In this study, through an analysis of vibration response characteristics of joint surface stiffness on dangerous rock mass, the relationship formula between amplitude ratio of the dangerous rock mass to the bedrock and the length of the bonding section of the joint surface is determined. The stability of the rock mass can be evaluated by combining the formula with the existing rock-mass limit equilibrium theory. This study proposes the existence of a resonance bonding length for the dangerous rock mass. When the length of the bonding section reaches the resonance bonding length, the dangerous rock mass has the largest response to the bedrock vibration. The study found that when the length of the bonding section of the dangerous rock mass is longer than the resonance bonding length, the amplitude ratio increases with the decrease of the bonding section and increases with the increase of the vibration frequency of the bedrock. When the length of the bonding section of the dangerous rock body is shorter than the resonance bonding length, the amplitude ratio decreases with the decrease of the bonding section and decreases with the increase of the vibration frequency of the bedrock. Indoor experiments were conducted by collecting the vibration time-history curves of rock blocks and stone piers and performing analysis and calculation, which proved the accuracy of the analytical results. Through the amplitude ratio of the dangerous rock mass and the bedrock, the bonding length can be calculated. This method can improve the calculation accuracy of the stability coefficient K of the dangerous rock mass.

中文翻译：

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基于振幅比的危险岩体节理面粘结断面计算方法

本研究通过分析危险岩体节理面刚度的振动响应特性，确定危险岩体与基岩的振幅比与节理面粘结段长度的关系式。可以通过将公式与现有的岩体极限平衡理论相结合来评估岩体的稳定性。这项研究提出了危险岩体存在共振粘结长度的问题。当粘结部分的长度达到共振粘结长度时，危险岩体对基岩振动的响应最大。研究发现，当危险岩体粘结段的长度大于共振粘结段的长度时，振幅比随结合截面的减小而增大，随基岩振动频率的增大而增大。当危险岩体的粘结部分的长度短于共振粘结长度时，振幅比随着粘结部分的减小而减小，并且随着基岩的振动频率的增大而减小。通过收集岩石块和石墩的振动时程曲线并进行分析和计算，进行室内实验，证明了分析结果的准确性。通过危险岩体和基岩的振幅比，可以计算出粘结长度。该方法可以提高稳定系数的计算精度 当危险岩体的粘结部分的长度短于共振粘结长度时，振幅比随着粘结部分的减小而减小，并且随着基岩的振动频率的增大而减小。通过收集岩石块和石墩的振动时程曲线并进行分析和计算，进行室内实验，证明了分析结果的准确性。通过危险岩体和基岩的振幅比，可以计算出粘结长度。该方法可以提高稳定系数的计算精度 当危险岩体的粘结部分的长度短于共振粘结长度时，振幅比随着粘结部分的减小而减小，并且随着基岩的振动频率的增大而减小。通过收集岩石块和石墩的振动时程曲线并进行分析和计算，进行室内实验，证明了分析结果的准确性。通过危险岩体和基岩的振幅比，可以计算出粘结长度。该方法可以提高稳定系数的计算精度 振幅比随结合截面的减小而减小，随基岩振动频率的增大而减小。通过收集岩石块和石墩的振动时程曲线并进行分析和计算，进行室内实验，证明了分析结果的准确性。通过危险岩体和基岩的振幅比，可以计算出粘结长度。该方法可以提高稳定系数的计算精度 振幅比随结合截面的减小而减小，随基岩振动频率的增大而减小。通过收集岩石块和石墩的振动时程曲线并进行分析和计算，进行室内实验，证明了分析结果的准确性。通过危险岩体和基岩的振幅比，可以计算出粘结长度。该方法可以提高稳定系数的计算精度 粘结长度可以计算出来。该方法可以提高稳定系数的计算精度 粘结长度可以计算出来。该方法可以提高稳定系数的计算精度危险岩体的K。