| 人工挖孔桩遇高水位、淤泥、流砂及无法嵌岩施工实例 |
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| 引用本文： | 李衡艳.人工挖孔桩遇高水位、淤泥、流砂及无法嵌岩施工实例[J].建筑技术开发,2000(3). |
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| 作者姓名： | 李衡艳 |
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| 作者单位： | 湖南省衡阳建校 |
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| 摘 要： | 本文针对河漫滩地特有的高水位、流砂等复杂地质情况 ,结合人工挖孔灌注桩桩基础施工实例 ,介绍利用先开挖桩孔作井点 ,应用井点降水原理降低地下水位后 ,用常规施工方法穿过流砂层 ;用钢护筒或砖沉井穿过淤泥层 ;桩尖无法嵌入坚硬岩层时 ,桩身承载力的确定等实用技术经验
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| 关 键 词： | 先开挖桩孔作降水井点 常规施工方法穿过流砂层 钢护筒护壁 砖沉井护壁 摩擦端承桩 |
CONSTRUCTION CASES OF MANPOWER EXCAVATED PILE ENCOUNTERING HIGH-WATER LEVEL,MUD,QUICK-SAND AND UNABLE TO EMBED THE ROCK |
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| LI Heng\|yan.CONSTRUCTION CASES OF MANPOWER EXCAVATED PILE ENCOUNTERING HIGH-WATER LEVEL,MUD,QUICK-SAND AND UNABLE TO EMBED THE ROCK[J].Building Technique Development,2000(3). |
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| Authors: | LI Heng\|yan |
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| Affiliation: | Building Construction School of Hengyang |
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| Abstract: | To deal with the complex geologic cases of variational water level and quick\|sand particularly in the floodplain,this paper introduces some utilized technological experiences combined with the practical construction of manpower excavated packing concrete pile foundation,including to reduce the underground water level by the well\|point method and tranversing the quick\|sand stratum with the normal method of construction using the excavated pile hole as the well\|point;to tranversing the mud with the steel tube guard or the brick sink well;To determine the loading capacity of pile when it's unable for the pile point to embed the firm rock. \ |
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| Keywords: | Using the excavated pile hold as the well\|point Tranversing the quick\|sand stratum with the normal method of construction Steel tube guard shoring Brick/sink well shoring Frictional end\|bearing pile |
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