吉首大学学报（自然科学版）2025，Vol.46Issue(2)：45-50,6.DOI:10.13438/j.cnki.jdzk.2025.02.006
考虑水力耦合效应的填埋场覆盖层基质吸力解析解
Analytical Solution of Matrix Suction for Landfill Cover Layer with Hydro-Mechanical Effect
摘要
Abstract
Rainwater infiltration changes the size and distribution of matrix suction in landfill cover layer.To investigate the evolution characteristics of matric suction in the cover layer with hydraulic coupling effects,a water transport model for a landfill cover layer under rainfall infiltration is established based on the Fredlund's unsaturated soil constitutive model.The Gardner soil-water characteristic function and Fourier integral transform are used to obtain a analytical solution of the transient matric suction during rainwater infiltration with hydro-mechanical effect.Based on this analytical solution,a comparative anal-ysis was conducted on the differences in the evolution characteristics of matric suction in the cover layer with and without hydro-mechanical effects.It was found that the reduction rate and change amplitude of matric suction in the cover layer with hydro-mechanical effects were significantly lower than those with-out hydro-mechanical effects.关键词
填埋场覆盖层/水力耦合/基质吸力/解析解Key words
landfill cover layer/hydro-mechanical effect/matrix suction/analytical solution分类
土木建筑引用本文复制引用
陈检,秦卫星,曹新红,徐瑞麟,熊轩宇..考虑水力耦合效应的填埋场覆盖层基质吸力解析解[J].吉首大学学报（自然科学版）,2025,46(2):45-50,6.基金项目
国家自然科学基金资助项目(51208062,51508039) （51208062,51508039）
湖南省自然科学基金资助项目(2022JJ30601) （2022JJ30601）
