What measures protected Keppel Viaduct foundations during tunnelling works?

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No Specific Protective Measures for Keppel Viaduct Foundations Detailed

The reference material states that crews had to navigate tunnelling works beneath the live Keppel Viaduct while protecting its foundations. However, the specific engineering techniques or protective measures employed to safeguard the viaduct's foundations during this process are not detailed in the provided text. The completion of the final stretch of the Circle Line, including the Keppel station, marks the end of a project with significant engineering challenges.
Tunnelling Underneath a Live Viaduct

Construction crews undertook the complex task of tunnelling beneath the Keppel Viaduct, which remained operational throughout the construction period. This required careful planning and execution to ensure the viaduct's continuous use. The proximity of the tunnelling work to the existing structure presented a considerable engineering hurdle.
Protection of Foundations Mentioned

The text explicitly mentions that the protection of the Keppel Viaduct's foundations was a key consideration during the tunnelling operations. This indicates that measures were indeed put in place to prevent any adverse impact on the structural integrity of the viaduct. The need for such protection underscores the age and importance of the infrastructure.
Broader Engineering Challenges of the Project

The tunnelling works for this final stage of the Circle Line were described as one of the Land Transport Authority’s most challenging engineering undertakings. This included tunnelling just 7 metres beneath the nearly century-old Tanjong Pagar Railway Station without causing damage, highlighting the complex nature of the overall project. The successful navigation of these varied engineering feats has culminated in the completion of the MRT line's loop.

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What measures protected Keppel Viaduct foundations during tunnelling works?

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