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围护结构基坑监测中的混凝土支撑轴力实际大小构成受到混凝土支撑构件本身弯压受力和混凝土支撑非荷载因素的影响,如果仅仅用去掉某个参数或假定某个参数不变来简化计算和分析,会使现场监测得到的支撑轴力与实际基坑开挖引起的支撑轴力产生较大误差。因此通过实际模型监测数据计算及综合因素的分析可以知道混凝土支撑构件本身弯压受力和混凝土支撑非荷载因素影响的大小,可以计算出围护结构支撑轴力实际受力值在现场监测得到的支撑轴力值中的占比范围,为后续动态施工和设计调整提供科学数据支持。
The actual size of the concrete support axial force in the foundation pit monitoring of the retaining structure is affected by the bending force of the concrete support member itself and the non-load factor of the concrete support. If the calculation is simplified only by removing one parameter or assuming a certain parameter is not changed And analysis, will make the on-site monitoring of the support shaft force and actual pit excavation caused by the axial force greater error. Therefore, through the calculation of actual model monitoring data and the analysis of comprehensive factors, the influence of the bending strength of concrete supporting member itself and the influence of non-loading factor of concrete support can be known, and the actual force value of supporting axial force of supporting structure can be calculated on site Proportion of supporting shaft force value, providing scientific data support for subsequent dynamic construction and design adjustment.