oppurtunities in indian infrastructure with...
TRANSCRIPT
Engineered Solution Provider in Geosynthetics
By
M. VENKATARAMAN, Advisor, GWRL
OPPURTUNITIES IN INDIAN INFRASTRUCTURE
WITH GEOSYNTHETICS
M.Venkataraman, GWRL.
NEW CHALLENGES
In recent years, while providing a solution, the
Engineer has to face increased challenges:
Various site constraints like space, alignments etc.
Tight time schedules
Ensure max. usage of local resources (Material &
Manpower), hence Cost effective!!
Least environment impact
Long term performance & higher Cost benefit ratio over
a larger period of time (Least maintenance cost)
M.Venkataraman, GWRL.
SOLUTION !!!
USE OF APPROPRIATE GEOSYNTHETIC
MATERIALS OFFERS THE POSSIBILITY TO
SOLVE OR DRASTICALLY REDUCE THE
PROBLEMS
M.Venkataraman, GWRL.
Geosynthetics – a planar product manufactured
from polymeric materials used with rock, earth,
or other geotechnical engineering related
material as an integral part of a human-made
project, structure, or system.
INTRODUCTION TO GEOSYNTHETICS
M.Venkataraman, GWRL.
GEOSYNTHETICS
GEOSYNTHETICSCONCRETE & STEEL
M.Venkataraman, GWRL.
• Separation
• Filtration
• Reinforcement
• Drainage
• Containment
FUNCTIONS OF GEOSYNTHETICS
M.Venkataraman, GWRL.
Geogrids (Uniaxial &Biaxial)
GeotextilesWoven
Geosynthetic
Clay Liners
Nonwoven
GeomembranesGeonet
OUR PRODUCT RANGE
M.Venkataraman, GWRL.
GabionsSteel Wire Polymer Rope
Boulder NetGARMAT
PVD
Anco Drain
OUR PRODUCT RANGE
M.Venkataraman, GWRL.
GEOSYNTHETICS DIVN.
ENV.PROTECTION INFRASTRUCTURE
LANDFILL ENGINEERING
COASTAL PROTECTION
ROCKFALL PROTECTION
ROADS
RAILWAYS
GROUND
IMPROVEMENT
CANAL LINING
FLOOD CONTROL
OUR KEY SECTORS
M.Venkataraman, GWRL.
PRODUCTS & THEIR
APPLICATIONS
M.Venkataraman, GWRL.
PRODUCT & APPLICATION
• Steel Wire Gabions and Mattresses
Form a variety of Monolithic Structures when filled with
boulders.
Find application as Retaining walls, Erosion and scour
protection works, Hydraulic / Coastal structures for River
and Channel Protection like Weirs, Check Dams,
Groynes, etc.
• PP Rope Gabions and Mattresses
Collapsible Sausages used in Underwater Applications to
form structures like breakwaters, seawalls, groynes, and
aprons.
M.Venkataraman, GWRL.
• Steel Wire Rope Nets
– Rockfall Protection System used on high cuttings.
• Woven Multifilament Geotextiles
– Used as Separator and filter in roads and railways.
– Used as reinforcement in Ground Improvement and
Reinforced Slopes.
– Made into Geotextile Tubes, Containers and Bags for use in
shore and bank protection works as groynes, breakwaters, sea
walls, etc.
• Geomat (Mulch mat)
– Promotes micro-reinforced vegetation and effectively
controls erosion of top soil.
PRODUCT & APPLICATION
M.Venkataraman, GWRL.
• Uniaxial Geogrids
– Characterized by High Strength at low strain along the
principal direction; Used in Reinforced soil structures.
• Biaxial Geogrids
– Structural performance by interlocking mechanism;
Possess high aperture stability and junction strength;
Used in ground stabilization, pavements and trackbed
stabilization.
• Nonwoven Geotextiles
– Used as drainage layer, geomembrane protection layer
and filter.
PRODUCT & APPLICATION
M.Venkataraman, GWRL.
• HDPE Geomembranes
– Impermeable sheets used as barriers to liquid and vapors;
Finds application in landfills, canal lining, reservoir
lining, gypsum pond lining, etc.
• Geosynthetic Clay Liners
– Consists of a continuous layer of natural sodium
bentonite powder, sandwiched between geotextiles; Acts
as hydraulic barrier.
• Geonets
– Net like structure exclusively used for their in-plane
drainage function.
PRODUCT & APPLICATION
M.Venkataraman, GWRL.
Woven Geotextile - Separator (Thane, Mumbai)
WOVEN GEOTEXTILES
Geogrid Wraparound Wall at CH. 48 KM & CH. 50 KM,
Lucknow - Muzaffarpur National Highway Project
Filter - Woven geotextiles
M.Venkataraman, GWRL.
Separator - Approach Embankment for Bridge across
Vasista, Godavari at Chinchinada, A.P. (N H 5A)3
Reinforcement, Vishakapatnam Airport, Andhra Pradesh
WOVEN GEOTEXTILES
M.Venkataraman, GWRL.
GEOTEXTILE TUBE - SHORE PROTECTION
Geotextile Tube
HWL
Geotextile Bags
Woven
Geotextile
Shore Protection Works :
Shankarpur to Halda, West Bengal, India
WOVEN GEOTEXTILES
Filter Material
Geotextile Bags – Toe Protection
Geotextile Tube
Geotextile Bags
Geotextile Tube
After installation - During High Tide
M.Venkataraman, GWRL.
NONWOVEN GEOTEXTILES
Protection Layer,
Doodhganga Canal Project,
Kolhapur, Maharashtra
Lining of Dry Gypsum Pond, Coromandal Fertilizers Ltd.,
Vishakapatnam
M.Venkataraman, GWRL.
NONWOVEN GEOTEXTILES
Protection Layer in Landfills, HZL, Visakhapatnam, A.P
M.Venkataraman, GWRL.
Tensar® Geogrid Reinforced Soil Wall System at CSEB,
– Inner Side View, towards deck slab (Korba, India)
UNIAXIAL GEOGRIDS
RS Wall with Gabion Facia and Geogrid as
reinforcement at Bellary, Karnataka)
M.Venkataraman, GWRL.
Geogrid Wraparound Wall at CH. 48 KM & CH. 50 KM,
Lucknow - Muzaffarpur National Highway Project
UNIAXIAL GEOGRIDS
M.Venkataraman, GWRL.
Installation of Tensar SSLA30 Biaxial Geogrid
at ballast level (Kazipet-Ballarshah section,,
South Central Railway)
Subgrade Stabilization using Tensar Biaxial Geogrids
Talasari - Udhava Major Dist. Road, PWD, Maharashtra
BIAXIAL GEOGRIDS
M.Venkataraman, GWRL.
BIAXIAL GEOGRIDS
Ground Improvement for Tank Foundation,
HPCL, Mundra, Gujarat
M.Venkataraman, GWRL.
Reservoir Lining, Finolex Industries,
Maharashtra
Doodhganga Canal Project
(Kolhapur, Maharashtra)
HDPE GEOMEMBRANE
Lining of Dry Gypsum Pond, Coromandal Fertilizers Ltd.,
Vishakapatnam
M.Venkataraman, GWRL.
HDPE GEOMEMBRANE
Landfill, HZL
Visakhapatnam, A.P
PCMC Landfill, Pune
M.Venkataraman, GWRL.
Shore Erosion - Swaminarayan Temple, Gujarat, India
POLYMER ROPE GABIONS
Groynes - Varsoli Creek, Alibaug, Maharashtra
M.Venkataraman, GWRL.
POLYMER ROPE GABIONS
Revetment - Anti Erosion Sea Bund
Morbhagwa, Gujarat, India
Narmada Bank Protection Works, Madhi, Gujarat
M.Venkataraman, GWRL.
Reinforced Soil System with Gabion Facia, MRPL, Mangalore
Gabion
Facia
GarmatTM
Reinforced
Soil
STEEL GABIONS
Gabion Retaining Wall – Lavasa
Slope Retention works at Sakleshpur – Subhramanya Road
Section, South Western Railways, Mysore Division
M.Venkataraman, GWRL.
STEEL GABIONS
Abutment Protection Works, JJKR
Section & DKB Line, East Coast Railways
Bridge Abutment, Central Railways, Mumbai Division
Toe Protection Works – Central Railways
M.Venkataraman, GWRL.
Flood Protection Works, Mula River, Pune
Tapi River Bank Protection under Construction
using Steel Gabions, Barimata, Surat, Gujarat)
Bank Protection, Gujarat
STEEL GABIONS
M.Venkataraman, GWRL.
Jetty, Gujarat
Gabion Mattresses in Revetments, HCC Teesta
STEEL GABIONS
M.Venkataraman, GWRL.
GarmatTM Erosion Control Mat
(HZL, Vishakapatnam, Andhra Pradesh)
GARMATTM
GarmatTM Erosion Control Mat
(Mahanadi Coal Fields, Talcher, Orissa)
Before After
M.Venkataraman, GWRL.
MRPL, Mangalore
ANCO DRAIN
Anco Drain
Anco Drain
M.Venkataraman, GWRL.
TECHNICAL SPECIFICATIONS
Properties :
Polymer Composition, Structure & Physical
Properties
Mechanical Properties
Hydraulic Properties
Survivability
Installation Practices
UV Resistance
M.Venkataraman, GWRL.
TECHNICAL SPECIFICATIONS
Present Scenario:
• For any application, the technical specification
includes all the properties irrespective of the
function to be satisfied
It is significant to specify the properties essential for
the function
Eg: For Reinforcement application
It is more relevant to specify long-term strength and
strength at 2% and 5% strain rather than Ultimate
Strength
M.Venkataraman, GWRL.
TECHNICAL SPECIFICATIONS
Dictates the exact materials and processes to be
used in a project
No guarantee that the best available product is
delivered
They focus on the Process and not on the Final
Output (Performance)
M.Venkataraman, GWRL.
FUNCTIONS PROPERTIES
Separation AOS
Filtration AOS & Permittivity
Drainage AOS & In-Plane Permeability
ReinforcementTensile Strength,
Secant Modulus
TECHNICAL SPECIFICATIONS
Properties Influencing Effective
Performance of the Product
M.Venkataraman, GWRL.
GEOGRIDS IN PAVEMENTS
• Mechanism of Working
– Lateral Restraint thro’ Better Confinement
and Interlocking
M.Venkataraman, GWRL.
GEOGRIDS IN PAVEMENTS
• Properties Influencing Effective Performance
of the Product
Rib Thickness & Shape
Aperture Size & Shape
M.Venkataraman, GWRL.
GEOGRIDS IN PAVEMENTS
• Properties Influencing Effective Performance
of the Product
Junction Strength &
Rigidity Junction Efficiency
• Aperture Rigidity
• Radial Stiffness
• Secant Modulus
M.Venkataraman, GWRL.
Performance specifications describe how the finished
product should perform over time
It is the bridge between design, construction quality,
and long-term product performance
Specifications that use quantified quality
characteristics and life cycle cost relationships
correlated to product performance.
PERFORMANCE RELATED
SPECIFICATIONS (PRS)
M.Venkataraman, GWRL.
Performance Parameters
– Depends on the Product and the application
Governing Factors
End Result Elements:
- Bearing capacity, stability, settlements,
cracking, etc.,
Functional Requirements:
- Smoothness, friction, etc.,
PERFORMANCE RELATED
SPECIFICATIONS (PRS)
M.Venkataraman, GWRL.
• Critical Quality Characteristics
– Measurable and tied to product performance
• Prediction Tools (modelling and databases)
– Verified, calibrated, validated, and made
appropriate for local conditions
• Life Cycle Cost Analyses (LCCA)
– To compare the as-designed product section to
the as-built section
PERFORMANCE RELATED
SPECIFICATIONS
Fundamental Requirements:
M.Venkataraman, GWRL.
Improved link between Design and Construction
Improved and focused testing on characteristicsrelated to performance
Promoting best practices to improve quality
Improving Flexibility, Efficiency and Value of thesystem
Benefits
PERFORMANCE RELATED
SPECIFICATIONS
M.Venkataraman, GWRL.
Adding private sector innovation
Allow contractors more freedom to implement their
own procedures, choose their own equipment, and
conduct site-specific process control programs
Transferring risk away from the owner
PERFORMANCE RELATED
SPECIFICATIONS
Benefits
M.Venkataraman, GWRL.
Determining good performance criteria and measures
Potential impacts to contractors performance bonds
A drastic change in corporate culture
Openness and Trust
Change of Industry mind set
Focus on solution rather services
Delivery driven by value not cost
PERFORMANCE RELATED
SPECIFICATIONS
Barriers
M.Venkataraman, GWRL.
Premier Institutes and Agencies implementing PRS
• FHWA
• AASHTO
• European Union
• UK
• DOT, California (Caltrans)
Winconsin, DOT experienced 36% improvement in
highway ride quality & 10% savings in LCC using
PRS in Pavements
WORLDWIDE SCENARIO
M.Venkataraman, GWRL.
ROAD MAP TO THE FUTURE
VISION
Better translation of design and performance
requirements into specifications
MISSION
Establish Performance Related Specifications
M.Venkataraman, GWRL.
ROAD MAP TO THE FUTURE
GOALS
Identify relationships that link design and
construction with product performance
Develop and Implement Performance
Specifications
Freedom to innovate with accountability
to deliver
DRIVING FORCE
M.Venkataraman, GWRL.
REFERENCES
Performance Specifications Strategic Road Map, 2004
http://www.fhwa.dot.gov/construction/pssr04tc.cfm
Developing Performance Specifications -
Consultation response analysis report, January 2004
http://www.highways.gov.uk/roads/3060.aspx
M.Venkataraman, GWRL.
REFERENCES
INF02 Adopt Performance and Warranty
Specifications to Improve the Quality of Highway
Construction
http://cpr.ca.gov/CPR_Report/Issues_and_Recommend
ations/Chapter_4_Infrastructure/INF02.html
M.Venkataraman, GWRL.
M.VenkataramanAdvisor, Geosynthetics Division,
Garware-Wall Ropes Ltd.Plot No. 11, Block D-1, M.I.D.C. Chinchwad, Pune- 411019, India.
Phone: + 91-20-30780000, 30780150
Fax: + 91-20-30780350.
Email : [email protected]
Website : www.garwareropes.com
THANK YOU