嘉陵江草街航电枢纽冲沙闸工程预应力锚索施工

摘要

The pre-stressing anchor cable is concrete linear type and the steel strand is unbounded in Jialing River Caojie navigation-power junction desilting sluice project. This work will be carried out with post tension method that first tightening the steel strands in signal piece and then tension the bunch-strands. The main anchor cable consists of 45 pieces of steel strands which are the thickest bunch in hydraulic and hydroelectric construction at present, the weight is 75 kg. We introduced the whole construction process, and the analysis and treatment on common issues in construction, which can provide references for similar projects.%嘉陵江草街航电枢纽冲沙闸工程预应力锚索为混凝土直线型锚索，钢绞线为无粘结钢绞线，采用后张法施工，单根预紧整束张拉。主锚索由45根钢绞线组成，是目前水利水电施工中最粗的钢绞线束，锚具重量达75 kg。文章论述了整个施工实践过程及对施工中常见问题的分析和处理方法，可为类似工程参考。