期刊论文

Analysis and Monitoring of Combined Support by Pile Anchor and Cantilever Retaining Wall in High Embankment Slope

中文

南华大学学报(自然科学版)

1673-0062

2017

31

4

6-11

10.19431/j.cnki.1673-0062.2017.04.003

国家自然科学基金项目（50974076）；

本校为第一机构

目前在实际工程设计中组合结构应用越来越广泛,但协调作用理论和受力特性尚未完善.为了系统研究桩锚与悬臂式挡墙联合支护结构受力特性,采用有限元方法与监测手段结合,建立三种分析模型.分析表明:单独悬臂挡墙设计模型立面板弯矩稍低于联合设计模型,变化幅度小且变化规律基本一致;单独悬臂挡墙模型底板弯矩高于联合设计模型,底板配筋量将远大于实际需要配筋量,造成材料浪费;与联合设计模型相比,单独桩锚设计会使桩身变形计算偏于危险,不利于桩锚支护结构安全,锚杆锚固段轴向拉力大于联合设计模型锚杆轴向力;与监测结果相比,单独悬臂挡墙设计模型坡顶的水平位移偏高,低估了坡顶沉降.本研究所得结...

At present,the composite structure is being more and more widely used in practical engineering design,however,the theory of coordination function and the characteristic of force have not been perfect.In order to systematically study the mechanical characteristics of structure of pile anchor and hanging combined cantilever retaining wall,three analytical models were established by combining finite element method with monitoring method.Analysis show that the bending moment of the vertical panel of cantilever retaining wall mod-el is slightly lower than that of the joint design model,the range of...