考虑水力耦合效应的填埋场覆盖层基质吸力解析解

doi:10.13438/j.cnki.jdzk.2025.02.006

吉首大学学报（自然科学版） ›› 2025, Vol. 46 ›› Issue (2): 45-50.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

陈检，秦卫星，曹新红，徐瑞麟，熊轩宇

（1.长沙理工大学水利与环境工程学院，湖南长沙 410114；2.水沙科学与水灾害防治湖南省重点实验室，湖南长沙 410114；3.浙江大学建筑工程学院，浙江杭州310056）

出版日期:2025-03-25 发布日期:2025-04-30
作者简介:陈检(1999—),男,湖南邵阳人,长沙理工大学水利与环境工程学院硕士研究生,主要从事岩土体灾变研究
基金资助:
国家自然科学基金资助项目（51208062，51508039）；湖南省自然科学基金资助项目（2022JJ30601）

Analytical Solution of Matrix Suction for Landfill Cover Layer with Hydro-Mechanical Effect

CHEN Jian,QIN Weixing,CAO Xinhon,XU Ruilin,XIONG Xuanyu

(1.School of Hydraulic and Environmental Engineering,Changsha University of Science & Technology,Changsha 410114,China;2.Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province,Changsha 410114,China;3.College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310056,China)

Online:2025-03-25 Published:2025-04-30

摘要/Abstract

摘要：雨水入渗会改变填埋场覆盖层中的基质吸力.为了探究考虑水力耦合效应的覆盖层基质吸力演化特性，基于Fredlund非饱和土本构模型构建了水力耦合作用下的覆盖层水分迁移模型，并引入Gardner土-水特征曲线模型，利用傅里叶积分变换法推导出考虑水力耦合效应的覆盖层基质吸力解析解.基于该解析解对比分析了考虑和不考虑水力耦合效应的覆盖层基质吸力演化特性，发现考虑水力耦合效应的覆盖层基质吸力的减小速度和变化幅度均明显小于不考虑水力耦合效应的情况.

关键词： 填埋场覆盖层, 水力耦合, 基质吸力, 解析解

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 analysis 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 without hydro-mechanical effects.

Key words: landfill cover layer, hydro-mechanical effect, matrix suction, analytical solution

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.

CHEN Jian, QIN Weixing, CAO Xinhon, XU Ruilin, XIONG Xuanyu. Analytical Solution of Matrix Suction for Landfill Cover Layer with Hydro-Mechanical Effect[J]. Journal of Jishou University(Natural Sciences Edition), 2025, 46(2): 45-50.

参考文献

[1] NG CHARLES W W,LIU Jian,CHEN Rui,et al.Physical and Numerical Modeling of an Inclined Three-Layer (Silt/Gravelly Sand/Clay) Capillary Barrier Cover System Under Extreme Rainfall[J].Waste Management,2015,38:210-221.
[2] 焦卫国,詹良通,季永新,等.黄土-碎石毛细阻滞覆盖层储水能力实测与分析[J].岩土工程学报,2019,41(6):1149-1157.
[3] 李宁,潘行,张茂建,等.降雨形式对毛细阻滞覆盖层防渗性能的影响研究[J].岩土力学,2022,43(6):1546-1556.
[4] SRIVASTAVA RAJESH,YEH T C JIM.Analytical Solutions for One-Dimensional,Transient Infiltration Toward the Water Table in Homogeneous and Layered Soils[J].Water Resources Research,1991,27(5):753-762.
[5] 徐瑞麟,秦卫星,胡惠仁,等.雨水入渗条件下地基瞬态极限承载力解析解及其应用[J].中南大学学报(自然科学版),2022,53(10):4048-4056.
[6] 詹良通,贾官伟,陈云敏,等.考虑土体非饱和特性的无限长斜坡降雨入渗解析解[J].岩土工程学报,2010,32(8):1214-1220.
[7] 李宁,许建聪.无限长均质斜坡降雨入渗解析解[J].岩土工程学报,2012,34(12):2325-2330.
[8] LIU H W,FENG S,GARG A,et al.Analytical Solutions of Pore-Water Pressure Distributions in a Vegetated Multi-Layered Slope Considering the Effects of Roots on Water Permeability[J].Computers and Geotechnics,2018,102:252-261.
[9] ZHAN T L T,QIU Q W,XU W J.Analytical Solution for Infiltration and Deep Percolation of Rainwater into a Monolithic Cover Subjected to Different Patterns of Rainfall[J].Computers and Geotechnics,2016,77:1-10.
[10] 邱清文,詹良通,黄依艺.考虑任意初始条件的均质土质覆盖层降雨入渗解析解[J].岩土工程学报,2017,39(2):359-365.
[11] WU L Z,SELVADURAI A P S,ZHANG L M,et al.Poro-Mechanical Coupling Influences on Potential for Rainfall-Induced Shallow Landslides in Unsaturated Soils[J].Advances in Water Resources,2016,98:114-121.
[12] WU Lizhou,CHENG Ping,ZHOU Jianting,et al.Analytical Solution of Rainfall Infiltration for Vegetated Slope in Unsaturated Soils Considering Hydro-Mechanical Effects[J].Catena,2022,217:106472.DOI:10.1016/ J.CATENA.2022.106472.
[13] 邵龙潭,覃亚龙,郭晓霞,等.非饱和土有效应力公式验证[J].地下空间与工程学报,2018,14(6):1476-1483.
[14] MIN Ming,PU Hefu,FENG Song,et al.Analytical Solution for Coupled Water-Gas Transport in Unsaturated Landfill Cover System with Different Root Architectures[J].Computers and Geotechnics,2023,154:105134.DOI:10.1016/ J.COMPGEO.2022.105134.
[15] OZISIK M N.Boundary Value Problems of Heat Conduction[M].New York:Dover,2002:58-63.
[16] SINGH SARVJEET,SINGLA ROHIT KUMAR.Experimental and Numerical Analysis of a Nonlinear Pin Fin with Temperature Dependent Properties and Disparate Boundary Conditions[J].International Communications in Heat and Mass Transfer,2019,108:104313.DOI:10.1016/J.icheatmas-stransfer.2019.104313.

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

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 2

编辑推荐

Metrics

本文评价

[1]	熊轩宇, 秦卫星, 徐瑞麟, 胡惠仁, 陈检, 吴亦晗. 中峰型降雨条件下均质地基瞬态基质吸力解析解[J]. 吉首大学学报（自然科学版）, 2025, 46(2): 39-44.
[2]	徐瑞麟, 秦卫星, 何勇, 胡惠仁, 阳乐, 王聪, 熊轩宇. 前峰型降雨入渗过程双层地基基质吸力解析解[J]. 吉首大学学报（自然科学版）, 2022, 43(3): 57-65.