岩土工程学报Issue(6)：979-987,9.DOI:10.11779/CJGE201506002
土的卸荷回弹试验及其时间过程的计算方法
Swelling tests on soils and simulation method for unloading-swelling process
摘要
Abstract
The time-rate of swelling is investigated. The variation of the consolidation coefficient in swelling process and the similarity between absorbing water and absorbing air during the process are studied through experiments. The test results show that the coefficient of consolidation keeps changing in both processes of the consolidation and swelling, ranging up to 3 orders of magnitude. The coefficient of consolidation is not a fixed parameter but a process factor which repeats in each loading and unloading. The feasibility of applying the nonlinear consolidation theory in swelling process is studied. The time-varyingCv method for consolidation and swelling is proposed, and the parameters can be obtained by fitting the experimental results. The settlement and swelling deformation obtained by the proposed method are in good agreement with the experimental results in both loading and unloading processes.关键词
卸荷回弹/变Cv方法/固结系数/过程因子/过程模拟Key words
unloading swelling/time-varyingCv method/coefficient of consolidation/process factor/process simulation分类
建筑与水利引用本文复制引用
章为民,顾行文,王芳,王年香..土的卸荷回弹试验及其时间过程的计算方法[J].岩土工程学报,2015,(6):979-987,9.基金项目
国家自然科学基金项目 （）
