紫湖水库溢洪道高边坡挡墙加固预应力锚索的施工技术简介

Pre-stressed anchor cable construction for reinforcement of spillway high bank slope retaining wall of Zihu Reservoir

紫湖水库溢洪道高边坡石砌挡墙墙背地质复杂,坡面有较多的孤石,且局部石砌挡墙有变形不稳等现象,为确保边坡稳定,采用预应力锚索加固。论述了预应力锚索施工钻孔、护孔、清孔、张拉及质量控制技术。

The spillway high bank slope of Zihu Reservoir was designed with a dry masonry stone retaining wall. Geological condition is complicated at wall back. There were considerable boulders on the slope surface, and there existed unstable positions with deformation. So pre-stressed anchor cable is adopted to reinforce the bank slope. An introduction was made on the construction technique, including boring, bore protection, bore clean- ing, stretching and quality control.