INVESTIGATION, INSTRUMENTATION AND MONITORING OF LANDSLIDE AT POWARI, KINNAUR DISTRICT (H.P.) - A CASE STUDY

The Central Road Research Institute (CRRI) in New Delhi has begun integrated systematic geological and geotechnical studies. This paper reports the investigation, instrumentation, monitoring, and mathematical analysis of slope movements and landslides. It details geological considerations and geotechnical aspects, such as magnitude, rate, and direction of slope movement, and stability analysis of slopes. It emphasises the importance of instrumented monitoring of slope movements in areas of India liable to landslides. One area being studied is near Powari in the Sutlej Valley, along National Highway 22. The slopes there are tectonically active and liable to earthquakes; their rock formations, mainly gneisses and schists, are folded, crumpled, and faulted. Six bore holes were used in the geotechnical investigations. Surface and subsurface movements were measured with the help of surface markers and inclinometers, respectively. Failures were found to be confined to shallow depths, and match incidents of high rainfall or snow melt. Deep-seated movements, at a very slow rate, were observed at the same time. In the event of rainfall, the overburden was found to be the most critical zone affected, especially where tension cracks are present. Simple but effective remedial and control measures have been developed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02580500
• Corporate Authors:

  Indian Roads Congress

  Jamnagar House, Shahjahan Road
  New Delhi,   India  110 011
• Authors:
  • RAO, P J
  • Babu, GLS
  • KUMAR, K
  • PANIGRAHI, R K
• Publication Date: 1997-10

Language

• English

Media Info

• Features: References;
• Pagination: p. 291-315
• Serial:
  • Journal of the Indian Roads Congress
  • Volume: 58
  • Issue Number: 2
  • Publisher: Indian Roads Congress
  • ISSN: 0258-0500

Subject/Index Terms

• TRT Terms: Geology; Landslides; Mathematical analysis; Measurement; Measuring instruments; Motion; Organizations; Rain; Rock mechanics; Seismicity; Slopes; Soil mechanics; Surveillance
• Uncontrolled Terms: Site investigation
• Geographic Terms: India
• ITRD Terms: 6471: Analysis (math); 6155: Apparatus (measuring); 4053: Geology; 8045: India; 4029: Landslide; 6136: Measurement; 5483: Movement; 9057: Organization (association); 2507: Rain; 5757: Rock mechanics; 5731: Seismic; 5722: Site investigation; 2831: Slope (terrain); 5755: Soil mechanics; 9101: Surveillance
• Subject Areas: Geotechnology;

Filing Info

• Accession Number: 00754232
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Oct 27 1998 12:00AM