三峡工程双线五级船闸高边坡预应力锚索监测成果分析
Large Dam and Safety（2004）
Abstract
本文对三峡工程双线五级船闸高边坡锚索测力计监测资料进行了分析.分析认为,锚索预应力变化总体上分为速损期、波动期和平稳期三个阶段,实测锚索预应力受温度、锚索外锚固段灌浆、降雨、锚索孔造孔质量、锚墩垫板情况和开挖等因素影响.目前高边坡锚固力平均损失率为-12.6%,直立坡锚固力平均损失率为-10.4%,变化不大.分析结果表明预应力锚索在加固高边坡稳定性方面作用显著,高边坡处于稳定状态.
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Key words
cable,pre-stressed
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