关于地震主动土压力计算公式的讨论

摘要

目前各规范中提出的地震荷载作用下边坡土压力的计算公式,虽然形式不同,但其实质上有许多相同之处,它们的主要区别是公式中所采用的系数不同.通过分析比较目前有关规范计算公式的工程适用性和各公式的差别,提出了拟入GB50330规范的地震土压力的计算公式.并通过试算的方法,对拟入GB50330规范计算公式和目前各规范计算公式进行了分析比较,从而论证了拟入CB50330规范计算公式的可信性和合理性.%There are several seismic active earth pressure calculation formulas at different standard codes currently, their functions are almost the same, though there are different expressions. Their main difference is adoption of coefficient dissimilarity in the formulas. This paper provides a seismic active earth pressure calculation formula which is recommended into the GB 50330 standard code, through the analysis and comparison of the applicability and the difference of calculation formulas in the current standard code. Moreover, by try calculation it proved the belief and rationality of the formula recommended into GB 50330 code.