Location
Arlington, Virginia
Date
14 Aug 2008, 4:30pm - 6:00pm
Abstract
Landslides in natural slopes of residual soil are a common problem encountered in tropical regions. Guwahati city, located in Assam in the north-eastern part of India, is an urban watershed covered by a number of hills and hillocks that are capped with lateritic soil. Although the slopes originally consisted of hard and strong rocks, their stability have been impaired by weathering, heavy rainfall and seepage flows. Encroachments and cuttings on the hill slopes due to unplanned urbanisation and earthquake tremors have aggravated the problem. A study of landslides was undertaken focussing on degree of weathering of the rock units, their mineralogy and petrography, physical and mechanical properties as well as various structural features to identify the role of geology in initiating the slides. Soil samples obtained from the sites were tested. Data obtained from the field and laboratory were analysed to determine the causes of the landslides.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
6th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2008 Missouri University of Science and Technology, 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
Goswami, Rajib Kumar and Singh, Baleshwar, "An Analysis of Causes of Urban Landslides in Residual Lateritic Soil" (2008). International Conference on Case Histories in Geotechnical Engineering. 3.
https://scholarsmine.mst.edu/icchge/6icchge/session02/3
An Analysis of Causes of Urban Landslides in Residual Lateritic Soil
Arlington, Virginia
Landslides in natural slopes of residual soil are a common problem encountered in tropical regions. Guwahati city, located in Assam in the north-eastern part of India, is an urban watershed covered by a number of hills and hillocks that are capped with lateritic soil. Although the slopes originally consisted of hard and strong rocks, their stability have been impaired by weathering, heavy rainfall and seepage flows. Encroachments and cuttings on the hill slopes due to unplanned urbanisation and earthquake tremors have aggravated the problem. A study of landslides was undertaken focussing on degree of weathering of the rock units, their mineralogy and petrography, physical and mechanical properties as well as various structural features to identify the role of geology in initiating the slides. Soil samples obtained from the sites were tested. Data obtained from the field and laboratory were analysed to determine the causes of the landslides.
