METHOD FOR CONSTRUCTING UNDERGROUND STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a method for constructing an underground structure for easy and economical removing operation and process after that. SOLUTION: At construction of an underground structure, an annular support of reinforced concrete is used inside a breasting for bearing a circumferential compressive stress under an external force. The annular support is divided into a plurality of arc members. The divided arc members are utilized as a load for the underground structure.