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我们从水位整点值与重力固体潮理论值的相关系数r的分析中发现了从水位记录图纸上不易直观判断的临震异常,提出了临震异常的数值指标,这是从水位固体潮变化中提取地震信息的一次尝试。一、井孔条件丰南岳—42井是国家地震局京津冀井网的一口观测井,位于丰南县高庄乡岭子上村,构造上处于开平向斜的西北翼、唐山大震的发震构造—唐山断裂带的西侧。该地是
Based on the analysis of the correlation coefficient r between the theoretical value of the whole point of water level and the value of gravity tide, we found that it is not easy to judge the imminent anomalies directly from the record of water level records, and put forward the numerical index of the anomaly of earthquakes. In an attempt to extract seismic information. I. Wellbore Conditions Fengnanyue-42 well is an observation well of the Beijing-Tianjin-Hebei well network of the State Seismological Bureau. It is located in the Lingzi Shangcun, Gaozhuang, Fengnan County. It is structurally located in the northwestern wing of the Kaiping syncline. Seismotectonic - west of Tangshan fault zone. The place is