Client: Vietnam Waste Solutions, Inc.
Main Contractor: JPS Engineering & Construction Company Limited
Project Details:
Da Phuoc Integrated Waste Management Facility is located in Da Phuoc Commune, Binh Chanh District ~ south of Ho Chi Minh City, Vietnam.
Da Phuoc Phase 1 Sanitary Landfill with leachate collection, removal & treatment is designed by Vector Engineering Inc. basing on North American standards and receives up to 6,000 tons of domestic waste daily.
Green Cosmos jointly with our local partner JPS E&C constructed the entire 45ha landfill complete with soil improvement works (PVD), field installation of 1.5mm thick single-side textured HDPE liner and 30/30 kN biaxial geogrids, sub-drain & leachate collection system and uni-axial high strength geogrid reinforced embankment construction – all under strict CQA supervision by Vector Engineering, Inc.
Approximate Quantities
| Sub-drain sand : 400,000 cum PVD : 1,180,000 linm Sub-drain pipes : 3,800 linm Biaxial geogrid : 310,000 sqm |
Engineered Fill : 90,000 cum Biaxial geogrid : 310,000 sqm Strip drain : 67,000 linm |
HDPE Liner : 310,000 sqm LCRS Sand : 31,000 cum LCRS pipes : 17,000 linm |
Pictorials on Landfill Construction & Field Installation of Environmental Lining System:
Location |
Access by water |
Bridge construction |
Completed bridge |
Clearing of mangroves |
Pumping sand |
Sand pumped into place |
Prefabricated vertical drains |
Soft sand |
Machine bogged |
Timber platform |
Geogrid for worst areas |
PVDs |
Materials by barge |
Clamshells to unload |
Stacking geosynthetics |
Covering geosynthetics |
Geogrid and geotextile for embankments |
Geogrid around corner |
Spreading of Fill |
Compaction of fill |
Wet Season |
Cover for fill |
Cover for stockpiles |
Deploying earthfill cover |
Re-working of fill |
More re-working of fill |
Pumps and more pumps |
Drainage channels |
Density by sand replacement |
Sand cone |
Geogrid wrapping at toe |
Perforated pipes |
Butt welding pipes |
Trenching for sub-drain pipes |
Sub-drain pipe installation |
Clearing vegetation |
Biaxial geogrid and strip drains |
Stripdrain and PVD |
Sand cover |
Compaction of face |
Anchor trench |
Backfill anchor trench |
Subgrade preparation |
Deploy liner |
Deploy liner |
Cleaning for seams |
Seaming crew |
Seaming |
Air pressure testing |
Testing passed |
Leachate sand placement |
More leachate sand |
Leachate pipes |
Adapt local methods |
Leachate pipe installation |
Placement of waste |
And it all went without a hitch! |