SLAB AND SUBGRADE EXTERNAL WALL STRUCTURE AND METHOD FOR CONSTRUCTING UNDERGROUND SLAB AND SUBGRADE EXTERNAL WALL, BRACKET

摘要

PURPOSE: A slab of an underground structure, a double wall structure, a construction method, and a support bracket are provided to maximize the rigidity of slave including a bury slab. CONSTITUTION: A slab(S) of an underground structure and a double wall structure and a construction method thereof comprise following steps. A support bracket(122) is installed on a retaining wall(100) during the slab construction of each layer. A steel wale structure(130) is placed at fixed intervals along a main slab area(S1) on the support bracket. A built-in type RC step reinforcing rod frame(150) is placed along the buried slab area on the support bracket. The slab is constructed by pouring concrete after a form structure(141) is installed.