摘要
城市地下管线普查对于城市综合管理、智慧城市建设起着重要作用﹒本文基于探地雷达检测技术,结合频谱分析和小波能量矩方法,通过构建的管线探测正演模型和设计的管线探测物理模型试验,对不同埋深、不同填充介质的管线探测信号功率谱及能量矩分布规律进行了探究.研究结果表明:含水管线探测信号主频始终小于充填空气管线的,且管线信号主频随管线埋深增加无明显变化;含水管线探测信号能量矩均值及标准差均大于充填空气管线的,且管线信号能量矩总和及标准差均随管线埋深增加而不断降低.
The survey of urban underground pipelines plays an important role in urban comprehensive management and smart city construction.Based on the ground penetrating radar(GPR)detection technology,combined with spectrum analysis and wavelet energy moment method,through the constructed forward model and designed physical model experiments for pipeline detection,the power spectrum and energy moment distribution of pipeline detection signals with different buried depths and different filling media are studied.The results show that the main frequency of water-containing pipeline detection signal is always less than that of the air-filled pipeline,and the main frequency of the pipeline signals has no obvious change with the increase of the buried depth of the pipeline;and the average value and standard deviation of energy moment of water-containing pipeline detection signal are larger than those of air-filledpipeline,the sum of energy moments and standard deviation of pipeline signals energy moment decrease with the increase of pipeline buried depth.
作者
张亮
邓泽邦
张胜
邓宗伟
李海
陈健琼
ZHANG Liang;DENG Zebang;ZHANG Sheng;DENG Zongwei;LI Hai;CHEN Jianqiong(School of Civil Engineering,Hunan City University,Yiyang,Hunan 413000,China)
出处
《湖南城市学院学报（自然科学版）》
CAS
2023年第5期1-6,共6页
Journal of Hunan City University:Natural Science
基金
国家自然科学基金项目(52308399)
湖南省教育厅科研项目(22A0562,21B0725)
湖南省自然科学基金项目(2021JJ50139,2021JJ50157)
湖南省大学生创新创业训练计划项目(S202111527024)。
关键词
城市地下管线
探地雷达
傅里叶变换
小波能量矩
模型试验
urban underground pipelines
GPR
Fourier transform
wavelet energy moment
model experiment
