基于位移反分析法的斜拉桥滑坡成因机制及稳定性分析  

Cause Mechanism and Stability Analysis of Cable-stayed Bridge Landslide Based on Displacement Back Analysis Method

作　　者：胥中锐 朱奕文 Xu Zhongrui;Zhu Yiwen(China Three Gorges University,School of Civil and Architectural Engineering,Yichang 443002,China)

机构地区：[1]三峡大学土木与建筑学院

出　　处：《科技通报》2019年第11期157-161,共5页Bulletin of Science and Technology

摘　　要：传统的斜拉桥滑坡成因机制及稳定性分析方法斜拉桥数据关系模糊,导致分析准确度较差、数据集成度低的缺陷,为了解决上述问题,引入位移反分析法对斜拉桥滑坡成因机制及稳定性分析方法进行研究。根据斜拉桥的建设环境,对斜拉桥滑坡的成因机制进行分析,以此为基础,根据实际情况构建斜拉桥模型,以模型为工具采用位移反分析法对斜拉桥受力情况进行分析,通过勾股定理搭建斜拉桥数据关系,以搭建的斜拉桥数据关系为依据,基于极限平衡法计算斜拉桥滑坡稳定性系数,实现了斜拉桥滑坡成因机制及稳定性的分析。通过实验得到,与传统的斜拉桥滑坡成因机制及稳定性分析方法相比较,提出的斜拉桥滑坡成因机制及稳定性分析方法极大的提升了分析准确度与数据集成度,充分说明提出的斜拉桥滑坡成因机制及稳定性分析方法具备更好的分析效果。In order to solve the above problems,the displacement back analysis method is introduced to study the cause mechanism and stability analysis method of cable-stayed bridge landslide.According to the construction environment of cable-stayed bridges,the causes of landslides are analyzed.Based on this,the model of cable-stayed bridges is constructed according to the actual situation.With the model as a tool,the force of cable-stayed bridges is analyzed by displacement back analysis method.The data relationship of cable-stayed bridges is built by Pythagorean Theorem.The data relationship of cable-stayed bridges is based on the data relationship of the built cable-stayed bridges and the ultimate level.The stability coefficient of the cable-stayed bridge landslide is calculated by the balance method,and the cause mechanism and stability of the landslide of the cable-stayed bridge are analyzed.The experimental results show that compared with the traditional cable-stayed bridge landslide genesis mechanism and stability analysis method,the proposed cable-stayed bridge landslide genesis mechanism and stability analysis method greatly improves the analysis accuracy and data integration,fully demonstrating that the proposed cable-stayed bridge landslide genesis mechanism and stability analysis method has better analysis effect.

关 键 词：位移反分析法 斜拉桥 滑坡 成因机制 稳定性 

分 类 号：TU57[建筑科学—建筑技术科学]