CONSTRUCTION METHOD OF CROSSING UNDERGROUND STRUCTURE AND CROSSING UNDERGROUND STRUCTURE

摘要

PROBLEM TO BE SOLVED: To extend its construction extension, when constructing an underground structure by crossing under a road and a roadway by using a pipe roof.;SOLUTION: When constructing the underground structure (a crossing part tunnel 3) by crossing under the road and the roadway, the pipe roof 4 is formed by burying a pipe 5 in parallel in the ground G so as to cross under these, and a foundation 7 supported by the ground G is arranged in a position opposed in its shaft direction by sandwiching this pipe roof 4. An end part of the pipe roof 4 and the foundation 7 are connected by a tension member 8. While pulling and supporting the pipe roof 4 to both outside in its shaft direction via the tension member 8, after excavating the ground G under this pipe roof 4, the underground structure is constructed.;COPYRIGHT: (C)2006,JPO&NCIPI