水电站引水发电洞进水口边坡锚索预应力损失分析

Analysis of Prestress Loss of Anchor Cable in Intake Slope of Water Diversion and Power Generation Tunnel of Hydropower Station

贵州省遵义市绥阳县朱老村水电站引水发电洞进水口边坡采用预应力锚索加固,为进行锚索预应力损失分析,设置了锚索测力计进行监测,并对锚索预应力随时间的变动趋势进行了量化分析,通过分析预应力损失发生的主要原因,为边坡锚索加固质量的提升提供借鉴参考。

The water diversion and power generation tunnel inlet slope of Zhulao Village Hydropower Station in Suiyang County,Zunyi City,Guizhou Province,is reinforced with pre-stressed anchors.In order to analyze the prestress loss of the anchor cables,an anchor cable dynamometer is set up for monitoring,the variation trend of pre-stress with time is analyzed quantitatively.By analyzing the main causes of pre-stress loss,it provides reference for improving the quality of slope anchor reinforcement.