【摘要】 人工地震为研究近场地面运动提供了理想的振动源。在一次试验过程中,我们获得了31条强地面运动模拟量记录,其中最大加速度幅值为0.7g。这批珍贵记录利用数字化台进行数字化,并由具有专用软件的电子计算机进行误差修正和分析处理。得到各种谱曲线(富氏谱、功率谱、反应谱)75条,及数字化数值15万个。为研究强震地面运动特征、估计震源参数和检验理论计算的合理性提供有价值的基础资料。更多还原

【Abstract】 Man-made earthqakes provide ideal vibration sources for studying near-field ground motions. We got 31 analog records of strong ground motions during one of the tests, the maximum acceleration amplitude of which amounts to 0.7 g. These valuable records arc digitized by a digitizer and then a computer using specially-programmed softwares is employed in the error correction and analysis of the records. After the processing of the data, 75 spectra curves of different types (Fourier, power and response spectra) together with 150, 000 items of digitized data are obtained. All these provide significant first-hand information for the study of the characteristics of strong ground motions, the assessment of focal parameters and finally, the test of the rationality of the theoretical calculations .更多还原