[1]杜思义,陈一汉..基桩低应变波速的量值研究[J].郑州大学学报(工学版),2012,33(03):24-27.[doi:10.3969/j.issn.1671-6833.2012.03.006]
　DU Siyi,CHEN Yihan.Study on Quantity of Wave Speed in Low Strain IntegretyTesting of Foundation Pile[J].Journal of Zhengzhou University (Engineering Science),2012,33(03):24-27.[doi:10.3969/j.issn.1671-6833.2012.03.006]
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基桩低应变波速的量值研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
33
期数:
2012年03期
页码:
24-27
栏目:
出版日期:
2012-05-10

文章信息/Info

Title:
Study on Quantity of Wave Speed in Low Strain IntegretyTesting of Foundation Pile
作者:
杜思义; 陈一汉.
郑州大学 土木工程学院,河南郑州,450001, 郑州大学 土木工程学院,河南郑州,450001
Author(s):
DU Siyi; CHEN Yihan
chool of Civil Engineering,2hengzhou University,Zhengzhou 450001,China
关键词:
基桩;  低应变测试;  应力波波速;  桩身完整性
Keywords:
foundation pile;  low strain integrety testing;  stress wave speed;  pile integrity
分类号:
TU198+.6
DOI:
10.3969/j.issn.1671-6833.2012.03.006
摘要:
在应力波反射法测试基桩完整性的过程中,应力波波速是确定桩长和桩身缺陷位置的必要条件,而应力波波速受多种因素影响很难准确定量,这已成为基桩测试技术发展的瓶颈.根据应力波传播的基本原理,结合试验研究,分析了应力波在基桩中传播速度的影响因素,得出了应力波传播波速与混凝土龄期和混凝土强度等影响因素之间的量值关系,并结合工程实际提出了5种确定低应变波速的简便实用方法,以便检测人员更好地控制桩基工程质量.
Abstract:
The stress wave speed is the necessary condition to make sure pile length and pile defects positionin low strain integrety testing of foundation pile with the stress wave echo method. Quantilying the stress wavespeed is very dificult, because it is affected by multi-factors. This has been the boleneck in point for develo.ping test technology of foundation pile, In this paper, some factors affecting the stress wave speed were ana-lyzed according to stress wave theroy and experiment results, the quantity relalionships of the stress wave speedin pile and time and concrete age were determined. lastly, five brief methods to quantifying the siress wavespeed in pile were presented to control pile quality for test engineers according engineering practice.

相似文献/References:

[1]杜思义,宋世波..基桩缺陷定量识别研究[J].郑州大学学报(工学版),2012,33(05):34.[doi:10.3969/j.issn.1671-6833.2012.05.008]
　DU Siyi,SONG Shibo.Research on Quantitative Analysis Foundation Pile Defects[J].Journal of Zhengzhou University (Engineering Science),2012,33(03):34.[doi:10.3969/j.issn.1671-6833.2012.05.008]

更新日期/Last Update: 1900-01-01