Ground Improvement using Geosynthetics (Lecture - 23) - PowerPoint Presentation, Civil Engineering Notes - Civil Engineering (CE)

Civil Engineering (CE): Ground Improvement using Geosynthetics (Lecture - 23) - PowerPoint Presentation, Civil Engineering Notes - Civil Engineering (CE)

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GROUND IMPROVEMENT
USING GEOSYNTHETICS
NPTEL Course 
Prof. G L Sivakumar Babu
Department of Civil Engineering
Indian Institute of Science
Bangalore 560012
Email: gls@civil.iisc.ernet.in
Lecture 24
Page 2


GROUND IMPROVEMENT
USING GEOSYNTHETICS
NPTEL Course 
Prof. G L Sivakumar Babu
Department of Civil Engineering
Indian Institute of Science
Bangalore 560012
Email: gls@civil.iisc.ernet.in
Lecture 24
Types, Functions and Applications
Page 3


GROUND IMPROVEMENT
USING GEOSYNTHETICS
NPTEL Course 
Prof. G L Sivakumar Babu
Department of Civil Engineering
Indian Institute of Science
Bangalore 560012
Email: gls@civil.iisc.ernet.in
Lecture 24
Types, Functions and Applications
Geosynthetics  Terms
Permeable
Nonpermeable
Geomembranes
waterproofing sheets
Geotextiles
woven
nonwoven 
knitted
Compo
sites
all
combi
nations
Geogrids
woven
knitted
extruded+
stretched
welded
Thermo
plastic
Elasto
meric
Bitumi
nous
Geo
clay
liner
Geosynthetics
Page 4


GROUND IMPROVEMENT
USING GEOSYNTHETICS
NPTEL Course 
Prof. G L Sivakumar Babu
Department of Civil Engineering
Indian Institute of Science
Bangalore 560012
Email: gls@civil.iisc.ernet.in
Lecture 24
Types, Functions and Applications
Geosynthetics  Terms
Permeable
Nonpermeable
Geomembranes
waterproofing sheets
Geotextiles
woven
nonwoven 
knitted
Compo
sites
all
combi
nations
Geogrids
woven
knitted
extruded+
stretched
welded
Thermo
plastic
Elasto
meric
Bitumi
nous
Geo
clay
liner
Geosynthetics
Polymers
Density   Melting    Strain@uts    creep
(g/cm
3
)(
o 
C) (%)
Polyolefines .90 to .95  110 to 170  >100       high
PE,PP
Polyester 1.38         >240        10 to 15   low
PET
Page 5


GROUND IMPROVEMENT
USING GEOSYNTHETICS
NPTEL Course 
Prof. G L Sivakumar Babu
Department of Civil Engineering
Indian Institute of Science
Bangalore 560012
Email: gls@civil.iisc.ernet.in
Lecture 24
Types, Functions and Applications
Geosynthetics  Terms
Permeable
Nonpermeable
Geomembranes
waterproofing sheets
Geotextiles
woven
nonwoven 
knitted
Compo
sites
all
combi
nations
Geogrids
woven
knitted
extruded+
stretched
welded
Thermo
plastic
Elasto
meric
Bitumi
nous
Geo
clay
liner
Geosynthetics
Polymers
Density   Melting    Strain@uts    creep
(g/cm
3
)(
o 
C) (%)
Polyolefines .90 to .95  110 to 170  >100       high
PE,PP
Polyester 1.38         >240        10 to 15   low
PET
? Filtration
? Drainage
? Allow the passage of 
fluids preventing the 
migration of soil 
particles(geotextiles,
geocomposites)
? Transport of fluids 
geonets,
geocomposites
Functions of Geosynthetics
Read More

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