论文部分内容阅读
通过对地电阻率法预报地震效能和研究工作现状的清理,得到以下五点结论:1.多孔岩石的电阻率对应力-应变有灵敏响应;2.在强震前可能记录到地电阻率的异常变化;3.通过对现用仪器及观测条件的全面清理和评价,认为DDC-2及P_(Z40)基本能满足实际使用的精度;4.当探测深度大于300m时,可以把季节干扰因素压至2％以下;5.由统计得到地电阻率前兆异常的持续时间、出现范围与地震震级有一定的关系。 本文还讨论了观测、仪器及台网布局所存在的问题,并提出了今后地电阻率法预报地震的科研方向和攻关课题。
Through the earth resistivity prediction of seismic performance and the status quo of research cleaning, the following five conclusions: 1, the resistivity of porous rock sensitive to stress-strain response; 2 may be recorded before the strong ground resistivity Abnormal changes; 3.According to the comprehensive cleaning and evaluation of the current instruments and observation conditions, DDC-2 and P_ (Z40) can basically meet the actual use of precision; 4. When the detection depth is greater than 300m, the seasonal interference factors Pressure to 2% or less; 5. From the statistics, the duration of the precursor anomaly of earth resistivity, the range of occurrence and the magnitude of the earthquake have a certain relationship. This paper also discusses the problems existing in the observation, instrumentation and network layout, and puts forward the scientific research directions and research topics of earth resistivity prediction in the future.