中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2017, Vol. 36 ›› Issue (1): 14-18.DOI: 10.3969/j.issn.1674-0696.2017.01.03

• 桥梁与隧道工程 • 上一篇    下一篇

桥梁注浆孔道中冲击弹性波波速特征检验研究

魏连雨,王金伟,刘永平,张国盘   

  1. (河北工业大学土木工程学院,天津300401)
  • 收稿日期:2015-10-23 修回日期:2015-11-19 出版日期:2017-01-20 发布日期:2017-02-08
  • 作者简介:第一作者:魏连雨(1957—),男,天津人,教授,主要从事道路与交通工程方面的研究。E-mail: wly57@126.com。

Tests on the Features of Elastic Wave Velocity in Bridge Grouting Tunnel

WEI Lianyu, WANG Jinwei, LIU Yongping, ZHANG Guopan   

  1. (School of Civil Engineering, Hebei University of Technology, Tianjin 300401,P.R.China)
  • Received:2015-10-23 Revised:2015-11-19 Online:2017-01-20 Published:2017-02-08
  • Contact: 王金伟(1989—),男,河北唐山人,硕士研究生,主要从事道路与交通工程方面的研究。E-mail: wjwylxq@126.com。

摘要: 通过用JL-BPAC(A)检测仪对实际工程中预制箱梁的注浆孔道进行注浆饱满度检测,对检测的数据用χ2检验法进行正态分布检验,并对结果检验其是否符合一致性。检验结果表明:冲击弹性波在正常的注浆孔道中服从正态分布的传播规律,故其数学平均值可以作为总体的数学期望,揭示了冲击弹性波在注浆孔道中的传播特性;同时也说明了这批孔道注浆属于正常施工的范畴。并根据实际工程中的实际情况,提出了提高孔道注浆饱满度的方法。

关键词: 桥梁工程, 冲击弹性波, 注浆孔道, χ2检验, 正态分布

Abstract: This paper checked prefabricated box beam grouting tunnels with JL-BPAC(A) in the actual project. The normal distribution of the original data was checked by using the χ2 method, and the result consistency was verified. The results indicate that the impact elastic wave in normal grout duct propagates the rule of normal distribution. The mathematical average value in the tests can be used as an overall mathematical expectation for all the samples, thus disclosing the propagation characteristics of impact elastic wave in grout duct meanwhile showing the normal construction of current duct grouting. The method of improving the completeness of the tunnel grouting is raised.

Key words: bridge engineering, impact elastic-wave, grouting duct; χ2 test, normal distribution

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