Alternative Title
Paper No. 2.15
Location
St. Louis, Missouri
Date
10 Mar 1998, 2:30 pm - 5:30 pm
Abstract
The paper presents the case history of two major landslides in Sikkim which had proved to be a source of continual trouble for many years since 1973, causing considerable recurring financial strain on the Border Roads Organisation in order to keep the communications through Highway cuttings in the Sikkim Himalaya are exposed to hazardous landslides of a bewildering variety. Geotechnical investigations have often revealed their complex and violent nature usually associated with high and steep cuttings in immature geological settings, severe river-erosion of toe slopes particularly due to flash floods, deforestation and faulty subsurface and surface drainage conditions during heavy rains. Most landslide cause road blockades thereby badly disrupting the communication system of the region. Some of the important highways, particularly without alternative routes therefore require heavy maintenance inputs. The paper gives an exclusive report on geological, geotechnical field and laboratory investigations of the two selected slides in Sikkim, India. The results of remedial measures suggested and implemented to protect the slope from sliding are discussed in the paper.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
4th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1998 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Gupta, A. K. and Tolia, D. S., "Major Landslides in Sikkim − Analysis, Correction and Protective Measures: A Case Study" (1998). International Conference on Case Histories in Geotechnical Engineering. 13.
https://scholarsmine.mst.edu/icchge/4icchge/4icchge-session02/13
Major Landslides in Sikkim − Analysis, Correction and Protective Measures: A Case Study
St. Louis, Missouri
The paper presents the case history of two major landslides in Sikkim which had proved to be a source of continual trouble for many years since 1973, causing considerable recurring financial strain on the Border Roads Organisation in order to keep the communications through Highway cuttings in the Sikkim Himalaya are exposed to hazardous landslides of a bewildering variety. Geotechnical investigations have often revealed their complex and violent nature usually associated with high and steep cuttings in immature geological settings, severe river-erosion of toe slopes particularly due to flash floods, deforestation and faulty subsurface and surface drainage conditions during heavy rains. Most landslide cause road blockades thereby badly disrupting the communication system of the region. Some of the important highways, particularly without alternative routes therefore require heavy maintenance inputs. The paper gives an exclusive report on geological, geotechnical field and laboratory investigations of the two selected slides in Sikkim, India. The results of remedial measures suggested and implemented to protect the slope from sliding are discussed in the paper.
