| 摘要 |
A Rahmen type underground tunnel construction method using a lateral PSC beam is provided to reduce the moment generated in the connection part of the upper slab and thus to reduce the sectional thickness of the slab and stud wall. A Rahmen type underground tunnel construction method using a lateral PSC beam comprises a step of building a pair of stud walls(120) in the direction of underground tunnel, a step of setting both ends of a lateral PSC(prestressed concrete) beam(140) on the top of the stud walls, a step of forming an underground tunnel upper slab on the top of the lateral PSC beam and stud wall, a step of connecting the lateral PSC beam bottom and the stud wall top by using a hunch unit, and a step of forming an underground tunnel base slab between the bottom sides of the stud walls and setting it on the completed underground tunnel. |
