Big space does not have subway station supporting construction of full grid bow member of beam column

The utility model discloses a big space does not have subway station supporting construction of full grid bow member of beam column, it includes curved bar bow member structure, surperficial seal andsand, and curved bar bow member structure is formed by many prefabricated component equipments, and the curved bar bow member is structural to set up surperficial seal, and surperficial seal covers the sand outward, surperficial seal constitute by reinforcing bar net piece and concrete, surperficial seal is the waterproof layer. Three kinds of supporting construction of curved bar bow member structure, surperficial seal and sand constitute one and strut the system, strut for whole engineering provides. The utility model discloses combine together with cast -in -place formula and assembled, theconstruction process is simple, shortens construction cycle, provides big space for underground structure. 本实用新型公开了种大空间无梁柱全格栅拱架的地铁车站支护结构，它包括曲杆拱架结构、表面封层和砂土，曲杆拱架结构由多根预制构件组装而成，曲杆拱架结构上设置表面封层，表面封层外覆盖砂土，所述的表面封层是由钢筋网片和混凝土构成，表面封层是防水层