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PUBLIC LECTURE : Hydraulic Protective Structures

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Coastal and Hydraulic Protective Structures

Presenters :

Mr. Somnath Biswas

He is a Civil Engineer by profession. He has been involved with the Development and Management of Reinforced Earth Technology since the past 20 years. As the Managing Director of Reinforced Earth
India he has significantly contributed in redefining the Reinforced Earth Technology applications, and brought about changes through technology innovation with a view to improve long term asset
performance and improve health and safety culture in the Construction Industry. He is also the Managing Director of Freyssinet Menard India. Freyssinet Menard India is today involved in bespoke
prestresing works, heavy lifting and stay cable roof and bridge projects in India. The company is also engaged in providing construction methods engineering and structural repairs and strengthening besides design and supply of structural fittings. Both Reinforced Earth India and Freyssinet Menard India are subsidiaries of Soletanche – Freyssinet and a part of Vinci Construction, France. He also is a committee member of Human Resources Committee of Indian Road Congress.

Eng. Atanu Adhikari

He is a Civil Engineer by profession and specialized in geotechnical engineering with total experience of 19 years. He is heading the engineering service group of Reinforced Earth India and one of the principal experts of Terre Armee International Group, responsible for research and development works and specialized in the field of Geotechniques, soil reinforcement and precast works. He has key expertise in design and construction of reinforced earth structures, slope stabilization, land slide protection, river training works and pre-cast solution. He is also involved in research and development works for new methods, techniques, components, materials etc. He has contributed to the invention and intellectual property capitalization of a few techniques which are commercially utilized in the construction of mechanically stabilized earth and for concrete precast crossing structures for Terre Armee International and its worldwide subsidiaries.

Synopsis:

The presentation is divided in four sections i) Introduction to Soletanche – Freyssinet specialist activity and Reinforced Earth Company ii) Use of Mechanically Stabilized Earth (MSE) technology for water front applications, iii) Use of Concrete Grouted Mattress technology for lining and protection works, iv) Use of hydraulically pumped dredged material within Geo-composite containment structures for coastal applications.

The introduction will focus on the history and development of soil reinforcement applications since the invention of the technology. The MSE technology has been used for various applications including many water front and hydraulic structures. The use of this technology especially for waterfront and hydraulic structures shall be discussed.

The second part of the presentation is on specialized concrete lining and protection technology using geotextile under layers and concrete infilled grouted mattress. Concrete grouted mattress is used for erosion protection, protection against bed and bank scour, stabilization of canal slopes and waterproof lining, river training and other scour protection applications around waterfront structures like bridge piers, intake wells.

The last session is on coastal engineering and protective structures using hydraulically pumped dredged material with geo-composite containment structures. These dyke structures are flexible and soft, but durable and alternative solution for various applications like groins, jetties, breakwater, beach nourishment, land reclamation, sea wall, building retaining structure under water etc. Various means of protection against flash flooding, techniques for repair during emergency breach of embankments, raising of bunds and secondary armor protection systems shall be discussed citing examples and case studies,

All the above techniques offer unique technical advantage ensuring long term performance, time saving, low carbon emission, high flexibility, and relatively minimum use of natural resource.

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