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 project focuses on tunnels and bridges due to unbalanced excavation and filling, requiring borrowed soil and significant demolitions. With 10 bridges totaling 12.4km and a 3174m tunnel, the bridge-to-tunnel ratio is 43%. The Nairobi-Malaysia highway construction is planned in three phases, starting with the first 120 kilometers from CK0, commencing October 1, 2017. Kenya, located in East Africa, has a hot and humid coastal climate and milder plateau climate. With rainy seasons from March to June and October to December, divided into heavy and light rainy seasons, the annual precipitation is 300-1400mm and evaporation is 1450-2400mm. BPM composite geonet is needed for roadbed drainage and soft soil foundation reinforcement. A three-dimensional drainage net can be installed under the road base to prevent sand and gravel ingress, providing effective drainage and reinforcement. It can also be placed between the foundation and base for better 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
A three-dimensional drainage net can be set up under the road base to stop sand and gravel from entering the geonet. This provides effective drainage and reinforcement simultaneously. It can also be put in between the foundation and the base to enhance drainage. This versatile system offers multiple benefits. It is suitable for landfill and highway drainage, including roadbed and pavement. Furthermore, it aids in tunnel, underground, and retaining wall drainage. Additionally, it helps with soft soil foundation reinforcement.It is also suitable for garden and playground 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 100 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.
