Geogrid as a soil reinforcement material

1. Geogrid as a soil reinforcement Introduction to Geosynthetic Materials

2. Introduction to Geosynthetic Materials • 1. Geotextiles • 2. Geomembranes • 3. Geogrids • 4. Geocomposite

3. Geotextiles

4. Geomembranes

5. Geogrids

6. Geocomposite

7. Geogrid Definition • Geogrid is a high-strength metal mesh that was developed to hold large quantities of concrete and require minimum post-casting metalwork. It gives the strength to hold the shape while being able to be easily installed.

8. Historical Development • Geogrid has been used since the 1950s as a foundation material for roads, railways, sports grounds and playgrounds. The size, strength and stability of the geogrid allow it to be used for any road or building with a load bearing capacity of up to 10 tonnes per metre squared (t/m2). Geogrid is also effective at reducing noise associated with heavy vehicles on roads.

9. Types of Geogrids • Uniaxial Geogrid • Biaxial Geogrid • Triaxial • Geogrid-Geotextile Composites

10. Geogrid Types Biaxial Geogrid Uniaxial geogrid Triaxial geogrid Geocomposite

11. Geometry of geogrid • The geometric shape of geogrid is that of a rectangle with width and length. It can be used for different purposes as roads, footpaths, and bridges as this material does not have any unwanted effects on the health of people who may walk on it or ride on it.

12. Materials Used in Geogrid Production • Polyester • Polyvinyl alcohol • Poly vinyl chloride • Poly propylene

13. Geogrid Testing • Geogrid rib tensile strenght test • Geogrid pull out test • Geogrid junction test • Geogrid chemical resistance test • Geogrid biochemical resistance test

14. Geogrid Testing Methods

15. Installations Guidelines • Material identification • Material handling • Geogrid placement • Placement of fill material

16. Functions of Geogrids • Fluid transmission • Filtration • Separation • Reinforcement

17. Geogrid Fluid transmission • A geogrid is a permeable synthetic material used in the reinforcement of soils. It is typically composed of polymers such as polypropylene or polyethylene and can be used to form walls, embankments, stabilization of roads and trails, retaining walls, and more. Geogrids enhance fluid transmission by increasing shear strength in the soil mass and decreasing stress both on individual particles and in the aggregate. This reduces potential liquefaction during an earthquake or other seismic event.

18. Geogrid as Filtration • Geogrid is an effective form of filtration that can capture suspended solids and debris. It works by allowing water to flow through a network of grids while preventing the solids and debris particles from passing through. This form of filtration is often used in the process of soil stabilisation, retaining walls, and paved surfaces to provide high-quality filtration. Geogrid has become a popular choice for many applications needing reliable long-term filtration efficiency performance.

19. Geogrid Separation • Geogrid Separation is a soil reinforcement technique used to separate two layers of soil. It involves installing a layer of geogrid between two layers of soil, which helps to create an interlocking system that helps reduce stress and gives additional strength and stability to the combined structure. This technique has been used in civil engineering applications for decades and is increasingly being used in the construction of foundations, roads, walls and other structures.

20. Geogrid as Reinforcement • A geogrid is a type of reinforcement that is used to strengthen soil and other material against compaction or movement. It is composed of polymer or fiberglass mesh that has been stretched out like a sheet or webbing, and then laid in or on top of a surface area such as soil. Geogrids are ideal for use in areas with poor soil conditions, providing stability and strength while also enhancing drainage capabilities.

21. Application of Geogrid • Retaining wall • Bridge railway abutments • Reinforced soil slopes • Reinforced foundation over piles • Reinforced embankments over soft foundation

22. Geogrid in Retaining Wall • Geogrid is a popular material for use in the construction of retaining walls. It is made up of a web of interlocked plastic fibers and commonly used as reinforcement to reinforce soil mass, decrease maintenance cost and increase service life. Geogrid can be used in both permanent structures and temporary systems and is easy to install, efficient and strong enough to support large loads. It is an excellent choice for use with various construction materials like brick, concrete, stone, timber or steel in retaining walls.

23. Bridge Railway Abutments • Geogrid bridge railway abutments are a type of structure that functions as a support for bridges and similar structures. They provide the necessary stability, strength and flexibility to the bridge, allowing it to span longer distances or handle heavier loads. Geogrid abutments are often made from reinforced concrete and feature a geogrid reinforcement layer that provides additional strength and flexibility. The use of geogrids in these types of structures offers an effective solution for creating strong, durable bridge foundations that can withstand shifting soil conditions due to environmental factors such as water erosion or earthquakes.

24. Reinforced Soil Slopes • Geogrid Reinforced Soil Slopes is a safe, unique and cost effective way to create a secure base for retaining walls, bollards, gates and walkways. Geogrid reinforced soil slopes are also used as underground retaining walls in construction sites.

25. Reinforced Foundation Over Piles • This reinforced foundation over piles fixing system is a cost effective and efficient way of creating a solid base for your home. The geogrid is made from a strong material, creating an effective foundation that is sure to support even the heaviest of loads. It provides excellent thermal insulation, as it acts as a safeguard against cold and damp in the winter months.

26. Reinforced Embankments Over soft Foundation • Geogrid Reinforced Embankments are a cost effective solution to protect your site from erosion and water run off. This product is made from high quality geogrids, combined with a heavy duty polymer base layer to create an impervious barrier that protects against water penetration and scour.

27. Geogrid Compared With Other Solutions • 1. Low-cost materials • 2. It accelerates construction • 3. Appropriate reinforcement is obtained • 4. Enhanced quality

28. Draw Backs: • 1. Possible geogrid damage • 2. Asymmetric geometry • 3. Insufficient code standardization

29. Conclusion: • 1. To effectively solve some problems of soil mass like, bearing capacity, failure of slopes, erosion control, land slip repair, roads quick construction, and for all other construction works geogrid is better solution • 2. Geogrids are magic materials to yield excellent results.