降雨下透明土边坡渗流与失稳模型试验可视化  

Visualization of model tests on seepage and instability of transparent soil slopes under rainfall conditions

作　　者：阙云[1] 陈建安 蔡松林 陈嘉 翁斌 QUE Yun;CHEN Jian’an;CAI Songlin;CHEN Jia;WENG Bin(College of Civil Engineering,Fuzhou University,Fuzhou,Fujian 350108,China;College of Computer and Data Science,Fuzhou University,Fuzhou,Fujian 350108,China)

机构地区：[1]福州大学土木工程学院,福建福州350108 [2]福州大学计算机与大数据学院,福建福州350108

出　　处：《福州大学学报(自然科学版)》2025年第2期218-225,233,共9页Journal of Fuzhou University(Natural Science Edition)

基　　金：福建省科技厅引导性基金资助项目(2022Y0079)。

摘　　要：为实现边坡变形及入渗过程的可视化,通过透明土技术和数字照相量测技术开展室内模型试验,分析降雨入渗下含优先流路径边坡和普通边坡渗流情况以及边坡失稳模式.结果表明:借助数字照相量测技术,可实现入渗过程及边坡变形可视化.普通边坡在非饱和渗流中以垂直入渗为主,在坡脚产生积油现象.含优先流路径边坡中孔隙流体在坡顶和优先渗流通道旁入渗速度快,湿润锋推移过程加快,坡脚处未出现积油现象,含优先流路径边坡面较普通坡面大幅减弱,滑裂面及冲刷沟均未出现.普通边坡与含优先流路径边坡最终破坏模式分别为圆弧型与直线型.In order to visualize the slope deformation and infiltration process,indoor model tests were conducted by using transparent soil principle and digital photogrammetry technology,focusing on the analysis of slope infiltration under rainfall infiltration and two types of transparent soil slope instability modes for slopes containing preferential flow paths and normal slopes.The results show that the infiltra tion process and slope deformation can be visualized with the help of digital photogrammetry technology.The normal slope is dominated by vertical infiltration in unsaturated seepage,and oil accumulation is generated at the foot of the slope.In the slope with priority flow path,the pore fluid infiltrates faster at the top of the slope and next to the priority seepage channel,and the wetting front process is accelerated,and oil accumulation does not occur at the foot of the slope.The final damage modes of the normal slope and the slope with priority flow path are circular and linear respectively.

关 键 词：透明土 数字照相量测 降雨入渗 优先流路径流 破坏模式 

分 类 号：U416.14[交通运输工程—道路与铁道工程]