J106 - Boon Lay update Q3 2023

 

24 September 2023 - Aerial view of the southern half of the station.

Contract J106 has been bustling with work making significant progress over the past quarter. The station building is now becoming visible with the southern and northern halves using various pier support methods to keep the station elevated above Jurong West Street 64. Viaduct segment launching has also made significant progress with most spans installed. The only exception would be the spans that are supported by the movement & expansion joint piers. The installation of viaduct spans on these piers will require the use of trestles - a sort of frame that can hold the viaduct segments in place that is supported on the ground - and thus these spans are being left for the last parts of viaduct construction.

In total, the contract will need to see approximately 21 viaduct piers being built and connected to the viaduct spans. Of these 21 piers, approximately 19 have had their columns built or at least partially built by Q3 2023. Segment launching had either been completed or was in progress for 9 of these piers as well.

Over at the station building, work has been underway for the construction of the various station piers that would help to bear the load of the Jurong Region Line (JRL) station. On the northern half, the station is supported by portal piers which have columns on either side of Jurong West Street 64. This is in contrast to the support system on the southern half, which has station pier columns located in the road median and utilises crossheads to provide the station with the corresponding floor space needed.

15 July 2023 - A diagram indicating the location of relocated ATMs. Alterations to the existing
station can be seen in red, showing the location of a new staircase, escalator & lift.

Works for the station are not limited to the new station site either. Over at the existing East-West Line (EWL) station, some preparatory work has commenced for the reconfiguration ahead of connection with the new JRL station. Alterations will include replacing the existing staircase connecting the EWL concourse and platform with a new escalator. A set of replacement stairs will be built that will pop out at the platform level roughly where an existing atrium exists over some mechanical & electrical plant rooms. An additional lift will also be built as part of the EWL station's modification works.

With so much going on, here are the photos over the past quarter to bring you up to date with the progress made in Q3 2023.

15 July 2023 - Piers at the contract boundary with contract J105. The first two piers in the image
will be portal piers, with the second column foundation works underway.

15 July 2023 - A view of some of the completed spans along Jurong West Street 64.

15 July 2023 - A segment delivered to site for subsequent launching.

15 July 2023 - Launching works underway along Jurong West Street 64.

15 July 2023 - A view of the location of the launching works along Jurong West Street 64, roughly
between block 669 Multi-storey car park & block 685C.

15 July 2023 - Some hoarding for works at Boon Lay station.

15 July 2023 - White tape marking the outline of hoarding to be installed.

23 July 2023 - A view of the existing concourse area at the EWL station.

30 July 2023 - Some additions to the eastern end of the existing EWL station.

30 July 2023 - A view of the escalator & staircase landing on the eastern end of the EWL platform.

30 July 2023 - A view of completed viaduct spans along Jurong West Street 64.

30 July 2023 - Ongoing launching works with the lifting frames in position. Hanger beams are
in position on the subsequent pier to begin the launching process as well.

30 July 2023 - Foundation works for the pile cap of the second column of one of the portal piers
at the northern end of the contract site.

30 July 2023 - Sheet piles in place for excavation works.

30 July 2023

30 July 2023 - Installation of the framework that will support the form work for pier crosshead
casting. This is at the junction of Jurong West Central 3 & Jurong West Street 64.

30 July 2023 - A view of the works for viaduct piers before the station building.

30 July 2023 - A view of the existing staircase to the EWL platform. This will be replaced by a
new escalator with a new set of staircase being constructed in replacement.

30 July 2023 - The atrium will be where the new set of staircase emerges.

30 July 2023 - Hoarding at the eastern end of the station now in place.

6 August 2023 - A view of the western end of the existing EWL station.

6 August 2023 - A closer view shows the base of a pier for the JRL station partially cast.

6 August 2023 - A close up view of the cylindrical pier for the JRL station.

6 August 2023 - An aerial view of the southern half of the JRL station. Piers for the station and
viaduct can be seen.

6 August 2023 - Progress of viaduct construction along the northern
half of the contract site.

6 August 2023 - A view of the station site.

6 August 2023 - A viaduct pier just south of the JRL station seen from street level.

6 August 2023 - A close up view of the viaduct pier south of the JRL station. Part of the pier
for the JRL station can be seen as well.

6 August 2023 - The viaduct pier seen from the junction of Jurong West Streets 63 & 64.

6 August 2023

6 August 2023 - A view of the existing EWL viaducts & station.

6 August 2023 - Boon Lay JRL station work site.

6 August 2023 - Temporary Protective Enclosures enable trains to operate while construction
takes place around the viaducts. This prevents falling objects from interfering with train operation.

6 August 2023 - A close up view of viaduct construction at the
northern half of the contract site.

13 August 2023 - Pier crosshead casting underway.

13 August 2023 - A completed crosshead for one of the piers.

13 August 2023

13 August 2023 - A view of viaduct segment launching progress near the junction of Jurong West
Streets 64 & 65.

13 August 2023 - Ongoing construction of the portal piers second columns.

13 August 2023 - Rebar visible for the base of the second column.

13 August 2023 - A view of the rebar for the base of the second column seen from the junction.

13 August 2023 - Completed viaduct spans.

13 August 2023 - A view of the section just north of the station. Piers have yet to emerge here.

13 August 2023

27 August 2023 - An aerial view of the southern half of the station. Framework is being installed
around the viaduct pier in preparation for the installation of the precast segments of the pier
crosshead. Works are underway to cast the station crosshead for the transfer/mezzanine level.

27 August 2023 - A close up view of the work ongoing for the station crosshead.

27 August 2023 - A view northwards from the junction of Jurong West Streets 63 & 64 of the
ongoing construction of the northern half of the JRL station.

27 August 2023 - Some piers for both the station and viaduct have been cast.

27 August 2023 - A view of the southern viaduct pier.

27 August 2023 - A view of viaduct construction progress at the northern half of the contract site.
Hanger beams have been relocated to a new pier to kickstart the launching process.

31 August 2023 - Another completed viaduct pier crosshead. Segment launching works will follow
shortly thereafter.

31 August 2023 - Hanger beams relocated, first segments lifted and epoxy being applied.

31 August 2023 - A view south from the junction of Jurong West Central 3 and Street 64.

31 August 2023 - The first viaduct pier immediately north of the station has been completed.

31 August 2023 - Another view of ongoing work for the viaduct along Jurong West Street 64.

31 August 2023 - Pier crosshead casting works underway.

31 August 2023 - Completed spans at the junction with Jurong West Central 1.

31 August 2023 - Progress of launching work can be seen as the line curves slightly.

10 September 2023 - The first precast crosshead segment has been installed south of the JRL
station building.

10 September 2023 - A close up view of the first segment installed. In total, this pier's crosshead
will utilise 5 segments.

10 September 2023

10 September 2023 - A close up view of the work to cast the station crosshead.

10 September 2023 - A view of the progress of the viaduct piers to the south after the station. The
final pier along Jurong West Street 64 is the southern contract boundary with contract J111 of
phase 3.

10 September 2023 - A view of completed station piers at the northern half of the station site. Works
are beginning on the portal beams that will support the transfer/mezzanine level.

10 September 2023 - A view of the viaducts and piers to the north.

10 September 2023 - An aerial view of the entire JRL Boon Lay station site. The southern half
of the station features station piers in the road median, supporting the building with crossheads.
The northern half features portal station piers on either side of the street.

10 September 2023 - A view of foundation excavation for the pile cap.

10 September 2023 - Exposed bored piles for pile cap construction.

10 September 2023 - Rebar and a pier casted for one of the station exits. The rebar with form work present may be for the construction of the lift shaft.

10 September 2023 - A view of ongoing viaduct segment launching works between Jurong West
Central 1 & 3 junctions.

10 September 2023 - Work for the construction of a movement & expansion joint crosshead in
progress.

10 September 2023 - Lifting frames & hanger beams being used for viaduct segment launching.

10 September 2023 - A view of station pier construction as seen from
Jurong Point shopping mall.

10 September 2023 - One of the second columns has been cast for the 2 portal piers at the northern
end of the contract site.

10 September 2023 - The base of the second portal pier's second column can be seen rising as well.

10 September 2023 - Portal beam works for the JRL station.

10 September 2023

10 September 2023 - A view of the JRL station work site at the junction of Streets 63 & 64.

10 September 2023

16 September 2023 - The pier with the hanger beam has successfully installed the first segments.

16 September 2023 - Excavation works just north of the station for further viaduct piers.

16 September 2023 - A view southwards to the station site.

16 September 2023 - Scaffolding going up for work on the portal beam.

16 September 2023

16 September 2023 - Progress of the crosshead construction on the southern end.

24 September 2023 - A view of the prefabricated viaduct pier crosshead installation.

24 September 2023 - A total of 3 segments have been installed of a total of 5.

24 September 2023

24 September 2023 - A massive amount of scaffolding is required for the crosshead construction.

24 September 2023 - The last and southern-most viaduct pier of contract J106.

24 September 2023 - The metal pieces within the crosshead may support the roof structure.

24 September 2023

24 September 2023 - A close up view of the prefabricated viaduct pier crosshead with tensioning
cables being threaded through the ducts.

24 September 2023 - Portal beam works for the northern half of the station have progressed further.

24 September 2023 - A view of the hoarded up section at the EWL platform.

28 September 2023 - Portal beam works underway for the portal pier at the northern end of the site.

28 September 2023 - Epoxy being applied to the first segments launched from the pier.

28 September 2023 - Rebar becoming visible for the viaduct pier north of the station.

Do keep a lookout for our upcoming November snapshot feature which will bring you up to date on the latest developments over the entire JRL.

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