GWRL- An ISO 9001 2000 Company© 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED Innovative Technologies Building Trust APPLICATIONS OF GEO-SYNTHETICS.

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Presentation transcript:

GWRL- An ISO Company© 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED Innovative Technologies Building Trust APPLICATIONS OF GEO-SYNTHETICS IN EROSION CONTROL GARWARE – WALL ROPES LTD. Geo-synthetics Division

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

GWRL- An ISO 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 Polymer netting comprising tensile elements of circular cross-section in two orthogonal direction with knotless joint Aperture size 25 (  4) mm x 25 (  4) mm Tensile strength≥ 2.0 kN/m (in both directions) UV Stability (Percent retention of tensile strength) ≥ 80% (500 hours exposure) Type of jointFirm Joint Middle layer of bio-degradable mulch MaterialCoir fibre Weight≥ 250 gms/m 2 Thickness≥ 6.5 mm Dimensions Length15 m (depending on site requirement) Width5 m (minimum)

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

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

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

GWRL- An ISO 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 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 installation of Garmat ® Watering in progress Compaction of slopes in progress

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

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

GWRL- An ISO Company© 2011 GARWARE-WALL ROPES LTD. ALL RIGHTS RESERVED With GEOCELLWithout GEOCELL APPLICATIONS OF GEOCELL Embankment Protection (flood) Erosion Control

GWRL- An ISO 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 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 , India. Phone: , Fax: Website : THANK YOU