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低应变反射波法水平旋喷桩质量评定研究
收稿日期: 2012-06-12
修回日期: 2012-12-03
网络出版日期: 2013-02-06
基金资助
铁道部科技研究开发计划重大课题(2011G004)
Study on Evaluation of Jet Grouting Pile Quality by Low Strain Reflection Wave Method
Received date: 2012-06-12
Revised date: 2012-12-03
Online published: 2013-02-06
白中坤 , 于少辉 , 杨朝帅 . 低应变反射波法水平旋喷桩质量评定研究[J]. 隧道建设, 2013 , 33(1) : 27 -32 . DOI: 10.3973/j.issn.1672-741X.2013.01.005
When large crosssection tunnels are excavated in waterrich fine silty sand ground, advance horizontal jet grouting pipes are needed to reinforce the tunnel face so as to ensure safe excavation. Therefore, it is very important to ensure the quality of the horizontal jet grouting piles. The quality of 5 horizontal jet grouting piles installed in the top heading of a tunnel is detected by low strain reflection wave method. The detection results are compared with the actual quality of the piles exposed, which demonstrates that the low strain reflection wave method adopted is a fast, reliable and nondestructive qualitydetection mehtod.
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