边坡加固机理探讨

笔根据参与的十几个岩土边坡加固设计,审查和施工体验对边坡加固中预应力锚索传力深度,自由段概念,削坡开挖边坡安全系数,群锚形成“岩壳”,补赏张拉等问题进行了讨论。中介绍了边坡治理中开挖控制变形工法。工法的主要素为：安全监测,超前支护,分层分段开挖,及时进行坡面支护,加强边坡底部支护和施工工艺管理。中着重讨论了预应力锚索钻孔中水泥砂浆芯柱受力分析,把问题归结为压杆稳定提出了预应力锚梁结构。该结构大大提高了预应力锚索的承载力。

Study on reinforcement mechanism of slope

Based on the design, review and construction experience of more than a dozen geotechnical slope reinforcement, the author discusses the depth of force transfer of prestressed anchor cable, the concept of free section, the safety factor of slope cutting and excavation, the formation of "rock shell" by group anchors, and the reinforcement of tension. This paper introduces the excavation control deformation construction method in slope treatment. The main elements of the construction method are: safety monitoring, advance support, stratified excavation, timely slope support, strengthening slope bottom support and construction technology management. This paper mainly discusses the stress analysis of cement mortar core column in the drilling of prestressed anchor cable, and puts forward the prestressed anchor beam structure by attributing the problem to the stability of the compression rod. The structure greatly improves the bearing capacity of the prestressed anchor cable.