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首先从理论上推导了钻孔体应变观测井孔耦合系数计算公式，进而根据开尔文潮汐理论建立钻孔体应变观测潮汐因子计算模型，详细研究潮汐因子（δ）变化特征与岩石弹性参数（E3、V3）的关系，指出δ与E3、V3呈非线性关系，δ随后者增大而增大，当E3＜5×1010Pa时，对δ影响显著，反之则影响减弱，并和实际观测资料进行了对比分析。
Based on Kelvin tide theory, a calculation model of borehole body strain observation tidal factor is established. The variation characteristics of tidal factor (δ) and elastic parameters of rock (E3, V3). It is pointed out that there is a nonlinear relationship between δ and E3 and V3, and δ increases with the increase of the latter. When E3 is less than 5 × 1010Pa, the influence on δ is significant, otherwise the influence is weakened and compared with the actual observed data Comparative analysis.