CONSTRUCTION METHOD OF TUNNEL TYPE INNER SPACE IN UNDERGROUND BASE ROCK

摘要

PURPOSE: A construction method is for reducing a cost necessary for buying materials without using additional raw material, also for preventing a collapse of a ceiling of a partition and a base rock while constructing an inner space in underground base rock. CONSTITUTION: While constructing an inner space(100) as a tunnel form by a base rock construction method by selecting an entrance(1) and a waiting room(2) according to the shape of the base rock(A), if a worker divides plural inner spaces vertically and horizontally, the part divided to transverse and vertical directions plays a role of a pillar(10) for supporting a ceiling and a bottom floor of the base rock. If a worker divides the pillar as a border, one space divided is additionally formed, so it is used as a stateroom(20) by diving it to use the whole body as one inner space.