加筋土挡墙结构在变电站深填方边坡支护方案中的应用

Application of Reinforced Earth Retaining Wall in Deep-fill Slope Support

自1965年法国工程师Vidal提出现代加筋土概念后,加筋土技术以其独特的技术优势和显著的经济效益,已广泛应用于公(铁)路路基、边坡、挡土墙等工程,本文通过云南怒江某220kV变电站工程介绍加筋土挡墙结构在深填方边坡支护方案中的应用。加筋土挡墙是由墙面板、土工格栅、填土、地基等附属结构组成、各部分相互作用的综合受力体,通过共同作用,发挥挡土结构各材料的优势,改善了的结构整体性能。文中结合工程采用ANSYS有限元软件模拟加筋土挡墙,应用代表断面对挡土墙结构进行稳定性分析和加筋土挡墙的设计计算,完成了加筋土挡墙设计,并总结了填方边坡采用加筋土挡墙不同高度造价比较。

Concept of reinforced earth, proposed by French engineer Vidal 1965, has been widely applied in construction of subgrade, slope and retaining wall because its advanced technology and economic benefit. Reinforced earth retaining wall in deep-fill slope support is used in a 220 kV substation construction located in Nujiang River, Yuanan Province. Reinforced earth retaining wall is a forced integration consisting of wall board, geotechnical grille, filling and foundation. Structure performance is improved by taking advantage of materials. The paper simulates reinforced earth retaining wall by ANSYS finite element software and analyzes stability and design calculation of the retaining wall. Then comparison of different high wall cost is presented.