AIR SHAFT STRUCTURE USING SPANCRETE AND ITS INSTALLING METHOD

摘要

PURPOSE: Provided are air shaft structure using spancrete and its installing method to reduce the working time with more less men power and the costs of materials such as mould and timbering, take effect on an air shaft structure with ready-made spancrete. CONSTITUTION: The air shaft structure using spancrete comprises the following as: concrete lining brackets on both sides of the upper and inside tunnel; air shaft space made up on the upper part by installing spancrete, which is characterized by CT angle between each spancrete and strap installed turn buckle and wire rope between each CT angle and tunnel ceiling with high strength anchor, air vent equipped between both concrete lining brackets; filling concrete between spancrete and lining bracket.