Prefabricated assembled supporting structure for underground tunnel

The utility model relates to the technical field of urban rail transit. The underground tunnel prefabricated assembled supporting structure comprises a pilot tunnel structure arranged in a concave cavity of an underground soil body, the pilot tunnel structure comprises at least two pilot tunnel bodies, and each pilot tunnel body comprises a first pilot tunnel part and a second pilot tunnel part detachably connected with the first pilot tunnel part. The underground tunnel prefabricated assembled supporting structure has the advantages of being detachable, capable of being repeatedly used, capable of saving materials and environmentally friendly. 本实用新型涉及城市轨道交通技术领域，公开了一种地下隧道预制拼装支护结构，包括：设置在地下土体的凹腔中的导洞结构，所述导洞结构包括至少两个导洞体，其中，各个所述导洞体均包括第一导洞部和与所述第一导洞部为可拆卸式连接的第二导洞部。该地下隧道预制拼装支护结构具有可拆卸、可重复利用、节省材料以及绿色环保的优点。