Location

Chicago, Illinois

Session Start Date

4-29-2013

Session End Date

5-4-2013

Abstract

The design team of Water & Environment division of Mott MacDonald, Ahmadabad was involved in design of Rubble mound protection bund for a Sea water intake and outfall project. The project was to provide make up sea water for 2x250 MW Lignite based Thermal Power Pant (TPP) at Bhavnagar for Bhavnagar Energy Company Limited. The makeup water required for TPP was drawn through Sea water Intake (SWI) area constructed in the intertidal zone of Gulf of Khambhat. The SWI area consists of a Pumping Station for pumping sea water from storage pond. The storage pond was surrounded by all around protection bund. Based on design requirement & available material near site, combination of Rubble mound protection bund and earthen embankment was considered for design having Armour stone layers as Break waters. The sizes of Armour stone was designed based on the wave modeling studies for return period of 25 years. The design life considered for bund was 25 years. Based on the wave modeling studies, significant wave height was determined and that was considered as design wave height for determining sizes of Armour stones. The main body of bund comprises of the core, built by quarry run & two under layers of armour stones. Apart from determining armour stone sizes, checking the overall bund formation for its stability was also an important criterion for design. For analyzing slope stability of Rubble mound and earthen bund, SLOPE/W software was used. Based on the analysis results from software, toe protection & scour protection at seaward face of the bund was proposed. This paper provides Geotechnical aspect of the bund that includes Bearing capacity check, Settlement check, and Slope Stability analysis for Seismic condition, Non seismic condition & hydrodynamic wave forces. Liquefaction potential of the soil was also considered in the study.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Seventh Conference

Publisher

Missouri University of Science and Technology

Publication Date

4-29-2013

Document Version

Final Version

Rights

© 2013 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Apr 29th, 12:00 AM May 4th, 12:00 AM

Geotechnical Aspect for Protection Bunds

Chicago, Illinois

The design team of Water & Environment division of Mott MacDonald, Ahmadabad was involved in design of Rubble mound protection bund for a Sea water intake and outfall project. The project was to provide make up sea water for 2x250 MW Lignite based Thermal Power Pant (TPP) at Bhavnagar for Bhavnagar Energy Company Limited. The makeup water required for TPP was drawn through Sea water Intake (SWI) area constructed in the intertidal zone of Gulf of Khambhat. The SWI area consists of a Pumping Station for pumping sea water from storage pond. The storage pond was surrounded by all around protection bund. Based on design requirement & available material near site, combination of Rubble mound protection bund and earthen embankment was considered for design having Armour stone layers as Break waters. The sizes of Armour stone was designed based on the wave modeling studies for return period of 25 years. The design life considered for bund was 25 years. Based on the wave modeling studies, significant wave height was determined and that was considered as design wave height for determining sizes of Armour stones. The main body of bund comprises of the core, built by quarry run & two under layers of armour stones. Apart from determining armour stone sizes, checking the overall bund formation for its stability was also an important criterion for design. For analyzing slope stability of Rubble mound and earthen bund, SLOPE/W software was used. Based on the analysis results from software, toe protection & scour protection at seaward face of the bund was proposed. This paper provides Geotechnical aspect of the bund that includes Bearing capacity check, Settlement check, and Slope Stability analysis for Seismic condition, Non seismic condition & hydrodynamic wave forces. Liquefaction potential of the soil was also considered in the study.