预应力锚索框架地梁的互作用变形耦合分析

由于压缩变形的传播效应,预应力锚索框架地梁与边坡各接触点之间存在互作用变形的耦合效应,而现有预应力锚索框架地梁分析方法大多忽略了地梁基底接触点之间的相互影响。从可考虑变形传播效应的弹性半空间地基理论出发,建立预应力锚索框架地梁与边坡岩土体不同接触点之间的互作用变形耦合分析模型,并通过实例对比分析表明,考虑互作用变形耦合效应的分析结果是合理的。

The Analysis for Lattice Beam Tied by Pre-stressed Anchor Ropes Based on the Coupling of Compatible Deformation Between Structure and Slope

There are a series of evident interaction coupling of compatible deformation between the structure and slope because of propagation effect of deformation in soil or rock mass when the reinforcement system, which is compounded by the pre-stressed anchor rope and lattice beam,is employed to strengthen a slope. The coupling effect, however, is neglected in the current procedure of analyzing based on the Winkler＇s spring assumption that is used in the foundation structure design widely. Now, an approach, which can consider the coupling of deformation at the base contact points each other, has been set up on the base of the elastic semi-space foundation theory for lattice beam. It is proved that the newly proposed analysis model is reasonable and practicable by comparing the multifold solutions with the tests.