Asaoka改进法及Asaoka-hyperbola混合法(HAHM)在地基沉降预测中的应用

Application of modified Asaoka method and hybrid Asaoka-hyperbola method( HAHM) to forecast ground settlement

由于Asaoka法和三点法具有明确的理论基础,且计算较为简单,参数易于求出,在地基沉降预测中得到广泛的应用。针对Asaoka法存在的误差传递问题,在原方法的基础上增添误差修正项,得到了Asaoka改进法;针对三点法在求参数时,对三个观测时间点要求较高的问题,通过对算法公式进一步变形,并利用Asaoka改进法,得到Asaoka-hyperbola混合法(HAHM,即hybrid Asaokahyperbola method)。工程实例应用结果显示,这两种改进方法在沉降预测中都有更好的效果。

Because of the explicit theoretical basis,simple calculation and easily obtained parameters,Asaoka method and hyperbola method are applied widely to forecast ground settlement. For the error transfer problem in Asaoka method,an improved one is obtained by adding an error correction to the original method. When using hyperbola method to solve the parameter,the three observation timing must be accurate. A hybrid Asaoka-hyperbola method is obtained by further transformation of the formula and the improved Asaoka method. The test results verify the validity of the two improved methods in the forecast of ground settlement.