高层建筑基础沉降预测模型及方法研究

Study on Settlement Prediction Model and Method of Foundation of High-rise Building

基于高层建筑物施工过程可近似地看为一个线性加载的过程和S形曲线的特征,将广泛用于经济和资源预测的S形曲线模型应用于高层建筑物沉降预测,建立了高层建筑物的广义S形曲线时间-沉降预测模型,阐述了广义S形曲线模型参数的计算方法,并结合两个工程实例与常用的指数曲线法和双曲线法进行了对比计算分析,结果表明广义S形曲线模型用于沉降预测的效果较好,可供工程应用参考。

Based on the construction processes of high-rise building are approximately looked as the linear loading and the characteristics of the S-shape curve, the S-shape curve model which has been used as general- ized prediction of economy and resources, is used to predict the settlement of high-rise building, a generalized S -shape curve model is set up for high-rise building. The calculation methods of the parameters in generalized S -shape curve model are expounded, and combined with two engineering examples, the measured data are com- pared and analyzed with the exponential curve method and hyperbola method, the results show that good effects are obtained as the generalized S-shape curve model and used in settlement prediction, also it is available for references to engineering practice.