圣彼得堡地铁1号线“森林”站与“英勇广场”站之间的区间隧道穿越涅瓦河古河道，在施工期间和1975年投入运营后发生了一系列事故，后期隧道内大量涌水涌砂，导致地面沉降、隧道变形，结构严重破坏，最终于1995年终止列车运行。论文介绍了在特殊地质条件下的施工方法，回顾了事故的经过及其对策，根据相关的现象分析了事故的原因。

“LesnayaMuzhestvo Square” running tunnel on Line 1 of Saint Petersburg Metro went across the ancient river channel of the Neva River. A series of accidents occurred during the construction period and after the tunnel was put into use in 1975. In the late period, lots of water inflow with quicksand came into the tunnel, which resulted in surface settlement, deformation of the tunnel, serious damage of the structure and the close of the tunnel in 1995. After an introduction to the construction method, the course of the accidents and the countermeasures taken, the causes for the accidents are analyzed in the paper.