Innovative Technologies
Building Trust
GARWARE – WALL ROPES LTD.
Geo-synthetics Division
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED

SOIL EROSION
 Soil erosion is a natural process which occurs due to detachment and movement of top soil by the action of wind and flowing water
 Natural turfing does not provide required superior performance
 Erosion control measures:
 Garmat ® on Slopes upto 45 º
 Geocell on Slopes upto 80 º
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED

GARMAT ®
• High performance product specially engineered as surface protection treatment for slopes
• Garmat ® is a composite geomat comprising a layer of biodegradable mulching material sandwiched between two layers of polymer netting
Garmat
®
Pre-cultivation on Garmat
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED
®

SPECIFICATIONS OF GARMAT ®
PROPERTY SPECIFICATION OF GARMAT
®
Top and bottom layers of polymer net
Material and structure
Aperture size
Tensile strength
UV Stability (Percent retention of tensile strength)
Polymer netting comprising tensile elements of circular cross-section in two orthogonal direction with knotless joint
25 (

4) mm x 25 (

4) mm
≥ 2.0 kN/m (in both directions)
≥ 80% (500 hours exposure)
Type of joint Firm Joint
Middle layer of bio-degradable mulch
Material
Weight
Thickness
Dimensions
Length
Width
Coir fibre
≥ 250 gms/m 2
≥ 6.5 mm
15 m (depending on site requirement)
5 m (minimum)
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED

ADVANTAGES OF GARMAT ®
• Promotes growth of vegetation by retaining moisture and conditioning the soil
• Root system interwined with the net binds and confines the soil
• Results in higher root density of grass cover upto (4500 kg/ha) compared to ordinary turfing (typically 1500 kg/ha)
• Mulch in the Garmat ® acts as porous filter to allow water while retaining soil
• Installation is simple and easier
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED

POND 1-HINDUSTAN ZINC LIMITED, VIZAG, A.P.
Garmat® Installed on Embankment Slopes
View of Jarosite Pond with Garmat® Installed on Embankment Slopes
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED

POND 2-HINDUSTAN ZINC LIMITED, VIZAG, A.P.
Garmat® Installed on Embankment Slopes
View of Jarosite Pond 2 with Garmat® Installed on Embankment
Slopes
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED

MINERAL ENTERPRISES LTD, CHITRADURGA
After installation of Garmat ® on embankment slopes
Growing of vegetation on embankment slopes
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED

MAHANADI COAL FIELDS, TALCHER, ORISSA
Before
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED
After

MAHANADI COAL FIELDS, TALCHER, ORISSA
Slope Surface Preparation for Installation of Garmat®
Garmat® Installed for Erosion control
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED

UDHAMPUR - MUKTHESWAR SECTION,
NORTHERN RAILWAY
Garmat® Installed on Slopes
After vegetation growth on slopes
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED

KUNDLI - MANESAR HIGHWAY, HARYANA
Rain cuts on slope – before installation of Garmat ®
Surface preparation in progress for
GWRL- An ISO 9001 2000 Company
®
Compaction of slopes in progress
© 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED

KUNDLI - MANESAR HIGHWAY, HARYANA
Installation of Garmat ® and soil placement in progress
After vegetation growth on embankment slope
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED

GRIL NH - 24, EXPRESSWAY PROJECT,
MORADABAD
Installation of Garmat ® in progress
After vegetation growth on embankment slope
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED

GEOCELL
 Geocell is a lightweight, expandable cellular confinement system which creates an erosion barrier or structural foundation
 Effective erosion control measure on steep slopes
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED

GEOCELL
 Fill materials:
- Soil (both cohesion and cohesionless)
- Aggregates
- Concrete
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED

APPLICATIONS OF GEOCELL
Erosion protection Slope Stabilization Retaining wall
Stream / channel protection Access Roads/Railroad Ballast
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED

APPLICATIONS OF GEOCELL
With GEOCELL Without GEOCELL
Erosion Control Embankment Protection (flood)
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED

SPECIFICATIONS OF GEOCELL
 Cell density (cells/m 2 ):
8.3, 12, 16.5, 21.7, 27.6, 34.3, 41.7
 Cell height (mm): 50, 75, 100, 150, 200
 Cell wall type: smooth, textured, perforated
 Colors: black, tan, green and others
 Perforations: percentages can be varied up to 16.5%
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED

Tiru Kulkarni
Vice President, Geosynthetics Division,
Garware-Wall Ropes Ltd.
Plot No. 11, Block D-1, M.I.D.C. Chinchwad, Pune- 411019, India.
Phone: + 91-20-30780000, 30780432
Fax: + 91-20-30780350.
Email : tkulkarni@garwareropes.com
geo@garwareropes.com
Website : www.garwareropes.com
GWRL- An ISO 9001 2000 Company © 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED