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Design of Pre-stressed Anchor Cable with 1 500 kN for Arch Crown of Underground Power House of Laxiwa Hydropower Station
Author(s): 
Pages: 71-74
Year: Issue:  1
Journal: JOURNAL OF NORTHWEST HYDROELECTRIC POWER

Keyword:  地下厂房预应力锚索设计施工;
Abstract: 为了保证施工期及运行期地下洞室的稳定,根据地质条件在拉西瓦水电站地下厂房顶拱施工中采用了1 500 kN无粘结预应力锚索加固,其主要内容包括预应力锚索的设计、钻孔、锚索制安、灌浆、垫座及外锚头混凝土浇筑、张拉.阐述了大型地下洞室在不良地质下采用预应力锚索加固的必要性和重要性.
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