预应力锚索框架设计方法及应用

以陕西某高速公路路堑边坡预加固工程为依托，基于预应力锚索结合框架普遍适用于边坡的加固，分别对锚索和框架进行了设计计算。锚索的设计根据设计荷载、加固位置、锚固角、锚索间距等基本数据，设计锚索锚固力、截面积及锚索长度；框架的设计基于锚索设计锚固力，采用基于Winkler地基模型的弹性地基梁法或简化的倒梁法计算框架内力，根据内力计算结果进行配筋设计。

Design Method and Application of Prestressed Anchor Cable Framework

Relying on the pre-reinforcement project of cutting slope along a highway in Shaanxi, prestressed anchor cable with framework is applicable to reinforce the slope generally. Herein the anchor cable and the framework were designed and calculated respectively in such manner that, for the design of the cable, the anchoring force, cross-sectional area and length were laid out according to the design load, reinforcement position, anchoring angle, cable spacing and other basic data; and for the design of the framework, the anchoring force was laid out on account of the cable, then the internal force of the framework was calculated by elastic foundation beam method based on Winkler foundation model or simplified inverted beam method, and then the reinforcement was laid out according to the calculation result of the internal force.