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沉入式圆筒结构的抗倾有效比是一个重要的参数 ,它对结构自身的抗倾稳定和变位大小有很大的影响。该参数目前在我国没有进行过深入研究 ,也没有可靠的确定方法可循。本文采用模型实验以实测筒内、外和筒底土压力为依据 ,分析了内填料和地基土与无底圆筒结构的互相作用 ,着重探讨了圆筒结构在倾覆过程中摩阻力调整机理及抗倾有效比的变化规律。在此基础上确定了抗倾有效比的计算方法。并与试验结果进行了比较 ,表明二者吻合较好
The anti-dumping effective ratio of the sunk-in cylindrical structure is an important parameter, which has a great influence on the anti-tilting stability and the displacement of the structure itself. This parameter is currently in our country did not conduct in-depth study, there is no reliable method to determine. In this paper, the model experiment is used to measure the pressure inside and outside the cylinder and the bottom of the cylinder. Based on the analysis of the interaction between the inner packing and the bottomless cylinder structure, the mechanism of frictional resistance adjustment and its resistance Change the law of effective ratio. On this basis, the calculation method of anti-dumping effective ratio is determined. And compared with the test results, indicating that the two agree well