用非等时距序列灰色模型预测粉喷桩的承载力

针对粉喷桩单桩承载力具有随时间增长而增大的现象，运用灰色理论，建立了非等时距预测GM（1, 1）模型，对粉喷桩承载力进行了预测，并取得了很好的效果。通过实测值与预测值的分析，认清了粉喷桩承载力的时效性规律及变化趋势，提出了进行粉喷桩单桩载荷试验的适宜时间。

The cement soil pile bearing capacity forecasting by method of unequal time series grey model

In the light of that the increase of bearing capacity of a single cemcnt soil pile is obvious as time goes on, an unequal time series grey forecasting model of GM(1,1) is established according to the grey theory; and a single cement soil pile’s bearing capacity is well forecasted by the established model. Through the comparative analysis of the observed data and forecasting date, the time effect law and change tendency of single pile’s bearing capacity are made clear. Finally, the suitable time is suggested to loading test of the cement soil pile.