路堑边坡预应力锚索框架梁底地基反力现场测试研究  

Field Test and Study on Subgrade Reaction under Frame Beam of Prestressed Anchor Cable for Cutting Slope

作　　者：钟长云 

机构地区：[1]广东省冶金建筑设计研究院,广州510070

出　　处：《路基工程》2012年第4期82-85,共4页Subgrade Engineering

摘　　要：结合梅河高速公路路堑边坡的预应力锚索框架梁试验工点,分别对预应力锚索框架梁土质边坡和岩质边坡的地基反力进行了现场测试研究。通过计算和测试分析对比,得出了梁底反力沿梁长的分布规律,其在一定锚固预应力作用下,对于土质边坡,梁底反力沿梁长呈现接近"马鞍形"分布,对于岩质边坡,梁底反力沿梁长更接近于"抛物线"分布。Combined with the test point on the frame beam of prestressed anchor cable for the cutting slope along Meihe Highway, the subgrade reactions under this frame beam at soil and rock slopes are tested in the field and studied. Through calculation and comparison, the distribution law of the reaction under beam along the beam length is obtained, which, under the action of certain anchoring prestress, presents ＂saddle＂ like distribution in case of soil slope, and more like ＂parabola＂ in case of rock slope.

关 键 词：预应力锚索 框架梁 地基反力 现场测试 

分 类 号：R416.14[医药卫生—临床医学]