摘要
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。
First, this paper has deduced theoretically calculation formula of coupling coefficient of observational well-hole of borehole body strain, and according to Kelvin tidal theory set up the calculation model of tidal factor observation by borehole body strain. It has studied the relation between the change characteristics of tidal factors (δ) and elastic coefficient of rocks (E3, v3), and indicated the nonliner relation of δ with E3 and v3. The bigger E3 and v3 are, the bigger δ is. When E3<5 ×1010pa, δ is influenced obviously. Conversely it is influenced weakly. And δ is compared and analysised with real observational data.
出处
《华北地震科学》
1998年第2期10-14,共5页
North China Earthquake Sciences
基金
地震科学联合基金资助!90262
1993
地震科学联合基金资助!9500016
1997
