抄録
Pipe jacking is the one of the urban tunneling methods in JAPAN. This method might be more profitable than prevalent shield tunneling when the tunnel length is extremely short. However, the large diameter jacking pipe which is more than 3.0m i.d. has not been applied so far due to transport height limitation based on the Road Traffic Control Row. Therefore, the authors suggest that halved casting pipe enables easy transportation without any restriction and it can be combined by tensioning around a launch shaft then installed underground by jacking as same as a conventional method.
This paper concludes about the application of the halved pipe using prestressed concrete as a result of the basic performance test in compliance with the Japanese sewage jacking pipe specification.
