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依托某机场道基填筑工程,针对基岩上天然沉积土厚度变化较大的分布特征,根据线性多级线性加载成层地基固结理论,分析了沉降速率与工后沉降的关系,建立了多级线性加载模式下,成层地基沉降速率、工后沉降、地基固结性状与设计年限的控制方程。通过依托工程的计算分析,验证了原设计沉降速率控制标准的合理性,同时提出了跑道区不同沉积土厚度宜采用不同沉降控制速率原则与方法,论证了与非跑道区工后沉降相对应的沉降速率控制标准,对依托工程有直接的指导意义,对今后类似工程的地基沉降速率控制具有参考价值。
Aiming at the distribution characteristics of natural sediment thickness variation on bedrock, based on the theory of linear multistage linearly loaded bedrock foundation consolidation, the relationship between settlement rate and post-construction settlement is analyzed, and more Under the linear loading mode, the governing equations of settlement rate of stratified foundation, post-construction settlement, consolidation behavior of foundation and design life are given. Through the calculation and analysis of the relying on the project, the rationality of the control standard of the original design settlement rate is verified. At the same time, the principles and methods of different settlement control rates should be proposed for the different sediment thickness in the runway area. Sedimentation rate control standards, has a direct guidance on the relying on the project, the future of similar projects in the settlement rate control of ground reference has a reference value.