JAC Project Jatibaru, JAKARTA
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The JAC Jatibaru Project represents a mixed-use development strategically located in Jakarta’s bustling urban core. This project consists of two distinct yet complementary structures: a soaring 38-story office tower set atop a 10-level split-level car park and a dynamic 7-story retail building both sitting on a 3-level basement.
The office tower, reaching a height of over 200 meters, features a top-floor helipad and state-of-the-art facilities, catering to high-end tenants and businesses. Designed with the future in mind, the retail space incorporates an innovative semi-outdoor green area, offering accessible terraced roofs to create a vibrant entertainment, dining, and shopping experience.
Davy Sukamta & Partners has been appointed as the structural and geotechnical engineer for this landmark development. The integration of services in both disciplines led to a collaborative design approach, particularly in overcoming the site’s challenging conditions.
Given the extremely very soft soil conditions encountered down to a depth of 28 meters from the surface, our team implemented a comprehensive secant pile retaining wall system to ensure stability throughout the excavation phase. This system features 1180mm diameter piles with full casing, providing exceptional strength and support for the deep excavation required. The use of top-down construction methods further optimizes the excavation and basement construction process, ensuring the timely and efficient delivery of this complex project.
Additionally, to support the building’s substantial load, the foundation system includes 1.5-meter diameter bored piles reaching depths of 80 meters, executed using the post-grouting method for enhancing skin friction. The effectiveness of shaft grouting in enhancing pile capacity has already been verified through axial load tests. Currently, secant pile and bored pile works are in progress.


Architect:
Piling Contractor:
PT. Airmas Asri
PT. Bauer Pratama Indonesia
