Location

San Diego, California

Session Start Date

5-24-2010

Session End Date

5-29-2010

Abstract

Frequent and widespread flooding is a major problem in Assam, which is a north-eastern state of India. The problem is caused mainly by the Brahmaputra river whose erratic riverbank erosion has been leading to general widening of channels and large-scale instability of banks. In the last century, the river has widened by more than 50% in several stretches causing serious threat to nearby urban centres apart from eroding several thousand hectares of fertile agricultural land including tea gardens. As of now, the width between outer banks ranges from as low as 1.2 km at some sections to as high as 18 km at some reaches. Both the flooding and erosion in the river valley can be tackled only through an adaptive response that includes the use of structural protection systems. A practicability study was conducted for raising the height of existing flood embankments in a particular reach of the river. Stability analysis was carried out to determine safety factors under static conditions and earthquake loading. Riverbank protection works are also discussed.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Meeting Name

Fifth Conference

Publisher

Missouri University of Science and Technology

Publication Date

5-24-2010

Document Version

Final Version

Rights

© 2010 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

Share

COinS
 
May 24th, 12:00 AM May 29th, 12:00 AM

Stability Analysis of Flood Protection Embankments and Riverbank Protection Works

San Diego, California

Frequent and widespread flooding is a major problem in Assam, which is a north-eastern state of India. The problem is caused mainly by the Brahmaputra river whose erratic riverbank erosion has been leading to general widening of channels and large-scale instability of banks. In the last century, the river has widened by more than 50% in several stretches causing serious threat to nearby urban centres apart from eroding several thousand hectares of fertile agricultural land including tea gardens. As of now, the width between outer banks ranges from as low as 1.2 km at some sections to as high as 18 km at some reaches. Both the flooding and erosion in the river valley can be tackled only through an adaptive response that includes the use of structural protection systems. A practicability study was conducted for raising the height of existing flood embankments in a particular reach of the river. Stability analysis was carried out to determine safety factors under static conditions and earthquake loading. Riverbank protection works are also discussed.