基于双参数模型的预应力锚索框架内力计算  

Inner Force Calculation of Prestressed Anchor Cable Frame Based on Two-Parameter Model

作　　者：李群[1] 余祥宏[1] 董志勇[1] 

机构地区：[1]中交第二公路勘察设计研究院有限公司,武汉430056

出　　处：《路基工程》2010年第4期126-128,共3页Subgrade Engineering

摘　　要：预应力锚索框架是加固边坡、滑坡常用的方法。目前框架梁的设计方法以Winkler弹性地基梁理论为主,其理论的基本假定与地基土体的实际性质有较大差别,计算结果偏于安全。文内引入Vlazov双参数地基模型,推导了框架梁内力计算公式。两个算例的对比分析表明,利用该法在保证加固效果的同时,可在一定程度上降低工程造价。Prestressed anchor cable frame is the common method for slope and landslide reinforcement.At present,frame beam design is mainly based on the theory of Winkler elastic foundation beam,but the basic assumption of this theory is largely different from the actual nature of foundation soil mass,so the calculation result deviates from safety.This paper introduces Vlazov two-parameter foundation model to educe the formula of inner force of frame beam.Compared to these two results,it is found that the latter method may reduce engineering cost to a certain extent as well as ensure reinforcement effect.

关 键 词：预应力锚索框架 双参数地基模型 边坡加固 WINKLER模型 

分 类 号：U416.14[交通运输工程—道路与铁道工程]