中美法加筋土挡墙规范对比分析

Comparison and Analysis of Reinforced Earth Retaining Wall Specifications in China,USA and France

加筋土挡墙具有施工速度快、适应变形能力强和造价低的优势,在交通、水利等行业得到越来越多的应用,但是相关规范要求与国外有一定的距离。文章从设计思路、计算方法、构造规定等多方面,对我国《公路加筋土工程设计规范》与美国《加筋边坡和挡土墙设计建造指南(卷Ⅰ)》、法国《加筋土工程设计规范》进行了介绍,并结合实例工程进行了对比计算,分析了三个规范在计算设计方法上的异同和优缺点,为我国《公路加筋土工程设计规范》的修订提供参考。

Reinforced earth retaining wall has the advantages of fast construction,strong adaptability to deformation and low cost,thus it has been applied more and more in transportation and water conservancy industries,but the relevant specification requirements have a certain distance from abroad.From the aspects of design ideas,calculation methods and structure regulations,this article introduced China’s＂Highway Reinforced Earthwork Design Code＂,USA’s＂Guidelines for Design and Construction of Reinforced Slope and Retaining Wall（ Volume Ⅰ） ＂,and France’s＂Reinforced Earthwork Engineering Design Code＂,and conducted the comparative calculation in combination with the example project,then analyzed the similarities and differences as well as the advantages and disadvantages of these three specifications in terms of calculation design method,which can provide references for the revision of China’s＂Highway Reinforced Earthwork Design Code＂.