COMPOSITE TYPE STEEL TEMPORARY CONSTRUCTION AND CONSTRUCTION METHOD THEREOF

摘要

The present invention relates to a temporary earth retaining structure with improved constructability, watertightness and structure integration. Therefore, the technical matter of the present invention relates to a temporary earth retaining structure for constructing a structure such as a pier foundation of a composite temporary retaining structure or the like, an underpass, a buffer storage facility or the like, wherein a plate socket injected with a waterproof material is provided to the surface of a central connection rib of an H pile (100), the plate socket is formed to be coupled with an end portion of a sheet pile by a vertical sliding method so as to secure watertightness (a watertightness securing plate is joined to boundary surfaces of an earth and sand layer and a rock layer and the back filling of mortar is carried out) while enabling fast and convenient assembling. Herein, a surface coming in contact with a waling side so as to be supported thereby is inserted with a force transmitting wedge and a groove filling wedge such that the H pile, the sheet pile and the waling come into close contact with one another, thereby carrying out structural integration and largely improving the structural strength of the temporary structure. In addition, the construction is simplified and the economic efficiency is improved. The H pile and the sheet pile can be disassembled later. The H pile can be simultaneously used for an earth and sand section and a rock section such that the connectivity is secured for the earth pressure stress, carrying out the wall member integration.