Location

Chicago, Illinois

Session Start Date

4-29-2013

Session End Date

5-4-2013

Abstract

Shirobagad also named as Kaliasaur Landslide was developed in the year 1920 at kilometer-147 on National Highway – 58 (earlier named as State Highway - 45) at latitude 300 14’ 30” N and longitude780 53’ 57” in Garhwal region of western Himalaya. This landslide has been investigated by a number of organizations in India and a wealth of data has been generated mainly on geological aspects. Central Road Research Institute has also investigated this landslide during 2007-2011 covering geological as well as geotechnical aspects. The study area basically encompasses metavolcanis and variants of quartzite rock (e.g. pink and white quartzite) with occasional bands of shale. Frequent presence of displacement along structural planes, offsetting of beds, omission and re-appearance of the strata, and change in the attitude of structural planes illustrates the presence of a series of minor faults, it includes contact between litho units drainages etc. Having observed these geological features and many more others the study has further included micro analysis and observations based on Rock mass rating and Slope mass rating, monitoring of slope behavior through simple but reliable, especially designed steel pedestals, Differential Global Positioning System and Total station etc. The minute geological observations added with behavior monitoring and geotechnical backup has been able to decipher the most important causes of the landslide and therefore most suitable remedial scheme which shall be discussed in the paper.

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

Over Eight Decades Old “Young” Landslide – A Case Study

Chicago, Illinois

Shirobagad also named as Kaliasaur Landslide was developed in the year 1920 at kilometer-147 on National Highway – 58 (earlier named as State Highway - 45) at latitude 300 14’ 30” N and longitude780 53’ 57” in Garhwal region of western Himalaya. This landslide has been investigated by a number of organizations in India and a wealth of data has been generated mainly on geological aspects. Central Road Research Institute has also investigated this landslide during 2007-2011 covering geological as well as geotechnical aspects. The study area basically encompasses metavolcanis and variants of quartzite rock (e.g. pink and white quartzite) with occasional bands of shale. Frequent presence of displacement along structural planes, offsetting of beds, omission and re-appearance of the strata, and change in the attitude of structural planes illustrates the presence of a series of minor faults, it includes contact between litho units drainages etc. Having observed these geological features and many more others the study has further included micro analysis and observations based on Rock mass rating and Slope mass rating, monitoring of slope behavior through simple but reliable, especially designed steel pedestals, Differential Global Positioning System and Total station etc. The minute geological observations added with behavior monitoring and geotechnical backup has been able to decipher the most important causes of the landslide and therefore most suitable remedial scheme which shall be discussed in the paper.