Digitalization, Modularisation and Sensors Application of a Deep Excavation Project in Urban District of Hong Kong
Synopsis
The redevelopment of the Excelsior Hotel site included a 3-level basement that required excavation up to 17m. The design of the temporary works consisted of contiguous pipe piles braced by five layers of lateral support to provide stability to the pipe pile wall cofferdam, efficient groundwater cut-off and to control ground movement impact to the adjacent ground and buildings. The adjacent buildings comprised the World Trade Centre, five residential dwellings built in the 1960s, and an existing link bridge structure that required to be supported within the excavation area. This paper will discuss the collaborative and digital approaches in the design and planning of the method and sequence of the work, modularization of the shoring system, and the use of scanning and sensor monitoring devices – that will showcase and promote modern construction for Hong Kong deep excavation work. The collaborative and digital approach streamline the construction work process by first building in the virtual work before the real world. The buildability, safety, and quality of the actual implementation are greatly improved.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.