东南大学学报（自然科学版）2016，Vol.46Issue(z1)：148-152,5.DOI:10.3969/j.issn.1001-0505.2016.S1.026
双荷载共同作用下土体变形影响机理及计算方法
Influence mechanism and calculation method for soil deformation under double load
摘要
Abstract
On the basis of explicitly given the definition of chemical loading and token variables, considering combined action of mechanical loading, the consolidation deformation of the soil is di-vided into mechanical consolidation deformation caused by mechanical loading and chemical-osmotic consolidation deformation induced by chemical loading. A calculation method for soil deformation considering chemo-mechanical coupling behavior is proposed. On the micro level, the mechanism of soil deformation under double load is analyzed. The calculation formula of volume change of macro pore is derived. According to permeability experimental results, quantitative analysis on the consoli-dation deformation of soil is carried out under the action of combined loads. The results show that the existence of chemicals can cause consolidation deformation of the soil, nevertheless, macro pore volume of soil does not have to be reduced. Due to desorption of adsorbed water to the macro pore space, soil macro pore channel may be widened and void ratio may be increased.关键词
化/力耦合/力学固结/化学/渗透固结/微观机理Key words
chemo-mechanical coupling/mechanical consolidation/chemical-osmotic consolida-tion/microcosmic mechanism分类
建筑与水利引用本文复制引用
张志红,师玉敏..双荷载共同作用下土体变形影响机理及计算方法[J].东南大学学报（自然科学版）,2016,46(z1):148-152,5.基金项目
国家自然科学基金面上资助项目(51378035) （51378035）
