| 钻孔灌注桩后压浆提高承载力的机理及计算 |
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| 引用本文： | 李树荣,王树中.钻孔灌注桩后压浆提高承载力的机理及计算[J].山西建筑,2002,28(4):34-35. |
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| 作者姓名： | 李树荣 王树中 |
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| 作者单位： | 1. 山西省勘察设计研究院,山西太原,030013
2. 晋城市建筑设计院,山西晋城,048000 |
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| 摘 要： | 钻孔灌注桩承载力取决于桩体几何尺寸，侧阻力及端阻力，分析了影响钻孔灌注桩承载力充分发挥的因素：沉渣，泥皮厚度及孔壁形状等。说明了后压浆技术在钻孔灌注桩施工中提高单桩承载力的机理，并引入侧阻力影响系数及端阻力影响系数，提出了后压浆钻孔灌注桩单桩承载力的计算方法。
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| 关 键 词： | 钻孔灌注桩 后压浆 单桩 承载力 侧阻力 端阻力 影响系数 |
| 文章编号： | 1009-6825(2002)04-0034-02 |
| 修稿时间： | 2002年1月20日 |
The principle and calculation of post grouting to enhance bearing capability of cast-in-place bored piles |
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| LI Shu rong ,WANG Shu zhong.The principle and calculation of post grouting to enhance bearing capability of cast-in-place bored piles[J].Shanxi Architecture,2002,28(4):34-35. |
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| Authors: | LI Shu rong WANG Shu zhong |
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| Affiliation: | LI Shu rong 1,WANG Shu zhong 2 |
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| Abstract: | The bearing capability of cast in place bored piles is determined by the size of the pile, side resistance and end resistance. Through the analysis on the elements influencing the bearing capability such as settlement, mud thick and shape of hole wall the mechanics adopting post grouting technology to enhancing bearing capability of single pile are elaborated and the side resistance coefficient and end resistance coefficient are introduced. At last the calculation method for single pile bearing capability of post grouting cast in place bored piles is put forward. |
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| Keywords: | post grouting bearing capability of single pile side resistance coefficient end resistance coefficient |
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