摘要
针对居甫渡电站的实际情况,通过对传统混凝土坝正垂孔成孔方式的对比和总结,决定采用预埋双层PVC波纹管和激光垂准仪定位的正垂孔成孔方法。介绍了该方法的施工要点。该方法具有安装简单、方便、快捷、精准、可动态检查偏移量(用激光垂准仪定位)等优点。
The vertical hole drilling method of using pre - embedded double layer PVC corrugated pipes and a laser collimator for hole positioning has been adopted after comparison with the traditional methods of drilling vertical holes in a concrete dam and summing up of the experience based on the actual condition of Jufudu Hydropower Project. This paper gives an introduction to the method. The method is characterized by such advantages as erection is simple, easy, quick and accurate and displacement can be inspected in a dynamic way by using a laser collimator.
出处
《云南水力发电》
2009年第4期87-88,共2页
Yunnan Water Power
关键词
居甫渡水电站
正垂孔
预埋管
成孔方法
Jufudu Hydropower Plant
vertical hole
embedded pipes
method of drilling holes
