Scope of Works
UEA Trenchless was awarded the Tallawong Road water main adjustment project under its Sydney Water W2 supplier listing. The project involved the turnkey asset relocation of the existing mains for the cut and cover rail construction on Sydney Metro Northwest rail project.
UEA Trenchless installed HDPE PN20 pipes, performing five parallel HDD bores through 90mpa Minchinbury sandstone using a Vermeer D300x500 and Vermeer D100x120. The PN20 pipes ranged from 800mm to 280mm and will replace the existing water mains, which are required to be removed to facilitate the installation of the Sydney Metro Rail line. UEA was contracted to deliver both the trenchless and trenched components of work.
- Utilisation of D300 HDD Rig and D100 HDD Rig
- Steering Engineer employed to monitor bore accuracy and provide feedback to the drill rig
- Large excavations in rock to conduct bore tie-ins
- Conventional trenching works, including significant and detailed anchor/thrust blocks and concrete encasement