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Geotechnical Characterization of Huma Bay Mud from Chilka Lake
Chilika Lake is the largest coastal lagoon in India. The geomorphology, water quality and biological productivity of the lake had undergone significant changes over the years under the influence of natural events and anthropogenic interventions with loss of biodiversity due to silting up of the outer channel. The Chilika sand is poorly graded sandy soil with 80.1% of fine sand and 19.7% of medium sand with a specific gravity of 2.64, the optimum moisture content of 10.3% and pH 7.72. Two biopolymers, guar gum, and xanthan gum are used to stabilize the sand imparting shear strength of sand which can be used to make small (dumps) islands for the migratory birds. Better surface penetration force with guar gum solution obtained with 0.5%, 1%, 1.5%, 2% are found as 70.19 N, 72.28 N, 66.99 N, 18.76 N, respectively. The UCS values are found for guar gum with 246 kPa, 334 kPa, 419 kPa, 547 kPa for 0.5%, 1%, 1.5% and 2% guar gum, respectively, after 60 days. Hence, use of biopolymer for stabilization of sand can be used as the barrier in the lake for sustainable development of the fragile ecosystem.
Geotechnical Characterization of Huma Bay Mud from Chilka Lake
Chilika Lake is the largest coastal lagoon in India. The geomorphology, water quality and biological productivity of the lake had undergone significant changes over the years under the influence of natural events and anthropogenic interventions with loss of biodiversity due to silting up of the outer channel. The Chilika sand is poorly graded sandy soil with 80.1% of fine sand and 19.7% of medium sand with a specific gravity of 2.64, the optimum moisture content of 10.3% and pH 7.72. Two biopolymers, guar gum, and xanthan gum are used to stabilize the sand imparting shear strength of sand which can be used to make small (dumps) islands for the migratory birds. Better surface penetration force with guar gum solution obtained with 0.5%, 1%, 1.5%, 2% are found as 70.19 N, 72.28 N, 66.99 N, 18.76 N, respectively. The UCS values are found for guar gum with 246 kPa, 334 kPa, 419 kPa, 547 kPa for 0.5%, 1%, 1.5% and 2% guar gum, respectively, after 60 days. Hence, use of biopolymer for stabilization of sand can be used as the barrier in the lake for sustainable development of the fragile ecosystem.
Geotechnical Characterization of Huma Bay Mud from Chilka Lake
Lecture Notes in Civil Engineering
Latha Gali, Madhavi (editor) / P., Raghuveer Rao (editor) / Dash, Harishankar Jeevan (author) / Das, Sarat Kumar (author) / Singh, Suresh Prasad (author)
2020-09-19
10 pages
Article/Chapter (Book)
Electronic Resource
English
Geotechnical Characterization of Huma Bay Mud from Chilka Lake
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