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一、关于地基弹性系数的确定方法确定地基弹性系数的方法有很多种,对各种方法的准确性迄今尚缺少客观的比较和评价。为选择适宜的方法,攻关组曾在马鞍山、房山、包头、沈阳、西安等地进行了一系列试验,包括试验基础的强迫振动试验,压模自由振动试验,弹性波速测定试验,野外压板静荷载反复加卸荷试验,室内静三轴反复加卸荷试验。为使试验结果能更好地反映实际,对许多较大的基础进行了各种情况
I. Methods for determining the elastic coefficient of the foundation There are many methods for determining the elastic coefficient of the foundation, and the accuracy of various methods has so far lacked an objective comparison and evaluation. To select the appropriate method, the research team conducted a series of tests in Maanshan, Fangshan, Baotou, Shenyang, and Xi’an, including test-based forced vibration tests, free-mold vibration tests, elastic wave velocity tests, and field plate static loads. Repeatedly added unloading test, indoor static triaxial repeated loading and unloading test. In order to make the test results better reflect the reality, various situations have been made for many larger foundations.