相位法在锚杆锚固质量分析中的应用研究

Application research on phase method in analysis on bolt′s anchorage quality

目前国内锚杆领域的检测,都是基础理论加现场经验来进行判断。理论方面,主要依靠应力波方法,在此基础上推导波动方程。生产中该法已得到了广泛应用,并将理论公式推导、波形验证分析等手段相结合,进行了现场实验分析。同时,在Hilbert变换瞬时相位理论的基础上,对相位曲线进行分析,将相位法应用于锚杆锚固质量分析,判断锚杆的长度和饱满度,同时,也得出了相位法在锚杆锚固质量分析中的应用研究曲线。上述结论在工程实验中进行了验证,也在实际中得到了推广。

At present,the detection of domestic bolt field is based on the basic theory and field experience.In theory,the wave equation is derived based on the stress wave method.This method has been widely used in production,and the field experiment analysis has been carried out by combining theoretical formula derivation and waveform verification analysis.At the same time,on the basis of Hilbert transform instantaneous phase theory,the phase curve was analyzed,and the phase method was applied to the quality analysis of anchor bolt to judge the length and plumpness of the bolt.At the same time,the application research curve of phase method in the analysis of bolt anchoring quality was also obtained.The above conclusions have been verified in engineering experiments,and have been popularized in practice.