建筑垃圾回填料对加筋土挡墙性能影响的数值分析  

NUMERICAL ANALYSIS OF THE INFLUENCE OF CONSTRUCTION WASTE BACKFILL ON THE PERFORMANCE OF REINFORCED SOIL RETAINING WALLS

作　　者：江厚亮 冯宇子 尹长权 JIANG Hou-liang;FENG Yu-zi;YIN Chang-quan(China Harbour Engineering Company Limit,100010,Beijing,China)

机构地区：[1]中国港湾工程有限责任公司,北京100010

出　　处：《建筑技术》2025年第7期863-865,共3页Architecture Technology

摘　　要：为研究建筑垃圾作为加筋土挡墙回填料的可行性与效果,运用有限差分软件FLAC3D建立条形荷载作用下加筋土挡墙的数值模型,对比分析分别由砂土、粘土以及建筑垃圾回填的加筋土挡墙稳定性、面板水平变形以及顶部竖向位移。结果表明:3种不同填料的稳定系数均满足安全设计标准,建筑垃圾填料挡墙与砂土及粘土挡墙相比稳定性更高;3种填料挡墙的面板水平变形与竖向沉降整体变化趋势一致,最大面板水平变形均发生在挡墙中部,竖向沉降最大值均出现在加载板底部;与砂土、粘土相比,建筑垃圾作为加筋土挡墙填料具有相对更大的稳定系数、更小的面板水平变形以及竖向沉降量。因此将建筑垃圾作为加筋土挡墙填料具有可行性,且能取得较好的效果。To study the feasibility and effectiveness of using construction waste as backfill material for reinforced soil retaining walls,a numerical model of reinforced soil retaining walls under strip loads was established using finite difference software FLAC3D.The stability,panel horizontal deformation,and top vertical displacement of reinforced soil retaining walls filled with sand,clay,and construction waste were compared and analyzed.The results showed that the stability coefficients of the three different fillers met the safety design standards,and the stability of the construction waste filler retaining wall was higher compared to the sand and clay retaining walls;The overall trend of horizontal deformation and vertical settlement of the three types of filling retaining walls is consistent,with the maximum horizontal deformation of the panels occurring in the middle of the retaining wall and the maximum vertical settlement occurring at the bottom of the loading plate.Compared with sandy soil and clay,construction waste as a filling material for reinforced soil retaining walls has a relatively larger stability coefficient,smaller horizontal deformation of panels,and vertical settlement.Therefore,using construction waste as filler for reinforced soil retaining walls is feasible and can achieve good results.

关 键 词：建筑垃圾 加筋土挡墙 数值模拟 稳定性 变形 

分 类 号：TU758.11[建筑科学—建筑技术科学]