形[J].岩土工程学报,2017,39(6):1022-1029,8.基金项目
国家自然科学基金项目(51208383) （51208383）
浙江省自然科学基金项目(LQ12E08008) （LQ12E08008）
浙江省重点科技创新团队项目(2011R50020) （2011R50020）
