介绍在浅埋暗挖隧道施工中初衬滑移开裂的加固处理替换技术，首先对滑移部分初衬用工字钢焊接水平支撑及斜撑加固,在近掌子面4m范围内用门字形支撑加固,所有临时支撑完成后对隧道拱部进行填充注浆，最后对滑移面格栅替换及注浆补强。在处理过程中全过程进行监控量测。

In the paper, the strengthening and replacement of the sidewardmoving primary reinforcement structure of a shallowburied undercut tunnel is presented. Firstly, horizontal support elements and inclined support elements made of Ishaped steel are welded to the sidewardmoving primary reinforcement structure to improve its support capacity and portalshaped support structure are installed for tunnel portions within the scope of 4m away from the tunnel face. When all the temporary supports are installed, backfilling grouting is executed for the arch part of the tunnel. Finally, the sidewardmoving lattice girders are replaced and grouting is executed to improve the support capacity. During the full course of the treatment, monitoring and measurement are executed.