大面积超载预压法处理软土地基的模拟分析  

SIMULATION ANALYSIS OF LARGE AREA OVERLOAD PRELOADING METHOD FOR SOFT SOIL FOUNDATION TREATMENT

作　　者：翟文沛 谭芳 李敏[2] 魏焕卫[2] Zhai Wen-pei;Tan Fang;Li Min;Wei Huan-wei

机构地区：[1]菏泽市铁路投资发展集团有限公司,山东菏泽274003 [2]山东建筑大学,济南250101

出　　处：《建筑技术开发》2023年第3期158-160,共3页Building Technology Development

摘　　要：利用有限元软件Settle 3D对某大面积超载预压工程进行了数值模拟和预测,分析了堆载对地基变形的影响,并对该工程的工后沉降情况进行了预测。分析结果表明,软基固结沉降主要发生在堆载预压阶段;固结度从堆载到满载静置阶段,会先下降再上升,然后随着时间发展逐渐趋于稳定。预测结果表明该工程完工后地基沉降量较小,超载预压效果显著。The finite element software settle 3D was used to numerically simulate and predict a large-area overload preloading project,analyze the impact of heap loading on the deformation of the foundation,and predict the post-construction settlement of the project.The analysis results show that the consolidation settlement of soft foundations mainly occurs in the preloading stage;the degree of consolidation will first drop and then rise from the stacking to the full-load standing stage,and then gradually stabilize over time.The prediction results show that the settlement of the foundation is small after the completion of the project is small,and the effect of overload preloading is significant.

关 键 词：超载预压 数值模拟 工后沉降 固结 

分 类 号：TU447[建筑科学—岩土工程]