Page 217 - 《应用声学》2025年第3期

第 44 卷 第 3 期 Vol. 44, No. 3
2025 年 5 月 Journal of Applied Acoustics May, 2025

⋄ 研究论文 ⋄

套筒灌浆饱满度对声发射信号传播特性影响 ∗

虞爱平 1,2 李秀鑫 1 吴晓蔓 1 邓雪莲 1,2† 李翔昊 1

(1 桂林理工大学土木工程学院 桂林 541004)
(2 广西绿色建材与建筑工业化重点实验室 桂林 541004)

摘要：为了解决对套筒灌浆饱满度的定量检测这一难题，提出了基于声发射技术的灌浆饱满度检测方法。根
据水平灌浆和竖直灌浆这两种灌浆方式下的灌浆饱满度声发射技术检测试验，利用小波包分析不同灌浆饱满
度声发射波形信号参数变化规律，探寻灌浆饱满度声发射检测方法。试验表明：两种灌浆方式下，自动传感器
测试激发信号在套筒内部均出现高频向低频转移的特征；通过小波包能量占比建立不同灌浆饱满度与饱满度
灌浆缺陷指标 (GDI) 的关系模型，随着饱满度的增大，GDI 呈线性减小趋势，可以定量评估不同灌浆方式下套
筒灌浆饱满度；GDI 值与饱满度的相关性极大，且与灌浆料的分布状态有关。利用声发射技术并基于研究所提
方法定量检测分析套筒灌浆饱满度是合理有效的，适用于大部分实际工程。
关键词：套筒灌浆；饱满度；声发射；小波包分析；灌浆缺陷指标
中图法分类号: TU528.1 文献标识码: A 文章编号: 1000-310X(2025)03-0751-08
DOI: 10.11684/j.issn.1000-310X.2025.03.024

Effect of sleeve grouting compactness on acoustic emission signal

propagation characteristics

1
1
YU Aiping 1,2 , LI Xiuxin , WU Xiaoman , DENG Xuelian 1,2 and LI Xianghao 1
(1 Guilin University of Technology, College of Civil Engineering, Guilin 541004, China)
(2 Guangxi Key Laboratory of Green Building Materials and Construction Industrialization, Guilin 541004, China)

Abstract: In order to solve the problem of quantitative detection of sleeve grouting compactness, a method
based on acoustic emission technology was proposed. In this paper, acoustic emission (AE) technique is used
to measure the grouting compactness under two grouting methods of horizontal grouting and vertical grouting.
And the wavelet packet is used to analyze the variation rule of AE waveform signal parameters in different
grouting compactness, and the detection method of grouting compactness is explored. The test results show
that under two grouting methods, the auto sensor test excitation signal has the characteristics of high-frequency
to low-frequency transfer in the sleeve. The relationship model between grouting compactness and grouting
defect index (GDI) was established by wavelet packet energy ratio. With the increase of grouting compactness,
the GDI showed a linear decreasing trend, and the grouting compactness of sleeve under different grout-
ing methods could be quantitatively evaluated. GDI is highly correlated with the saturation and is related to the

2023-12-20 收稿; 2024-03-21 定稿
国家自然科学基金项目 (51968014), 广西自然科学基金项目 (2022GXNSFAA035553), 广西高校中青年科研基础能力提升项目
∗
(2024KY0276)
作者简介: 虞爱平 (1981– ), 男, 江西丰城人, 博士, 教授, 研究方向: 混凝土耐久性和工程材料。
† 通信作者 E-mail: 845536875@qq.com