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本文基于Merchant模型分别推导了自由应变条件和等应变条件下打穿软粘土层的竖向排水井地基粘弹性固结问题解析解,同时考虑了井阻和涂抹作用的影响.并将两种形式的解编制成相应的计算程序,据此对粘弹性参数的变化进行了大量的计算,探讨了竖向排水井地基粘弹性固结的一般规律.最后利用本文的解对杭甬高速公路试验段塑料排水板软基沉降进行了计算,结果表明粘弹性固结理论较现有线弹性固结理论更加接近实际.
Based on the Merchant model, this paper deduces the analytical solution for the viscoelastic consolidation of vertical drainage wells under soft soils under free-strain conditions and isotropic strains, taking into account the effects of well resistance and smearing. The solution was compiled into a corresponding calculation program. Based on this, a large number of calculations were made for changes in the viscoelastic parameters. The general laws of the viscoelastic consolidation of vertical drainage well foundations were discussed. Finally, the solution of this article was applied to the test section of the Hangzhou-Ningbo Expressway. The calculation of the settlement of the soft foundation of plastic drainage board has shown that the viscoelastic consolidation theory is closer to the actual than the existing elastic consolidation theory.