泡沫轻质土在高填大跨波纹钢板结构中的应用研究  

Research on the application of foam lightweight soil in high-fill large-span corrugated steel plate structures

作　　者：杨伟利 Yang Weili(China Railway First Survey and Design Institute Group Co.,Ltd.,Xi’an Shaanxi 710043,China)

机构地区：[1]中铁第一勘察设计院集团有限公司,陕西西安710043

出　　处：《山西建筑》2025年第10期54-57,共4页Shanxi Architecture

摘　　要：针对传统回填材料导致高填大跨波纹钢板结构应力超限的问题,提出以泡沫轻质土替代的优化方案,并做了有限元分析对比,结果表明:泡沫轻质土凭借轻质与高模量特性,显著降低波纹钢板最大应力,改善应力分布,且对填土高度变化适应性更强,为同类结构轻量化设计与承载力提升提供了参考。To address stress overload in high-fill large-span Corrugated Steel Plate(CSP) structures with traditional backfill,this study proposes using Foam Lightweight Soil(FLS) as an optimized alternative.Finite element analysis reveals that FLS,with its lightweight and high modulus,reduces the maximum stress of CSP,improves stress distribution,and enhances adaptability to fill height variations.This research offers insights for lightweight design and bearing capacity enhancement of similar structures.

关 键 词：泡沫轻质土 高填方 大跨度波纹钢板结构 

分 类 号：TU392.4[建筑科学—结构工程]