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Prospects for developing a minor port facility at Betul, Goa

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Title Prospects for developing a minor port facility at Betul, Goa
 
Creator Mathai, Thomas
Kumar, Satish
Rajarama, K. N.
Kumar, P. Praveen
Chandran, M. Suresh
 
Subject Port
Vessel
Bathymetry
Sea bed
 
Description 76-81
Marine and Coastal Surveys Division of
Geological Survey of India, initiated preliminary, integrated geological, geotechnical
and geophysical surveys off Betul for making an appraisal of the developmental
possibilities of setting up a minor port in this sector. Detailed surveys
helped generate a bathymetric map of the area indicating a smooth and gently sloping
seafloor without any hazards, ideal for port development. Sediment cores were
studied to evaluate the sub-seabed sediment package and visualize the seabed
sediment distribution. Mean size of the seabed surface sediments broadly
signifies a sediment milieu encompassing variants from silt to clay, broadly
classified as silty clay. Geotechnical analysis of the sediments helped to
evaluate the engineering properties of the seabed and sub-seabed sediments
quintessential for development of a port in this sector. Clayey sediments have
a high degree of plasticity with a very high swelling potential. Shear
resistance is almost unregistered at almost all levels of the sediment package.
Geotechnical characteristics

of the sediments are generally conducive
for offshore structures. Side scan sonar surveys brought out a clear seafloor, generally
monotonous and thus well suited for a navigational channel access. Current
Observations carried out in the nearshore sector indicate low velocity currents
and are not influenced by tidal variations. Environmental parameters including
Temperature, pH, Salinity, Conductivity and Dissolved Oxygen were
studied to record the conditions prevalent in this sector, for post-development
comparison.
 
Date 2014-02-05T09:31:41Z
2014-02-05T09:31:41Z
2014-01
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/26429
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.43(1) [January 2014]