The analysis of STFT to the medium layers vibration signal and its application in the technology of leaks repair in the landfill

摘要：

Drilling grouting repair technology is an important direction of development in landfill liner leakage detection and repair, the difficulty and keystone of this technology is that how to detect the gravel layer, in order to avoid damaging the HDPE membrane. According to the different responses of the vibration signal in the different media of landfill site, using the short-time Fourier transform (STFT) to analyze the vibration signal and determine the gravel layer. The experimental results show that STFT can reflect the frequency characteristics of the vibration signals in different dielectric layers intuitively and clearly, and distinguish the gravel layer from waste layer.

关键词： landfdl vibration signal STFT

作者: Jin Zhaodi Wang Zhenchong Nai Changxin Dong Lu

作者单位: China University of Mining & Technology Beijing, 100083, China Chinese Research Academy of Environmental Sciences, Institute of Solid Waste Management, Beijing, 10

会议类型: 国际会议

会议名称: 2010 International Conference on Measuring Technology and Mechatronics Automation(ICMTMA 2010)(2010年检测技术与机电自动化国际会议)

会议地点: 长沙

会议语种:英文

页码: 3004-3007

在线出版日期: 2010-03-13（万方平台首次上网日期，不代表论文的发表时间）