三峡机场高填方土基沉降观测与计算研究

The settlement observation and calculation for deep fill soil in the Three Gorges airport

运用工程测量与土力学计算相结合的方法并考虑飞机荷重的影响,将各种方法的计算结果进行综合分析,合理地拟定了三峡机场高填方土基剩余沉降量、倾斜、土基固结度和回弹模量等技术值,为高填方土基面上混凝土施工期决策及时地提供了科学依据,据此而进行的施工,经竣工验收和4年来的通航检验,证明土基稳定,运行安全。

This paper presented a method that combines engineering survey and soil mechanics calculation,taking the effect of airplane's load into account.Then it analysed synthetically the calcuating results of many methods,and studied rationally technical values for Three Gorges Airpor's deep fill soil,e.g.residual settlement,inclination,degree of consolidation and modulus of proved resilience.Thus the paper afforded duly scientific data for the decision of the concrete pouring time on the deep fill soil base level.The construction was just on this basis.The soil base proves steady and the operation safe through the completion chest and the verification of4years of navigation.