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土质边坡的物理力学指标较低,边坡稳定性差,开挖施工过程中风险较大,开挖土方过程中非常容易产生边坡失稳,开挖边坡加固防护造价往往较高,设计阶段须进行方案比选论证才能得出较优的设计方案,本文通过介绍某高速公路K104+700~K104+820段右侧土质高边坡的地质条件,分别采用坡脚挡墙+预应力锚索框架以及预应力锚索桩板墙两种加固方案进行综合比选,最终推荐采用预应力锚索桩板墙处理方案。通过分析该边坡的比选过程,为该类型边坡的处治提供借鉴。
The physical and mechanical indexes of soil slope are low, the stability of slope is poor, and the risk in excavation process is large. It is very easy to produce slope instability in excavation earthwork. The cost of reinforcement and protection of excavation slope is often high. During the design stage We must carry on the comparison and demonstration of the scheme to get the better design plan.This paper introduces the geological conditions of the high soil slope on the right side of K104 + 700 ~ K104 + 820 section of a highway, using the slope foot retaining wall + prestressed anchor cable Frame and prestressed anchorage pile wall reinforcement plan comprehensive comparison and selection, and ultimately recommended prestressed anchor sheet pile wall treatment program. By analyzing the process of slope selection, it provides reference for the treatment of this type of slope.