以大连地铁一号线学苑广场—海事大学区间过河段隧道工程为背景，基于一种新型优化算法——差异进化算法进行隧道围岩力学参数反分析,提出以位移值为指标的差异进化位移反分析方法及实现过程, 并将反演得到的围岩力学参数应用到过河段隧道工程开挖方案比较及稳定性分析, 验证了复杂地质条件下该方法的可行性和有效性. 结果表明, 该方法在复杂地质条件下具有较好的可行性，且对选取隧道施工方案、保证隧道安全具有一定的指导意义.同时，所得围岩力学参数也可进一步应用于其他类似工程的相关研究.

Taking the below-river-passing tunnel construction of a section (from Xueyuan Square to Dalian Maritime University) of Dalian metro line 1 as subject, a back analysis method and realizing process of differential evolution was established with the index of displacement value, through carrying on the back analysis of the tunnel surrounding rock mechanics parameters based on a latest superior algorithm—differential evolution. The mentioned surrounding rock mechanics parameters were used to schemes comparison and stabilization analysis of the below-river-passing tunnel excavation construction to verify its viability and availability under complicated geological conditions. It is shown that this method does have its viability and reference effects for construction schemes selection and tunnel security.Besides, the mentioned surrounding rock mechanics parameters deserve the further application to the related research of certain similar constructions.