沉降预测中的Asaoka法应用研究

Study on application of Asaoka's method to settlement prediction

系统介绍了Asaoka法的基础知识,并基于抛物插值法和直线最小二乘拟合法,编制了该法预测地基最终沉降的程序。结合工程实例,详细分析了时间间隔△t对Asaoka法的预测结果及相关指标的影响,给出了△t的建议取值范围,同时对多级荷载下的某路堤沉降进行了预测。计算结果表明:程序中采用的抛物插值法等是可行的,且Asaoka法自身的优点决定了其具有较高的应用价值。

After the basic theory of Asaoka＇s method is systematically introduced, the relevant calculation program is written based on parabola interpolation method and linear least squares simulation method. Then, detailed analyses of the effect of time interval △t on predicted results and related indexes are done, and the suggested scope of △t is given. Besides, the final settlements of each level loading for an embankment subjected to multi-loadings are forecasted. It is observed that the parabola interpolation method in the calculation code is feasible and Asaoka＇s method has higher application value due to its own characteristics.