| 后注浆桩技术(5)——后注浆桩的竖向抗压承载力 |
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| 引用本文： | 沈保汉.后注浆桩技术(5)——后注浆桩的竖向抗压承载力[J].工业建筑,2001,31(9):72-75. |
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| 作者姓名： | 沈保汉 |
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| 作者单位： | 北京市建筑工程研究院, |
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| 摘 要： | 提出确定后注浆桩极限承载力的两种方法 :对试验完整的桩采用s lgP法 ;对试验不够完整的桩先用逆斜率法拟合外推 ,而后采用s lgP法。此外还提出按桩顶沉降量确定极限承载力和单桩承载力标准值 ;最后提出用Q Qu-s su法定量地确定后注浆桩的桩侧极限摩阻力和桩端极限阻力。
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| 关 键 词： | 后注浆桩 极限承载力 桩侧摩阻力 桩端阻力 |
| 修稿时间： | 2001年3月28日 |
POST GROUTING PILE TECHNIQUE(5)--THE VERTICAL COMPRESSIVE BEARING CAPACITY OF POST GROUTING PILES |
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| Shen Baohan.POST GROUTING PILE TECHNIQUE(5)--THE VERTICAL COMPRESSIVE BEARING CAPACITY OF POST GROUTING PILES[J].Industrial Construction,2001,31(9):72-75. |
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| Authors: | Shen Baohan |
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| Affiliation: | Beijing Building Construction Research Institute\ Beijing\ 100039 |
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| Abstract: | In this paper two methods for determining the ultimate bearing capacity of post grouting piles are put forward, i.e. the s \|lg P method and the association of the inverse slope method and the s \|lg P method. The ultimate and allowable bearing capacities determining by the pile head settlements are also put forward. Finally the Q/Q u -s/s u method is used to determine quantitatively the ultimate skin friction and the ultimate resistance at pile tip of the post grouting pile. |
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| Keywords: | post grouting pile\ ultimate bearing capacity\ skin friction\ resistance of pile tip |
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