THE ASSEMBLY FORMWORK UNIT AND THE METHOD OF SUPPORTING SOIL PRESSURE IN ROCK SECTION FOR TOPDOWN

摘要

PURPOSE: A prefabricated mold unit for soil pressure transmission and a soil pressure supporting method for a topdown construction are provided to reduce construction costs and periods by using unique soil pressure transmission mechanism that the bedrock has and to reduce material costs by reusing used materials. CONSTITUTION: A prefabricated mold unit for soil pressure transmission comprises a slab support body(100), an extension body(200), a connecting unit(300), and a support frame(400). One end of the slab support body is connected to a slab and the other end thereof is connected to the extension body. One end of the extension body is connected to the slab support body and the other end thereof is connected to an H-pile installed on the bedrock. The connecting unit connects the slab support body and the extension body. The support frame is connected to the H-pile and supports the slab support body and the extension body. [Reference numerals] (AA) H-pile; (BB) Bedrock; (CC) Underground outer wall; (DD) Slab; (EE) Inside line of the underground outer wall