| 旋挖钻机施工钻孔灌注桩的工艺研究 |
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| 引用本文： | 李林. 旋挖钻机施工钻孔灌注桩的工艺研究[J]. 中国工程科学, 2010, 12(4): 33-36 |
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| 作者姓名： | 李林 |
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| 作者单位： | 1. 江苏省长江公路大桥建设指挥部,江苏,泰州,225321
2. 中铁大桥局集团第二工程有限公司,南京,210015 |
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| 摘 要： | 泰州大桥夹江左汊桥主跨采用87.5m+3×125m+87.5m的五跨连续梁桥,水中主墩基础采用2.0m桩径的钻孔灌注桩,最大设计桩长为94m,采用旋挖钻机施工。文章结合泰州大桥的施工实例,阐述了旋挖钻机成孔的工艺原理,按照工艺流程,重点叙述了泥浆配置、安装钻孔、钻机钻进等工艺,并重点总结了旋挖钻机施工钻孔桩的施工特点,为今后类似工程施工提供了借鉴。
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| 关 键 词： | 旋挖钻机 施工 钻孔灌注桩 工艺 特点 |
| 收稿时间： | 2010-01-04 |
| 修稿时间： | 2010-02-04 |
Study on the technology of rotary drilling rig used for bored piles |
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| Li Lin. Study on the technology of rotary drilling rig used for bored piles[J]. Engineering Science, 2010, 12(4): 33-36 |
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| Authors: | Li Lin |
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| Affiliation: | Jiangsu Provincial Yangtze River Highway Bridge Construction Commanding Department, Taizhou, Jiangsu 225321, China |
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| Abstract: | The left branch bridge of Yangtze River's branching channel in Taizhou Bridge project is a 5-span continuous beam bridge with the layout of 87.5m +3 × 125 m + 87.5 m. The diameter of bored piles is 2.0 m, and the length is 94 m. All the piles are constructed by rotary drilling rig. Based on the construction of the bridge, the paper analyses the construction techniques of rotary drilling rig, details the drilling mud, drilling rig's installation, drilling, and summarizes the features and experience, proposing reference for similar project in the fu-ture. |
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| Keywords: | rotary drilling rig construction bored pile technology feature |
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