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对比了增量双曲线法、TS法、全量双曲线法在不同预压期的沉降推算成果。3种方法中,相关系数的变化由大到小分别是:TS法,全量双曲线,增量双曲线法。随着监测数据的增多,3种方法推算的结果趋于一致。3种方法中,增量双曲线法推算结果随着监测数据变化最大,全量双曲线法次之,TS法最小。当监测资料小于1个月时,可采用TS法。但是要想得到较为准确的推算结果,至少需要3个月的实测资料。当实测数据达到6个月时,3种方法推算结果趋于一致。TS法对样本的敏感性较其他两种方法低,更加具有实用性。
Contrast the incremental hyperbolic method, TS method, the full amount of hyperbolic method in different preloading period settlement deduction results. Three kinds of methods, the correlation coefficient changes from big to small are: TS method, total hyperbola, incremental hyperbolic method. With the increase of monitoring data, the results of three methods tend to be consistent. Among the three methods, the estimation of incremental hyperbola method has the largest change with the monitoring data, followed by the full-quantity hyperbola method and the TS method with the smallest value. When the monitoring data is less than 1 month, TS method can be used. However, in order to obtain a more accurate estimation result, at least three months of measured data are needed. When the measured data reach 6 months, the results of the three methods tend to be consistent. TS method of the sample sensitivity than the other two methods is low, more practical.