基于欧标的泥灰岩地区支挡设计与计算研究

Design and Calculation Research on Retaining Structure in Marlite Area Based on European Standard

在“一带一路”倡议的大背景下,中国企业在“走出去”过程中遇到的各种国际标准的实施项目逐年增加.欧标作为国际主流标准之一,其完整的理论体系及严谨的推理逻辑值得中国企业学习及借鉴.本文以阿尔及利亚55 km欧标铁路项目PK122+604两侧边坡为研究对象,在广泛分布的地泥灰岩地区中,通过采用悬臂式挡土墙建立工程计算模型、选取荷载组合类型,对悬臂式挡土墙的承载力、抗倾覆、抗滑移等力学指标进行验证及分析并得出不同极限荷载模型下的计算结论.研究结果表明,该悬臂式挡土墙在基于欧标理论体系的计算验证下能够满足工程设计要求.本文从欧标规范的引用到设计的应用,介绍了基于欧标体系下的支挡设计思路及流程,为中国企业在实施国际标准特别是欧洲标准项目的支挡设计提供一定的借鉴.

Under the background of"the Belt and Hoad Initiatives",the Chinese enterprises encountered more and more various international standards implementation projects in the process of“go globally”.Ruropean standard,as one of the mainstream international standards,its complete theoretical system and rigorous reasoning logic were worthy of study and reference by Chinese enterprises.In this paper,PK122+604 side slopes of 55km European standard railway project in Algeria was taken as the research object.In this widely distributed marlite area,the engineering calculation model was established by using cantilever retaining wall and different load combination types were selected.Mechanical indexes such as bearing capacity,anti-overturning and anti-sliding were used for different ultimate verifying and analyzing.The results showed that the cantilever retaining wall could meet the engineering design requirements under the calculation based on European standard theory system.From the reference of European standard specification to the application of design,this paper introduced the design idea and process of retaining engineering based on the European standard system,which could provide some reference for Chinese enterprises to implement the retaining design projects based on international standards,especially the European standard projects.