加筋格宾支挡的路基边坡稳定性分析  

Research on Roadbed Side Slope Reinforced by Geogrids and Gabion Retaining Structure

作　　者：杨开业[1] 

机构地区：[1]湖南省交通科学研究院,湖南长沙410015

出　　处：《公路工程》2016年第4期196-201,共6页Highway Engineering

摘　　要：以蓝山湘江源至高塘坪公路段为工程背景,根据构建的格宾及土体格栅的路基边坡主动和被动破坏模式,运用极限分析原理获得了路基边坡挡土墙发生主、被动破坏时土压力的上限解。并以此为基础,揭示了土体强度参数、格栅加固方式等因素对边坡稳定性和主、被动土压力的影响规律。最后,借助数值分析软件对该路段的边坡稳定性进行了数值模拟研究,可为工程路基边坡施工和支护提供借鉴。Active and passive failure models of reinforced roadbed side slopeare contributed based on a highwayproject. Analytic expressions of active and positiveearth pressures for retaining walls are ob- tained by the limit analysis of upper bound theorem. Influence rules of strength parameters of both undis- turbed soil and subgrade fill and reinforcement of geogrids on slope stability are discussed. Then numeri- cal simulation analysis is conducted lastly for theverification of the calculations above, andthe work done by this paper canbe effectively used to guide the specific engineering designs and construction.

关 键 词：道路和边坡工程 加筋格宾 土工格栅 路面荷载 稳定性分析 

分 类 号：U416.14[交通运输工程—道路与铁道工程]