| 深基坑围护预应力锚索施工技术 |
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| 引用本文： | 杨金友.深基坑围护预应力锚索施工技术[J].铁道建筑技术,2012(3):92-95. |
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| 作者姓名： | 杨金友 |
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| 作者单位： | 中国铁建二十二局集团第一工程有限公司 |
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| 摘 要： | 北京地铁14号线郭庄子站至大井站区间风井兼轨排井明挖深基坑,最大开挖深度25.5 m,地质复杂,地层自上而下为人工堆积,砂层,卵石层,漂石层,基坑采用全套筒跟进钻孔锚索外支撑支护形式。锚索施工是支护施工的关键,从钻孔注浆,锚索制作安装张拉等方面进行介绍。
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| 关 键 词： | 预应力锚索 深基坑 支护施工 |
Prestressed Anchor Cable Construction Technology on Supporting for Deep Foundation Pit |
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| Yang Jinyou.Prestressed Anchor Cable Construction Technology on Supporting for Deep Foundation Pit[J].Railway Construction Technology,2012(3):92-95. |
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| Authors: | Yang Jinyou |
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| Institution: | Yang Jinyou(China Railway 22th Bureau Group Co.Ltd.,Beijing 100040,China) |
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| Abstract: | The form of sleeve hole to follow up anchor and supporting is explicating in the open-cut deep foundation pit section of Guozhuangzi to Dajing of Line 14 for Beijing Subway with a maximum excavation of 25.5m characterized by complex geology with formation of top-down for artificial pile,sand,gravel layer,boulder layer.This paper introduces the key anchor cable construction including drilling and grouting,cable production installation tensioning etc. |
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| Keywords: | prestressed anchor cable construction deep foundation pit |
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