| 柱锤夯实扩底灌注桩承载机理及单桩承载力研究 |
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| 引用本文： | 王恩远,吴迈,杨彬. 柱锤夯实扩底灌注桩承载机理及单桩承载力研究[J]. 工业建筑, 2012, 0(9): 103-106 |
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| 作者姓名： | 王恩远 吴迈 杨彬 |
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| 作者单位： | 河北工业大学土木工程学院;沧州市机械施工有限公司; |
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| 摘 要： | 混凝土扩底灌注桩是JGJ 94—2008《建筑桩基技术规范》推荐使用的桩基型式,柱锤夯实扩底灌注桩是混凝土扩底灌注桩技术的新发展。与现有扩底桩技术相比,柱锤夯实扩底灌注桩具有施工简便、承载力提高幅度大的优点。其承载力提高主要来源于以下两个方面:一是通过夯填干硬混凝土形成夯扩体,二是通过桩底填料夯实挤密桩端持力层。通过对柱锤夯实扩底灌注桩的承载机理进行研究,提出柱锤夯实扩底灌注桩单桩承载力计算公式,可供工程设计参考应用。
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| 关 键 词： | 柱锤夯实扩底灌注桩 承载机理 单桩承载力 |
BEARING MECHANISM AND CAPACITY OF PEDESTAL BORED PILE COMPACTED COLUMN-HAMMER |
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| Abstract: | Pedestal concrete pile is by Technical Code of Building Pile Foundation.(JGJ 94—2008),which is a new development of concrete pedestal pile technology.This new kind of pile has the advantage of higher bearing capacity and simpler driving procedure.The higher bearing capacity derives mainly from two aspects:one is the rammed dry concrete base and the other is the compacted end bearing stratum by fillers.The bearing mechanism of this pile was expounded and practical formula of calculating bearing capacity of single pile was proposed. |
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| Keywords: | pedestal pile compacted by column-hammer bearing mechanism bearing capacity of single pile |
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