engineered solution provider in geosynthetics by m. venkataraman standardization of specifications...

Engineered Solution Provider in Geosynthetics

By

M. VENKATARAMAN

STANDARDIZATION OF SPECIFICATIONS – INDIAN AND GLOBAL PERSPECTIVE

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)


SOLUTION !!!

USE OF APPROPRIATE GEOSYNTHETIC MATERIALS OFFERS THE POSSIBILITY TO

SOLVE OR DRASTICALLY REDUCE THE PROBLEMS


GEOSYNTHETICS

GEOSYNTHETICSCONCRETE & STEEL


• Separation

• Filtration

• Reinforcement

• Drainage

• Containment

FUNCTIONS OF GEOSYNTHETICS


Geogrids (Uniaxial &Biaxial)

GeotextilesWoven

Geosynthetic Clay Liners

Nonwoven

GeomembranesGeonet

OUR PRODUCT RANGE


GabionsSteel Wire Polymer Rope

Boulder NetGARMAT

PVD

Anco Drain

OUR PRODUCT RANGE


GEOSYNTHETICS DIVN.

ENV.PROTECTION INFRASTRUCTURE

LANDFILL ENGINEERING

COASTAL PROTECTION

ROCKFALL PROTECTION

ROADS

RAILWAYS

GROUND IMPROVEMENT

CANAL LINING

FLOOD CONTROL

OUR KEY SECTORS


PRODUCTS & THEIR

APPLICATIONS


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


Separator - Approach Embankment for Bridge across Vasista, Godavari at Chinchinada, A.P. (N H 5A)3

Reinforcement, Vishakapatnam Airport, Andhra Pradesh

WOVEN GEOTEXTILES


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 ProtectionGeotextile Tube

Geotextile Bags

Geotextile Tube

After installation - During High Tide


NONWOVEN GEOTEXTILES

Protection Layer,Doodhganga Canal Project, Kolhapur, Maharashtra

Lining of Dry Gypsum Pond, Coromandal Fertilizers Ltd.,Vishakapatnam


NONWOVEN GEOTEXTILES

Protection Layer in Landfills, HZL, Visakhapatnam, A.P


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)


Geogrid Wraparound Wall at CH. 48 KM & CH. 50 KM,Lucknow - Muzaffarpur National Highway Project

UNIAXIAL GEOGRIDS


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


BIAXIAL GEOGRIDS

Ground Improvement for Tank Foundation, HPCL, Mundra, Gujarat


Reservoir Lining, Finolex Industries, Maharashtra

Doodhganga Canal Project (Kolhapur, Maharashtra)

HDPE GEOMEMBRANE

Lining of Dry Gypsum Pond, Coromandal Fertilizers Ltd.,Vishakapatnam


HDPE GEOMEMBRANE

Landfill, HZL Visakhapatnam, A.P

PCMC Landfill, Pune


Shore Erosion - Swaminarayan Temple, Gujarat, India

POLYMER ROPE GABIONS

Groynes - Varsoli Creek, Alibaug, Maharashtra


POLYMER ROPE GABIONS

Revetment - Anti Erosion Sea BundMorbhagwa, Gujarat, India

Narmada Bank Protection Works, Madhi, Gujarat


Reinforced Soil System with Gabion Facia, MRPL, Mangalore

Gabion Facia

GarmatTM

ReinforcedSoil

STEEL GABIONS

Gabion Retaining Wall – Lavasa

Slope Retention works at Sakleshpur – Subhramanya Road Section, South Western Railways, Mysore Division


GarmatTM Erosion Control Mat (HZL, Vishakapatnam, Andhra Pradesh)

GARMATTM

GarmatTM Erosion Control Mat (Mahanadi Coal Fields, Talcher, Orissa)

Before After


MRPL, Mangalore

ANCO DRAIN

Anco Drain

Anco Drain


TECHNICAL SPECIFICATIONS

Properties :

Polymer Composition, Structure & Physical

Properties

Mechanical Properties

Hydraulic Properties

Survivability

Installation Practices

UV Resistance



Present Scenario:• For any application, the technical specification

includes all the properties as mandatory requirements irrespective of the function to be satisfied

It is significant to specify the properties critical for the function

Reinforcement - 1

Reinforcement - 2

Strain (%)

Load(kN/m)

2 5

Eg: Reinforcement application

It is more relevant to specify long-term strength & strength at 2% and 5% strain rather than Ultimate Strength




Dictates the exact materials to be used in a project

No guarantee that the best available product is delivered

They focus on the Specifications and not on the Final Output (Performance)


Aspects :-

Application

Function

Product

STANDARDIZATION OF SPECIFICATIONS

Primary - Main Properties

Specifications

Secondary - Min. Properties

Any product which satisfies the Primary and Secondary specifications can be selected


Eg: As per IRC:SP:59-2002 :-

Separation &Filtration functions (unsaturated soils)

AOS = 0.6 mm, Max. Value Permittivity = 0.02 Sec-1,

Min. Value

Subsequently, specifies minimum strength requirements (Type I, II and III) for a geotextile depending on Installation Damage

Any geotextile with satisfies the criteria can be selected

STANDARDIZATION OF SPECIFICATIONS


Application Functions Products Main Properties

Roads, Retaining

Walls

Separation & Filtration

Woven & Nonwoven Geotextile

AOS & Permittivity

Roads, Retaining

WallsDrainage

Nonwoven Geotextile (needle-punched)

AOS &

In – plane permeability

Roads, Reinforced

Wall & Embankments

Reinforcement

Woven Geotextile & Uniaxial Geogrids

Creep strength & Secant Moduli @2% and 5 %

strain

STANDARDIZATION BASED ON APPLICATION & FUNCTION


Application Functions Products Main Properties

Pavements - Stabilization &

ReinforcementBiaxial and

Triaxial Geogrids

-Secant Moduli @ 2% & 5 % strain- Aperture Stability- Radial Stiffness- Junction Stiffness- Manufacturing Process

Railways - Trackbed Stabilization

Landfill & Lining ImperviousGeomem

-brane

-Manufacturing Process - Raw Material- Thickness Tolerance- MFI & OIT- Width of he Roll

STANDARDIZATION BASED ON APPLICATION & FUNCTION

CERTIFICATION – WHY ??

CONFIDENCE IN SELECTION OF PRODUCTS

BY SPECIFIERS / CLIENTS

CERTIFICATION PROCESS

Comprehensive Assessment:

- Laboratory Testing

- On-Site Evaluations

- Production Inspection

- Consistency in Material Quality

BENEFITS OF CERTIFICATION

Independently verified technical specifications

Product scope / compliance with relevant

materials / system

Tests – highest level of accuracy

Specifies the durability of the product in the

system


Design considerations

-Long-term strength @ different temperatures

-Installation damage factor for different

size of fill material

-Factor for Environmental effects (pH range)

-Factor for manufacturing, extrapolation &

database


Installation guidance & handling of materials

Limitation / Risks – if any

Monitoring of Product manufacturing during the tenure of the Agrément


Standardization of Specifications & Certification eventually will help to develop Performance Related Specifications (PRS)

Performance Related Specifications – Why ??

PERFORMANCE RELATED SPECIFICATIONS (PRS)


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 Parameters

– Depends on the Product and the application

Governing FactorsEnd Result Elements:

- Bearing capacity, stability, settlements, cracking, etc.,

Functional Requirements:- Smoothness, friction, etc.,



• 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:


Improved link between Design and Construction

Improved and focused testing on characteristics related to performance

Promoting best practices to improve quality

Improving Flexibility, Efficiency and Value of the system

Benefits



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


Benefits


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


Barriers


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


ROAD MAP TO THE FUTURE

VISION

Better translation of design and performance requirements into specifications

MISSION

Establish Performance Related Specifications


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


REFERENCES

IRC: SP: 59-2002, “Guidelines For Use of

Geotextiles in Road Pavements and Associated

Works”, Indian Roads Congress, 2002.

Developing Performance Specifications -

Consultation response analysis report, January 2004

http://www.highways.gov.uk/roads/3060.aspx


REFERENCES

INF02 Adopt Performance and Warranty

Specifications to Improve the Quality of Highway

Construction

http://cpr.ca.gov/CPR_Report/Issues_and_Recommendations/Chapter_4_Infrastructure/INF02.html

Performance Specifications Strategic Road Map, 2004http://www.fhwa.dot.gov/construction/pssr04tc.cfm




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, 30780150Fax: + 91-20-30780350.

Email : [email protected] [email protected]

Website : www.garwareropes.com

THANK YOU

engineered solution provider in geosynthetics by m. venkataraman standardization of specifications...

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