铁路工程装配化重力式生态挡土墙关键技术研究与应用  

Research and Application of Key Technology for Assembled Gravity Ecological Retaining Wall in Railway Engineering

作　　者：李巍[1] LI Wei(China Railway Siyuan Survey and Design Group Co.Ltd.,Wuhan 430063,China)

机构地区：[1]中铁第四勘察设计院集团有限公司,武汉430063

出　　处：《铁道建筑》2025年第1期136-141,共6页Railway Engineering

基　　金：中铁第四勘察设计院集团有限公司基金项目(2019K023)。

摘　　要：针对传统重力式挡土墙采用现浇施工存在施工周期长、受外部环境影响大、可绿化性差、预制化程度低等缺点,依托某铁路工程项目提出了一种装配化重力式生态挡土墙。该挡土墙由钢筋混凝土预制墙体及回填填料组成,钢筋混凝土预制墙体承装压重材料,预制钢筋混凝土墙体和墙体空腔内回填填料组成重力式挡墙共同抵抗墙后土压力。本文采用理论计算、数值模拟分析和工程应用,研究了装配化重力式生态挡土墙的结构设计、受力计算分析、施工流程与技术要求等关键问题,发现:稳定性验算方法与传统重力式挡土墙一致,可采用有限元法进行墙体结构强度、配筋计算以及最大裂缝宽度验算;工程案例表明装配化重力式生态挡土墙结构强度高、质量可靠、回填材料成本低、绿化效果好,可为类似的装配化挡土墙工程的设计和施工提供参考。Considering the disadvantages of the traditional gravity retaining walls,such as long construction cycle due to cast-in-place methods,significant environmental impacts,poor sustainability,and low prefabrication levels,an assembled gravity ecological retaining wall was proposed for a railway project.It consisted of reinforced concrete precast wall and backfill filler.The precast reinforced concrete panels bear the weight of the backfill,and together with the backfill material in the cavities of the wall,they form a gravity retaining structure that collectively resists the earth pressure.This paper adopted theoretical calculations,numerical simulation analysis,and engineering applications to study key issues such as structural design,load calculation and analysis,construction process,and technical requirements for the assembly-type gravity ecological retaining wall.It was found that the stability verification method is consistent with traditional gravity retaining walls,and finite element method can be used the for calculating the structural strength of the wall,reinforcement calculations,and maximum crack width verification.Engineering case studies have shown that the assembly-type gravity ecological retaining wall has high structural strength,reliable quality,low cost of backfill materials,and effective greening results.These studies provide a reference for the design and construction of similar assembly-type retaining wall projects.

关 键 词：铁路路基 装配化 理论计算 数值模拟分析 重力式挡土墙 稳定性 内力 

分 类 号：U213.1[交通运输工程—道路与铁道工程]