| 桩身竖向应力测试应用技术研究 |
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| 引用本文： | 梁金国,郅正华.桩身竖向应力测试应用技术研究[J].工程勘察,2007(3). |
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| 作者姓名： | 梁金国 郅正华 |
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| 作者单位： | 河北建设勘察研究院有限公司 石家庄051131 |
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| 摘 要： | 基桩在竖向荷载作用下的受力特征需要桩身实际应力观测资料进行测试验证。基桩横截面多为钢筋与混凝土的复合体,在截面法向应力作用下,根据应力平衡方程,则可得出对应应力平衡条件下的解析解,其中的未知量为测试参数,解析主要目标为桩身摩阻。计算方法因测试参数(力或应变)的不同而有所差别。本文从桩身受力的机理出发,详细研究了桩身竖向应力测试的实用方法,系统阐述了主要的资料整理过程,其中的标定K值法经多项工程实践检验比较有效,可以作为桩身竖向应力测试的解释方法,以供参考。
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| 关 键 词： | 桩身 竖向应力 测试方法 数据处理 |
Practical Technology Research on Stress Test of Pile Body |
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| Liang Jinguo et al..Practical Technology Research on Stress Test of Pile Body[J].Geotechnical Investigation & Surveying,2007(3). |
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| Authors: | Liang Jinguo |
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| Affiliation: | Liang Jinguo et al. |
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| Abstract: | The force characteristics of piles under vertical loading should be verified by real monitored stress data of pile body.The section of pile is mostly made of reinforcement and concrete.Based on the corresponding stress equilibrium equations,the side friction of the pile body can be calculated.The practical method of stress test for pile body is studied in detail in this paper based on the force mechanism of pile body.The data process method,especially the K method is one of the best stress test methods of pile body to explain the related monitored data. |
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| Keywords: | pile body vertical stress testing methods data processing |
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