（1 江苏建筑科学研究院有限公司， 南京 210008； 2 江苏省建筑工程质量检测中心有限公司， 南京 210028）

［摘要］针对目前装配式混凝土结构的浆锚搭接灌浆饱满度缺乏有效的无损检测技术，以某一装配式混凝土结构工程为背景，研究基于冲击回波的无损检测方法在工程中的应用及测试效果。详细阐述了冲击回波法现场检测某装配式混凝土工程剪力墙波纹管浆锚搭接节点灌浆饱满度的测试过程，分析了三种典型墙体波纹管连接节点测试结果的频谱图和名义厚度图；通过对频谱图、名义厚度图的分析，以及局部取芯验证，得出冲击回波法可准确判断金属波纹管内灌浆的饱满度，总体测试结果准确。

［关键词］冲击回波法； 浆锚搭接； 波纹管； 灌浆饱满度； 无损检测； 装配式建筑

中图分类号：TU375文献标识码：A文章编号：1002-848X(2018)23-0028-05

Application study on testing grouting quality of grouted and splicing  joints in precast concrete structure using impact-echo method

Jiang Yu 1,2, Sun Zhenghua 1,2, Fu Lei 1,2, Wei Xiaobin 1,2, Wu Bo 1,2

(1 Jiangsu Research Institute of Building Science Co., Ltd., Nanjing 210008, China; 2 Jiangsu Testing Center for Quality of Construction Engineering Co., Ltd., Nanjing 210028, China)

Abstract:In view of the lack of effective non-destructive testing technology for grouting quality of grouted and splicing joints in precast concrete structures at present, the application and test effect of non-destructive testing technology based on impact-echo method in a precast concrete structure project were studied. The testing process of grouting quality of grouted and splicing joints of corrugated pipe in shear wall of a precast concrete structure project was described in detail, and the spectrum diagram and nominal thickness diagram of three typical wall corrugated pipe joints were analyzed. Through the analysis of the spectrum diagram and the nominal thickness diagram, as well as the local coring verification, it is concluded that the impact-echo method can accurately determine the grouting quality of metal corrugated pipe,   and the overall test results are accurate.

Keywords:impact-echo method; grouted and splicing joints; corrugated pipe; grouting quality; non\|destructive test; precast building

*国家重点研发计划项目（2016YFC0701800）,江苏省“六大人才高峰”高层次人才选拔培养资助（2016-J2-045),江苏省自然科学基金面上项目(BK20171497)。

作者简介：蒋俣，硕士，助理工程师，Email: xavilt0603@foxmail.com。