The manner null which constructs the construction large space on the great depth underground

摘要

PURPOSE:To construct a building large space to a large-depth under-ground section by building a pile drift from a large-depth shaft, excavating the inside of a spiral shield-tunnel outer circumferential wall body circumferibing to the pile drift and conducting travelling in the internal building bodies of multi- stories. CONSTITUTION:A shaft 1 in depth sufficiently reaching to the building large space of an underground section is constructed, and a pile drift 2 is built in the horizontal direction from a position on its midway of the shaft 1. A shield machine is started from the position on its midway of the shaft 1, a spiral shield tunnel 3 circumscribing to the pile drift 2 is constructed while adjacent shield tunnels 3, 3 are bound mutually, and the insides of the cross sections of the shield tunnels 3 are filled with a reinforcing material 10, thus building an outer circumferential wall body 4. The ground 5 of the internal section of the outer circumferential wall body 4 is excavated, and a large cavity 6 is formed. An internal building body 9 is constructed on rails 7 installed on the floor section of the large cavity 6, and moved. Accordingly, the building large space can be constructed.