A solution: Hydro performs 'keyhole surgery'

摘要

Through the engineering contractors on the project, the concept of a drop pipe was discussed with Hydro, says Andy Roberts. It was suggested that a Hydro Vortex Drop Shaft should be inserted through the access shaft with the construction of an Energy Dissipation Unit at the bottom. Hydro came up with a novel 'ship-in-a-bottle' solution to construct the Vortex Drop Shaft via the existing access shaft, avoiding major construction and minimising neighbourhood disruption.