Drainage net product, also called Composite Geonet, is a two or three-layer three-dimensional drainage geosynthetic product which are often made with polypropylene PP or regenerated HDPE (geonet) and covered with double-sided thermally heat-bonded nonwoven geotextile on both sides or one side. drainage net is widely used for landfill, highway system drainage, road drainage, tunnel and retaining wall projects.
Case Study
The mileage of the first bid in Nairobi–Malaba Highway Project is DK2+000~DK38+000, the total length of the bid section is 36 kilometers, and the starting point is connected to the Nairobi South Station. DK2+000～DK2+750 pass through Nairobi National Park after cutting through the ICD, and then extend the north side of the park to the southwest, DK2+750～DK9+500 enter Nairobi National Park, then pass through residential areas and farmland, and go north into Ngong City. DK26+950~DK29+750 pass through the urban forest of Engong District, DK34+826~DK39+333 pass through the northern part of Engong Mountain by tunnel, and the end of the lot is at DK38+000.
The main works of this section are tunnels and bridges. The excavation and filling of the subgrade earth and stone is unbalanced, and the filling is mainly used, but the soil needs to be borrowed for filling, and some sections of the line passing through need to be demolished, and the demolition amount is relatively large. The total of 10 bridges is about 12.4km, and the first tunnel is 3174 meters (within the scope of my bidding section), and the bridge-to-tunnel ratio is 43%.
The construction of the Nairobi-Malaysia highway project is currently planned to be divided into three phases. The first phase of construction is from CK0 to 120 kilometers. It is planned to officially start on October 1, 2017, and the subsequent two phases will be launched in phases.
Kenya is located in the eastern part of Africa. The weather in the coastal areas is hot and humid, and the plateau climate is relatively mild. The rainy season is from March to June and from October to December every year, and the rest of the month is the dry season. The rainy season is divided into two parts: the heavy rainy season from April to June, and the light rainy season from October to November. The average annual precipitation is 300-1400mm, and the average annual evaporation is 1450-2400mm.so the project need BPM composite geonet for highway roadbed drainage and highway soft soil foundation reinforcement drainage . Three dimensional drainage net can be installed under the road base to prevent sand and gravel into geonet and provide effective drainage and reinforcement at the same time, it can also installed between the foundation and base to facilitate drainage
Specification of Composite Drainage Net Product for Highway Foundation Project in Nairobi
- Total composite drainage net quantity – 13000 square meters
- Each roll – 5mm of geonet and 200g of geotextile
- Container – 40hc *2
Composite Drainage Ne Features
- Share the feature of Geonet and Geotextile
- Good permeability
- Strong drainage ability
- High tensile strength
- High chemical resistance stability
- High friction coefficient
- Effectively keep sand and gravel particles out to maintain long-term stable drainage
- Good corrosion resistance, good acid and alkali resistance
- Long service life
- Easy deployment
Composite Geonet application
Three dimensional drainage net can be installed under the road base to prevent sand and gravel into geonet and provide effective drainage and reinforcement at the same time, it can also installed between the foundation and base to facilitate drainage,which can use for landfill drainage ,highway roadbed and pavement drainage, highway soft soil foundation reinforcement drainage, highway roadbed drainage, tunnel drainage, underground structure drainage, retaining wall drainage and graden and palygrounds drainage applications.
About BPM
BPM has been specializing in delivering one stop geosynthetics products and solutions to worldwide customers since its foundation in 2007. BPM had provided many types of effective and state of the art geomembranes, geotextiles, geocells, geosynthetic clay liners (GCLs), drainage boards, geogrids to over 81 countries. Our main customers are from Australia, France, Sweden, UK, Hong Kong, Hungary, New Zealand, Poland, Mexico, Ecuador, Brazil, Pakistan, Bangladesh, Thailand, Vietnam, Malaysia, Indonesia, Singapore, Philippines, Sri Lanka, India, UAE, Saudi Arabia, Qatar, Kenya, Ghana, Ethiopia, Somalia, Nigeria, South Africa, Swaziland, Mongolia, etc.
BPM is not only manufacturing best quality geosynthetic products but also providing professional design and installation service. OEM, ODM, custom development and fabrication are also available. If you have any questions or inquiries, please fill and submit the following form, we will reply as soon as possible.
