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1968至1970年国家地震局与石油工业部合作在河北省元氏到山东省济南长270km地段上,进行了人工地震剖面探测(简称元—济剖面)。1974年中国科学院地球所滕吉文教授等人对该资料进行了分析解释。本文在此基础上,重新对比追踪了邢台震中区反射波的震相,并根据石油工业部SJ79—366的剖面结果进行了沉积层校正,在所得出的一维模型的基础上,用二维反演程序进行了射线追踪和走时拟合,进一步得到该区二维速度结构,并对该区强震发生的深部条件进行了讨论。
From 1968 to 1970, the State Seismological Bureau and the Ministry of Oil Industry conducted the exploration of the artificial seismic profile (Yuan-Ji-Chuan profile) on the 270-km section from Yuanshi of Hebei Province to Jinan of Shandong Province. In 1974, Professor Teng Jiewen, Institute of Earth Sciences, Chinese Academy of Sciences, and others analyzed and explained the data. Based on this, we reconsidered the seismic facies of the reflected waves in the epicenter of Xingtai epicenters and corrected the sedimentary layers according to the profile of SJ79-366 produced by the Ministry of Petroleum Industry. Based on the obtained one-dimensional model, The inversion procedure performs ray tracing and traveltime fitting to further obtain the two-dimensional velocity structure in this area, and discusses the deep conditions for the occurrence of strong earthquakes in this area.