人民长江2015，Vol.46Issue(24)：82-87,6.DOI:10.16232/j.cnki.1001-4179.2015.24.020
三峡船闸高边坡锚索预应力损失监测成果分析
Analysis of monitoring results of pre-stress loss in anchorage cables installed at high slope of ship-lock of Three Gorges Project
摘要
Abstract
In order to understand the long-term performance of the pre-stressed anchorage cables installed in high slope of ship-lock of Three Gorges Project, the statistical analysis on the pre-stress variation process was carried out on the basis of the 15 years'monitoring data from 73 anchorage cables. The magnitude and distribution characteristic of the pre-stress loss at the locking moment and after the locking till December of 2014 are presented. The mode of the sequential curve of pre-stress loss after the locking are divided and the evolution laws under different modes are summarized and compared. The 3-stage pattern is the most representative, namely the abrupt spurt stage, randomly up-down attenuation stage and periodically stable fluctuation stage. The reason and influential factors of pre-stress loss are summarized in terms of different stages. The relationship between the pre-stress loss and the stability of slope is briefly discussed.关键词
预应力损失/锚索/高边坡/三峡船闸Key words
pre-stress loss/anchorage cables/high slope/ship-lock of Three Gorges Project分类
建筑与水利引用本文复制引用
樊少鹏,肖碧,王公彬,闵征辉..三峡船闸高边坡锚索预应力损失监测成果分析[J].人民长江,2015,46(24):82-87,6.基金项目
国家大坝安全工程技术研究中心研究项目"预应力锚索耐久性研究"(CX2014Z02) （CX2014Z02）
