| 钻孔灌注桩后压浆作用机理分析 |
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| 引用本文： | 张阳明,管典志. 钻孔灌注桩后压浆作用机理分析[J]. 哈尔滨建筑大学学报, 2003, 0(7) |
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| 作者姓名： | 张阳明 管典志 |
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| 作者单位： | 中国地质调查局发展研究中心 北京100083(张阳明)，湖北楚鹏基础工程有限公司 湖北孝感432100(管典志) |
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| 摘 要： | 在后压浆施工工艺基础上,从分析降低钻孔灌注桩单桩承载力的因素入手,总结了后压浆浆液的作用机理,研究了后压浆浆液对土体应力和抗剪强度的影响.经实践检验,浆液的作用改善了土体的应力情况,使土体固结,强度增大,压缩性减小,抗剪强度增大,表明后压浆技术是地基处理的有效方法.
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| 关 键 词： | 后压浆 工艺 作用机理 应力 抗剪强度 |
Impacting mechanism of post-grouting |
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| ZHANG Yang-ming .Development and Research Center,China Geological Survey,Beijing ,China,GUAN Dian-zhi .Chupeng Foundation Engineering Ltd.Co.,Xiaogan ,China. Impacting mechanism of post-grouting[J]. Journal of Harbin University of Civil Engineering and Architecture, 2003, 0(7) |
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| Authors: | ZHANG Yang-ming .Development Research Center China Geological Survey Beijing China GUAN Dian-zhi .Chupeng Foundation Engineering Ltd.Co. Xiaogan China |
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| Affiliation: | ZHANG Yang-ming 1.Development and Research Center,China Geological Survey,Beijing 100083,China,GUAN Dian-zhi 2.Chupeng Foundation Engineering Ltd.Co.,Xiaogan 432100,China |
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| Abstract: | Post-grouting is used widely in foundation engineering today.According to the factors reducing bearing capacity of the boring pile,the author analyses the impacting mechanism of grouting.And the author discusses the reinforcing action of the post-grouting from the stress and the shear stability of soil.The research shows the grouting can decrease the effective stress in evidence and improve the strength and the shear stability of soil.Many projects show post-grouting has a favorable economy benefit and society benefit. |
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| Keywords: | post-grouting construction process impacting mechanism stress shear stability |
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