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以银川大世界商务广场的基坑为例,介绍了大型基坑工程水平位移监测的实施方案,给出了水平位移监测方法的精度,并对监测成果进行了分析。在此基础上,分别用多项式拟合和时间序列分析模型两种方法进行建模,对基坑水平位移进行预测,结果表明,该基坑水平位移较小,在规范规定的要求之内,说明基坑是稳定的;时间序列分析模型的预测精度要高于多项式拟合模型的精度。
Taking the foundation pit of Yinchuan Great World Business Plaza as an example, this paper introduces the implementation plan of horizontal displacement monitoring in large foundation pit project, gives the precision of horizontal displacement monitoring method, and analyzes the monitoring results. On this basis, we use the two methods of polynomial fitting and time series analysis respectively to model and predict the horizontal displacement of foundation pit. The results show that the horizontal displacement of the foundation pit is small and within the requirements of the code, The foundation pit is stable; the prediction accuracy of the time series analysis model is higher than that of the polynomial fitting model.