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基桩动测解析解在浅部缺陷桩测试曲线分析中的应用

Application of the analytical solution of piles under dynamic testing to analysis of test curves of piles with defects in the upper part

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【作者】 李国方卢勤海贾晖郑永龙马骥

【Author】 LI Guo-fang~1,LU Qin-hai~2,JIA Hui~1,ZHENG Yong-long~1,MA Ji~1(1.Wuhu City Jianke Building Engineering Consulting and Testing Co.,Ltd.,Wuhu 241000,China;2.Department of Equipment and Laboratory Affairs,Hefei University of Technology,Hefei 230009,China)

【机构】 芜湖市建科工程技术咨询检测有限责任公司合肥工业大学设备实验室处芜湖市建科工程技术咨询检测有限责任公司 安徽芜湖241000安徽合肥230009安徽芜湖241000

【摘要】 文章介绍了基桩低应变动测正演问题的数理模型及计算方法,并据此计算了桩身浅部缩颈、断裂时低应变动测时域和频域理论曲线,提出了判断桩身浅部缩颈、断裂的方法,对浅部缺陷桩的动测曲线进行分析和判断,证实了这种方法行之有效。

【Abstract】 The mathematical and physical models and calculation method of a pile under low strain dynamic testing are briefly introduced.Then the time domain and frequency domain theoretical curves of the longitudinal vibration velocity of the pile head are calculated when there appears necking or fracture in the upper part of the pile.A method for determining the necking or fracture is presented.The practical dynamic test curves of two piles with defects in the upper part are analyzed and the defects are judged with the presented method,which proves that the method is effective in practice.

  • 【文献出处】 合肥工业大学学报(自然科学版) ,Journal of Hefei University of Technology(Natural Science) , 编辑部邮箱 ,2006年05期
  • 【分类号】TU473.16
  • 【被引频次】3
  • 【下载频次】72
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