soil stabilization using geosynthetic material

1. G.MADEGOWDA INSTITUTE OF TECHNOLOGY
DEPARTMENT OF CIVIL ENGINEERING
TECHNICAL SEMINAR ON
UNDER THE GUIDANCE OF
Prof. SANTHOSH M C
Assistant professor
Department of Civil Engineering
GMIT, Mandya.
“SOIL STABILIZATION USING GEOSYNTHETIC MATERIAL ’’
PRESENTED BY
KARTHIK K
4MG18CV022

2. CONTENTS
Introduction
Why we use Geosynthetics
Geosynthetics classification
Uses of Geosynthetics
Geosynthetics areas of application
Advantages of Geosynthetcs
Conclusion
Reference

3. INTRODUCTION
• Geosynthetics are materials made from various types of polymers, used with
geological materials like soil, rock etc. to enhance, improve or modify the
behaviour of various civil engineering works.
• Geosynthetics are available in a wide range of forms and materials, each to
suit a slightly different use.
• These products have a wide range of applications and are currently used in
many geotechnical, transportation, hydraulic, and private development
applications

4. 1. For improving ground stabilization.
2. Pavements: Roads, Parking Bays, Runways(for bearing vehicle loads).
3. Heavy duty pavements: Ports and Harbours.
4. For railways.
5. For erosion control.
6. For retaining wall and bridge abutment.
7. And most important for building foundation improvements.
WHY WE USE GEOSYNTHETICS

5. GEOSYNTHETICS CLASSIFIED
AS FOLLOWS
1. Geotextiles
2. Geogrids
3. Geonets
4. Geomembranes
5. Geosynthetic clay liner
6. Geopipe
7. Geofoam
8. Geocomposites

6. Geotextiles are permeable fabrics which
when used in association with soil, have the
ability to separate, filter, reinforce, protect,
or drain.
1.GEO-TEXTILE:
A Geogrid is geosynthetic material used to
reinforce soils and similar materials. Geogrids
are commonly used to reinforce retaining walls.
2.GEO-GRIDS

7. Geonets are also planar products. Consists of
ribs in two directions. Apertures are of
diamond shape. Thickness is larger than that of
geogrids. Are also known as "geospacers".
Geonets are made of stacked material.
3.GEO-NETS
A Geomembrane is very low permeability
synthetic membrane barrier used to
control fluid or gas migration in a
structure.
4.GEOMEMBRANES

8. It is a woven fabric-like material, combination
of geotextiles and geomembranes used as a
barrier for liquid or solid waste.
5. Geosynthetic clay liner 4.Geo pipe
An advanced form of the polymer pipes
widely used in roadway and soil
stabilization techniques for drainage.

9. Geofoam is manufactured into large
lightweight blocks by polymeric expansion
process. They are large but extremely light
materials with gas filled cells.
7.Geofoams
These are combination of two different types
of geosynthetics to take advantage of each
This is prepared to extract all the major
properties of the geosynthetics into a single
unit with minimum cost.
8. Geocomposites

10. Retaining walls are structures designed to restrain soil to unnatural slopes.
Use of Geosynthetics in Earth Retention
Techniques- Retaining Walls

11.  In Roads and Pavements:
- Subgrade separation and Stabilization,
- Overlay Stress Absorption and Reinforcement.
 In Subsurface Drainage:
- Subgrade dewatering,
- Road base drainage,
- Structure drainage.
 In Erosion and Sediment Control:
- Hard Armor Systems, Silt Fence.
 In Reinforced Soil Systems:
- Embankments over soft foundations,
- Reinforced Steepened slopes,
- Reinforced soil walls.
GEOSYNTHETICS AREAS OF APPLICATION

12. 1. Cheaper in product cost, transport and installation.
2. Can be installed quickly with flexibility to construct during short period.
3. Consistent over a wide range of soils.
4. Space Savings.
5. Material Quality Control - More homogeneous than soil and aggregates.
6. Better Construction Quality Control at site.
7. Easy Material Deployment.
8. Less Environmentally Sensitive.
9. Improved performance and extended life.
10. Increased safety factor.
Advantages of Geo-synthetics

13. CONCLUSION
1. When soil reinforced with geosynthetics it develop into stronger and stiffer
than soil without reinforcement.
2. The use of geosynthetics will become increasingly routine, and that
geosynthetics will be the standard material of choice for several applications.
3. It can be used in environmental engineering for landfill projects.

14. REFERENCES
1. Ayush Mittal, Shalinee Shukla “GEOTEXTILE: AN OVERVIEW”.
2. Dr. Dilipkumartalukdar. A study of correlation between california bearing ratio
(cbr) value with other properties of soil. International journal of emerging
technology and advanced engineering issn 2250-2459, iso 9001:2008 certified
journal, volume 4, issue 1, january 2014.
3. Er. D kumarchoudhary. A detailed study of cbr method for flexible pavement
design int. Journal of engineering research and applications issn : 2248-9622, vol.
4, issue 6( version 5), june 2014, pp.239-253.
4. H. P. Singh M. Bagra. Improvement in cbr value of soil Reinforced with jute
fiber.International journal of innovative research in science, Engineering and
technologyVol. 2, issue 8, august 2013.
5. Mihai iliescu, ioanratiu. Soft soil geogrid reinforcement impact on bearing
capacity values. Actatechnicanapocensis: civil engineering & architecture vol. 55,
no. 3(2012).

15. THANK YOU