Client: National Parks Board (NParks)

Main Contractor: Swee Hong Engineering Construction Pte Limited

Project Details:

Infrastructure 2 & Main Garden Contract for Gardens By the Bay located at Marina South, Singapore is a modern garden ~ 101ha spread of forestry, botanical gardens, walking trails and waterway views designed by Grant Associates, a landscape architect based in United Kingdom.

With a green concept in mind, numerous reinforced earth walls with slope inclination of 45o to 60o and of height up to 7m together with some 90⁰ mechanically stabilized earth walls behind lightweight RC retaining walls were designed to allow plants and shrubs to be vegetated on these “Green Walls”.

Green Cosmos undertake the design of these mechanically stabilized earth walls using high strength reinforcement geogrids manufactured by Naue GmbH.

Some 200,000m2 of varying high strength uni-axial geogrids (80kN/m to 400kN/m) were supplied and field installed by Green Cosmos complete with the provision and erection of special formwork system.


Layout Plan on MSE Walls in various locations

Schematic details on MSE wall with wrap around facings

MSE wall under construction

Placement of high strength reinforcement geo-grid panels

Overlapped geo-grids are secured with plastic cable ties

Engineered fill placed to form thickness for each lift

Placement of vegetation soils on wrap around facing

Final compaction in progress

Geo-grid wrapped over vegetation soil ready for
construction of next lift

MSE wall with 70⁰ slopes nearing completion

Completed geogrids-reinforced MSE Wall with green facings

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