Contract for the Design and Construction of Improvement of Residual Outfall in the ZAPE and NAPEZone

Project No. 8/2021 Project Status as of October 2023

Project Introduction:

The project is located at Macao Peninsula, starting from the sewage pumping station at the north of Alameda Dr. Carlos D'Assumpção along the Avenida da Amizade to the Macao Sewage Treatment Plant. The sewage pipeline will be laid and installed, with a total length of about 2613 meters. The project is divided into three sections, the front open cutting section, the tunnel construction section and the rear open cutting section. The length of the front open cutting section is about 115 meters, and sewage pipes with diameters of 1 and 1.2 meters are installed in the open-cutting ditch of 2.5 meters deep. The tunnel section is about 2,279 meters and the shield construction method is used to install a pressure sewage pipeline with a diameter of 2 meters at a depth of 13 meters underground. And a departure well and an arrival well will be built. In the rear open cutting section, a sewage pipeline with a diameter of 1.5 meters is installed in a ditch of 2.5 meters deep built with open cutting method, and energy dissipation wells and confluence wells will be constructed.

Current Progress:

This project is currently in progress according to the schedule, and 89.99% of the total project volume has been completed. This project has completed all the engineering design work for the first project node as planned, the construction of the launch shaft for the second node and the arrival of the shield machine on site, and completed all the shield tunnel drilling for the third node as planned. Work. The pipeline installation in the fourth node tunnel is being carried out as planned and the excavation and pipeline laying work of the front cut-and-cover section has been started simultaneously. The energy dissipation shaft, confluence shaft and arrival shaft at the location of Avenida Avenida in Macau Sewage Treatment Plant have been successfully completed. Structural work. This project is scheduled to be completed in January 2024.

Photos of the Project: