基于相似理论与模拟试验，对沉管隧道基础灌砂的主要参数进行了研究；重点介绍了模拟试验的模型设计、试验流程、试验重点注意事项与试验技术要求，通过试验取得了所需的第一手数据，在对试验成果进行总结分析的基础上，对灌砂施工的主要参数进行了验证分析，其成果可为后续沉管隧道的基础灌砂施工提供参考与借鉴。

Based on the similarity theory and simulation experiment, main construction parameters of immersed tunnel are researched. The following items related with the simulation experiment are introduced, which include the model design, experiment process, important points for attention and the technical requirements. A large of the immediate data is obtained by the experiment. On the basis of analyzing test results, the main original parameters on construction of the immersed tunnel are verified and analyzed. The achievement of the experiment can be used to provide reference for the future engineering construction of immersed tunnel.