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侨福花园广场深基坑工程基坑深达21.675m,采用上部复合土钉墙、下部地下连续墙的组合支护体系,按照信息化施工要求对土钉内力进行了长时间监测,根据监测曲线,运用回归分析方法建立了土钉内力非线性回归模型,得出了土钉内力与时间的相互关系,并得到了分别适合于中短期以及中长期土钉内力与时间相互关系的较为理想的回归函数。监测结果和数据分析表明,土钉内力监测中应用回归分析是完全可行的,有助于提高深基坑工程领域信息化施工的准确性和预见性。
The foundation pit of the deep foundation pit project of Park Plaza in Qiaofu Park is as deep as 21.675m. The combined support system of the upper composite soil nailing wall and the lower underground continuous wall is used to monitor the internal force of soil nail for a long time according to the informational construction requirements. According to the monitoring curve , A nonlinear regression model of internal force of soil nail was set up by regression analysis. The relationship between internal force of soil nail and time was obtained and the ideal regression was obtained which was fit for the relationship between internal force of soil nail and medium and long term respectively function. Monitoring results and data analysis show that it is feasible to apply regression analysis in soil nailing monitoring to improve the accuracy and predictability of information construction in deep foundation pit engineering.