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Use of sand-filled geotextile tubes for sustainable coastal protection-case studies in Indian scenario

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Title Use of sand-filled geotextile tubes for sustainable coastal protection-case studies in Indian scenario
 
Creator Kudale, M.D.
Mahalingaiah, A.V.
Tayade, B.R.
 
Subject Geotextile
Seawall
Environment
Offshore reefs
Coastline
 
Description 1241-1246
The
geotextile tubes are widely used as reef structures, with their crest below the
Mean Sea Level. The requirement of the beach width is the main criterion to
decide crest level of the nearshore reef structure. For greater depth
placement, stacked tubes may be one of the alternative solutions. In certain
circumstances, the geotextile tubes are also used right at the eroding
coastline. It is well known that tubes placed abutting to the eroding coastline
get damaged at an early age. This has been experienced at Devbag in
Maharashtra, Candolim in Goa and Shankarpur
Coast in West
Bengal. However, geotextile tubes placed at the eroding coast
& covered with sand or rubble protection; enhance the life of the
structure. In case of Beach Nourishment project, the unsegmented row of tubes
placed below MSL is useful for many purposes. It acts as an offshore reef &
helps in attenuating the wave energy directly attacking the coastline, it traps
the sediments during the downrush and also acts as a barrier to hold the
nourished sand.  Recurring periodic
expenditure of the beach nourishment also decreases after the beach
stabilization within 2-3 years.  
Experiences with geotextile tubes for coastal protection works in India
are described in the paper. Pros and cons of the geotextile tubes placement,
crest level decision, significance of the protection of fabric from UV rays
etc. are discussed in details with a few case studies.
 
Date 2016-06-27T03:51:51Z
2016-06-27T03:51:51Z
2014-07
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/34434
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.43(7) [July 2014]