| 桩底压密灌浆提高钻孔灌注桩承载力 |
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| 引用本文： | 王旭,于志强. 桩底压密灌浆提高钻孔灌注桩承载力[J]. 建筑结构, 1998, 0(11) |
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| 作者姓名： | 王旭 于志强 |
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| 作者单位： | 西南交通大学地下与岩土工程系 成都610031(王旭)，西南交通大学地下与岩土工程系 成都610031(于志强) |
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| 摘 要： | 对压密灌浆法用于桩底灌浆提高钻孔灌注桩承载力的工艺和机理进行了探讨.分析了压密灌浆和普通灌浆的异同以及桩底压密灌浆钻孔桩的承载力特性,并给出了桩端持力层为粗颗粒土的压密灌浆钻孔桩的极限承载力经验公式.
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| 关 键 词： | 压密灌浆 钻孔灌注桩 承载力 |
Using Base Compaction Grouting to Enhance Bearing Capacity of Bored Pile |
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| Wang Xu Yu Zhiqiang. Using Base Compaction Grouting to Enhance Bearing Capacity of Bored Pile[J]. Building Structure, 1998, 0(11) |
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| Authors: | Wang Xu Yu Zhiqiang |
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| Affiliation: | Wang Xu Yu Zhiqiang |
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| Abstract: | Technology and mechanism of compaction grouting used in bored pile base grouting to enhance the bearing capacity are discussed. By comparison, the authors pointed out the difference between compaction grouting and common grouting method used in bored pile base grouting. The feature of bored pile with compact toe is discussed and empirical formula of ultimate bearing capacity of bored pile when its toe is in coarse grained soil is proposed. |
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| Keywords: | compaction grouting bored filling pile bearing capacity |
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