锦屏一级电站尾水调压室大角度上仰孔锚索施工 |
投稿时间:2008-07-14 点此下载全文 |
引用本文:黄辉.锦屏一级电站尾水调压室大角度上仰孔锚索施工[J].钻探工程,2009,36(2):55-58.HUANG Hui. Construction of Anchor Cable with Large-angle Upward Hole in Tailrace Surge Tank of JinpingI Hydropower Station[J]. Drilling Engineering, 2009,36(2):55-58. |
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中文摘要:锦屏一级水电站地下厂房尾水调压室顶拱发育有f14、f18断层及煌斑岩脉,开挖后出露断层及其影响带岩体破碎,风化强烈,围岩不稳定,为了洞室稳定及施工安全,设计采用预应力锚索进行加强支护。介绍了尾水调压室大角度上仰孔锚索的施工方法。 |
中文关键词:大角度上仰孔 预应力锚索 施工方法 尾水调压室 锦屏一级电站 |
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Construction of Anchor Cable with Large-angle Upward Hole in Tailrace Surge Tank of JinpingI Hydropower Station |
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Abstract:f14, f18 fault and lamprophyre veins are developed in the top arch of tailrace surge tank in underground powerhouse of Jinping I hydropower station, the fault and the influence line was exposed after excavation with broken rock, strong weathering and instable surrounding rock. Pre-stressed anchor cable was designed to strengthen the support for cavity stability and construction safety. The papermainly introduced the construction method for anchor cable with large-angle upward hole in tailrace surge tank. |
keywords:large-angle upward hole pre-stressed anchor cable construction method tailrace surge tank JinpingI hydropower station |
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