RC Roundal Foundations
Challenges: Noise & Dust Control • Live Operational Railway • Safe Emergency Access
THE WORK
As part of the MTR ONSIP Programme of works, the objective was to install new reinforced concrete foundations to support the installation of new totem roundel signage in front of the stations. The project scope included excavation, cable management installation, and reinforcement to ensure the stability and longevity of the signage. The use of high-strength concrete and metal reinforcement cages was employed to create sturdy foundations, and bolts were cast into the concrete to further strengthen the signage columns.
ACTIVITIES
The project was executed in three main phases:
Excavation and Survey Works for Foundation Bases
The initial stage involved careful excavation and surveying to determine the precise locations for the new foundation bases. Proper surveying ensured accurate placement, reducing the risk of errors and ensuring the stability of the totem roundel signage.
Installation of New RC Foundation Bases
High-strength reinforced concrete foundations were constructed at the identified locations. This step was crucial to support the weight and height of the totem roundel signage. The use of reinforced concrete and metal reinforcement cages provided the necessary structural integrity.
Installation of Cable Management
In addition to the foundation construction, a new cable management system was installed, connecting the station electrical room to the new signage. This ensured a neat and organised arrangement of cables, avoiding potential hazards and making future maintenance easier.
CHALLENGES
Noise and Dust Control
The project site being adjacent to residential areas required effective noise and dust control measures to minimise disturbances. To address this, sound barriers were set up around the work areas to reduce noise pollution. Additionally, dust extraction systems were employed to keep dust levels low, maintaining a clean and healthy environment for the neighbours.
Impact on Live Operational Railway
As the project involved working during non-operational hours, special care was taken to minimise the impact on the live operational railway. Pre-planned Night and Weekend possessions of the line were scheduled for installation and material deliveries. This strategy ensured that regular train operations were not disrupted while allowing essential work to be carried out efficiently.
Maintaining Safe Emergency Access Routes
The safety of station users and ensuring clear emergency access routes were paramount. To address this, the installation process was planned in stages. This approach guaranteed that access routes between pedestrian access points and station access remained clear and safe throughout the project duration. In the event of an emergency, passengers could evacuate the station without any hindrance.
Conclusion
The successful completion of the MTR ONSIP Programme for the installation of new totem roundel signage showcases efficient project planning and execution. By utilising high-strength concrete, metal reinforcement, and proper cable management, the newly installed foundations and signage are expected to stand the test of time. Moreover, the careful management of noise, dust, and train operations demonstrated the team’s commitment to minimising disruptions and prioritising the safety and comfort of passengers and neighbouring residents.
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