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17 November 2022 - An aerial view of the Tengah Park station work site. The launch gantry has
been lifted into position in preparation for commencement of viaduct construction. |
BUKIT BATOK ROAD - Its up! Its hanging, suspended in the air. As you drive along, you might be able to spot a blue truss-like structure on the side table of the road. Might may not be quite the right word as the structure is pretty hard to miss. But if you're driving, best not to be distracted... Hence the use of the word, might.
Nonetheless, this presents another major milestone in the construction of the Jurong Region Line (JRL). This is the first launch gantry for the entire project to be put into position, signaling the commencement of another phase int he construction of the line. We're one step closer to the line's completion!
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| 17 November 2022 - Another view of the launch gantry on site, undergoing further fit out works. |
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| 17 November 2022 |
Typically, there are 2 types of launch gantries - underslung or overhead. The launch gantry in this contract is known as the overhead type. In this type of launch gantry, the main support comes from above where the segmental box girders and suspended below while construction work to erect the viaduct span is completed.
Underslung types, on the other hand, provide support from beneath the viaduct structure by allowing the box girders to sit on jacks rising up from the supporting gantry. In this type, there is often a moving crane that sits atop of the gantry structure to allow for positioning of the box girders into the appropriate positions.
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| 17 November 2022 - Support #1 |
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| 17 November 2022 - Support #2 |
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| 17 November 2022 - The expansion joint pier columns with the bases ready for bearing installation. |
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17 November 2022 - Towards Tengah Plantation station, some pier columns are being prepped with
form work for the casting of the pier crosshead that will support 2 trackways. |
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| 17 November 2022 |
Works to fit out the launch gantry are still on-going as is casting of piers to support the viaduct further north towards Tengah Plantation station. Do watch this space as we bring you further updates on the progress at this site.
This post is also available on Instagram.
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