Mass Rapid Transit (MRT) Downtown Line Stage II Train Depot – Singapore

To provide long-term erosion control by use of slope stabilisation to stabilize and protect the immense slopes totalling about 163,000 m² at the Depot site.

Slopes to be stabilized, divided into tiers (up to 4 tiers on some slopes) and sections, were excavated, compacted and covered with a layer of geotextile. VersiWeb panels were then installed over the geotextile and held secure over the sloping ground with J-peg anchors at regular intervals. VersiWeb uniformly distributes weight-bearing load and resists downward and lateral pressure and movement. Drainage between cells is facilitated by perforations on the cell walls which also prevent the build-up of hydrostatic pressure. The large perforations also allow unrestricted grass runner and root growth. Erosion is controlled by restricting movement of infill within the individual honeycombed cells. The cells are filled with planting soil and the stabilized slopes planted over with a carpet of grass.

Capella Hotel, Sentosa – Singapore

To provide slope stabilisation to stabilize and protect numerous slopes throughout the hotel grounds.

Slopes to be stabilized were compacted and VersiWeb installed over a layer of geotextile using J-peg anchors and individual abutting panels secured by steel wires. VersiWeb conforms to the various terrain profiles of each individual slope and uniformly distributes weight-bearing loads. Perforations on the web walls facilitate and enhance drainage preventing build-up of hydrostatic pressure and erosion is controlled by restricting movement of infill within each cell. Planting soil was installed and the slopes planted with various landscape plants forming a lush multi-level landscaped garden in the hotel grounds.

Private residence at Bishopsgate – Singapore

To provide a slope stabilisation to stabilize and protect steep slopes of between 40^o and 70^o fronting the residential house.

The steep slopes were compacted and covered with geotextile. 4 consecutive layers of VersiWeb were installed on the steep 70^o slope. VersiWeb panels were anchored onto the slope at appropriate intervals with J-pegs with longer 5-foot J-pegs used to secure the apex. Individual panels were secured together with steel wires where they abut. Each individual layer was covered with infill and compacted before installing the next. Installed in layers VersiWeb forms an integrated structural mass that resists downward and lateral pressure and movement. A final layer of VersiWeb panels were installed over the entire slope encompassing both the 70^o side and 40^o front slopes. Planting soil was then installed and carpet grass planted on the stabilized slopes.

Minter Ellison Building – Canberra ACT Australia

To provide efficient high compressive strength drainage on a high retaining basement walls.

VersiCell protected the waterproofing membrane on large basement walls, easily withstood high back-filling loads and provides efficient drainage on basement and retaining walls.

Private Residence at Ocean Drive, Sentosa, Singapore

To provide low-height support for marble pavers to form a narrow skirting around the perimeter of a landscape roof and beside perimeter planter boxes.

VersiPave GP paver supports have individually adjustable chocks in each quadrant which are employed to ensure a secure level paved surface. To enable VersiPave GP to be placed against the sides, they are halfed by breaking along the middle quadrant line. The raised pavers facilitate rapid drainage and eliminate problems associated with efflorescence as well as the need for heavy bedding sand or cement screed. The paved skirting allows easy maintenance access to the planter boxes on the sides of the building and perimeter of the landscape roof.

Burger Retirement Centre, Randwick – NSW Australia

To provide paver support for more than 1,000m² of decks, balconies and courtyards above underground parking areas of the retirement centre.

VersiPave GP paver supports eliminate the use of heavy bedding sand and thereby minimise load bearing on the building structure above the underground car park. Pavers supported by VersiPave GP hide services, reduce heat and sound transmission, allow easy access to waterproofing membranes when required and eliminate formation of efflorescence. Individually adjustable chocks on each quadrant of VersiPave GP ensure that paved surfaces are level. VersiPave 10 & 30mm Extenders were used to compensate for falls to drainage outlets whilst quick and efficient drainage of water from the paved areas is facilitated by the 4mm spacing between pavers.

Re-furbished Hilton Hotel – Sydney NSW Australia

To provide low height paver support for the paving of pedestrian walkways and podium decks of the Hotel.

VersiPave GP lightweight paver supports eliminate the use of heavy bedding sand and provide an air gap between the floor slab and the pavers which serves as effective heat and sound insulation. The capillary break afforded prevents dissolved salts and minerals from migrating to the paver surface to form efflorescence and encourage algae growth. Integrated chocks on each quadrant of VersiPave GP, individually adjustable, were used to adjust for any variation in paver thickness and ensure that the paved surfaces are level. Spacing gaps between the pavers facilitate quick and efficient drainage and help to keep the paver surfaces dry.

Greenslopes Hospital – Brisbane Australia

To provide low height support for pavers and facilitate quick drainage over the extensive roof areas of the hospital.

VersiPave GP paver supports eliminate the use of heavy bedding sand on the roof areas, allow easy access to the waterproofing membrane and facilitate rapid drainage of water from the paved areas. Each VersiPave GP has individually adjustable integrated chocks which are used to ensure that paved surfaces are uniform and level. The air gap created beneath the pavers provide heat and sound insulation, hide service miscellaneous services and also serves as a capillary break which prevents dissolved salts and minerals from migrating to the paver surface and form unsightly efflorescence.

Republic Polytechnic, Singapore

To provide waterproofing membrane protection and efficient sub-soil drainage under the landscaped roof areas on the 20ha site of the campus.

VersiCell lightweight interlocking modules, positioned over the waterproofing membrane, offers immediate protection for the membrane whilst other installation works were carried out. High compressive strength of the modules made it possible for light machinery to be placed on top without compromising the membrane below. A geotextile filter fabric is installed over the VersiCell and planting soil placed on top. The drainage cells provide the necessary cavity beneath the planted areas to efficiently discharge excess sub-soil water and prevent water-logging on the landscape roof. The resultant lush greenery on the campus grounds has earned the Polytechnic the nickname of “Campus in the Park”.

HDB Car Park – Holland Drive, Singapore

To facilitate planting on the RC rooftop of the Car Park to provide a Green Roof both attractive and effective in reducing urban heat island effect.

VersiDrain 25P drainage and water retention trays were installed over the waterproofing membrane. Geotextile filter fabric was then laid over the VersiDrain 25P and a lightweight inorganic planting media, EnviroMix GR, positioned on top followed by in-situ planting of various colourful drought tolerant plant species arranged in attractive patterns. Water retained by the trays during wet periods is returned to the planting media by capillary action during dry spells and drawn upon by the plants to sustain vigorous and healthy growth.