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在建筑物的施工过程中,沉降量逐渐增大,建筑物的沉降是否超标以及未来发展趋势如何,需要及时了解,以便采取相应的安全措施。采用灰色系统非等间隔GM(1,1)模型对建筑物的沉降进行预测,根据新采集的数据采用递推最小二乘法对模型参数a、b进行修正,可以不重复建立非等间隔GM(1,1)模型又可以考虑新信息的影响,使计算得到较大的简化。对某高层建筑基础沉降的预测结果表明,灰色系统非等间隔GM(1,1)模型能够较好地预测建筑物的沉降。
In the construction process of the building, the amount of settlement increases, whether the settlement of buildings exceeds the standard and the future development trend, we need to keep abreast of the times in order to take appropriate safety measures. The gray system of non-equal interval GM (1,1) model is used to predict the settlement of buildings. According to the newly collected data, the model parameters a and b are corrected by recursive least square method, and the non-interval GM 1,1) The model can consider the influence of new information and make the calculation simplified greatly. The prediction of subsidence of a high-rise building shows that the gray system non-equal interval GM (1,1) model can predict the subsidence of buildings better.