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先对带坑中坑基坑可能存在的分布形式进行了分析总结,并以此为依据提出了一种带坑中坑基坑的统一理论分析模型;再结合基坑深度、平面尺寸等影响因素,定性分析了内、外坑处于不同位置时带坑中坑带坑的耦合变形规律;最后将内坑土体视作反向荷载,建立了一种新的分析带坑中坑基坑的力学分析模型,并推导出了带坑中坑基坑应力场和位移场解析解。
Firstly, the possible distribution pattern of pit-foundation pit in pit is analyzed and summarized. Based on the analysis, a unified theoretical analysis model of pit-foundation pit with pit is put forward. Combining with the influencing factors of pit depth and plane dimension , Qualitatively analyzed the coupling and deformation regularities of the pocketed pits in the pits when the inner and outer pits were in different positions. Finally, the inner pits were regarded as the reverse loads, and a new mechanics to analyze the pits in the pits was established Analyze the model and deduce the analytic solution of the stress field and the displacement field of the foundation pit with pit.