landslide risk assessment & mitigation measures in pakistan.ppt
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Landslide Risk assessment & Mitigation measures in PakistanTRANSCRIPT
Institutional cooperation between Pakistan and Norway
Landslide Risk assessment & Mitigation measuresBetween Geological Survey of Pakistan & Norwegian Geotechnical Institute
Collaborating Institutes
Geological Survey of Pakistan(GSP)&
Norwegian Geotechnical Institute(NGI)
Cost of the Project approved by the Steering CommitteeContribution by GSP(in the form of logistics and office utilities)
= 1.5 Million Pak Rupees
Contribution by Norwegian Government = 2.99 Million NOK
Duration of Project2006-2009 (three years)
Commencement of the ProjectNovember 2006
Major ObjectivesMapping of landslide hotspots in Muzaffarabad and the valleys along the affected area and selection of two hazardous sites for more detailed investigations. Collection of data and detailed analysis of two hazardous slopes. Evaluation and suggestion of mitigation measures for two hazardous slopes. Training of Pakistani partners at NGI. Assistance for inventory of historical landslides and carrying out a national landslide hazard zonation and management of landslide risk challenges in Pakistan (long term). Workshops in Pakistan and Oslo.
Achievements
Achievements
Landslide Mapping Using GIS and Remote Sensing
Bagh-Balakot Fault
2005
October 9, 2005 - September 15, 2005
Quickbird Image, 0.6 m resolution of Hattian Bala rock avalanche
Hattian Landslide
Minhaj Camp
Ehsaas Camp
Debris Flow A Debris Flow B
Landsliding at Maira Tanoulian
Massive cracks
Massive cracks
?
Houses
Naili Landslide
Evacuate houses above and below landslides
Bandi Saman
Old scarp (h=8-10 m) New scarp (h=3-5m)
40 m
60 m 350 m
Old landslide has resumed in Monsoon season (Photo 10, August)
Ban No. of deaths = 120 No. of houses destroyed = 44
Baigrah and Ban villages near Balakot
Baigrah No. of deaths = 80 No. of houses destroyed= 45
Baigrah
Ban
Bagaar village near Balakot
No. of deaths = 50 No. of houses destroyed = 25
New Sliding Creeping
Another view of the creeped area
Fluvial Material Collapse due to landslide on the Right Bank of Tariqabad Nala
Makree Village
Semi Circular Gravitational Crack on the Slope of Makree Area
Achievements
Two hazardous sites have been selected for more detailed investigation
1.Badhiara Landslide 2.Dhanni Bakalan Landslide
Badhiara Landslide
Achievements
Dhanni Bakalan Landslide
Achievements
63 m
Achievements
Collection of data and detailed analysis of two hazardous slopesSoil and rock samples have been collected from the two selected sites
Achievements
Trainings of Pakistani Partners at NGI1. GIS methods related to landslide mapping March 5-14, 2007. No. of trainees = 3
2. GIS methods related to terrain analysis April 19 May 09, 2008. No. of trainees = 1
3. Stability Analysis and Mitigation Measures April 14 to May 02, 2009. No. of trainees = 2
Achievements
Establishment of IT Lab in GSP Office
Achievements
COMPOSITE GEOLOGICAL HAZARD ZONATION MAP OF HATTIAN BALA & SURROUNDING AREAS.
Methodology for preparing Hazard Zonation Map
Geomorphological Map
Geohydrological Map Topographic Map Geological Map Base Map
Combination of all field data (Tables) and spatial data through GIS
Process Map
Hazard Zonation Map
Achievements
WorkshopThe workshop scheduled to be held at Oslo was arranged at Bangkok (Thailand) on October 13-14, 2008. The title of the workshop was Experience of Geotechnical Investigations and Mitigation for Landslides. Participants from Bangladesh, Bhutan, India, Nepal, Norway, Pakistan, Sri Lanka and Thailad shared their experiences related to the subject.
What is remaining to achieve?Detailed analysis of two hazardous slopesEvaluation and suggestion of mitigation measures for two hazardous slopes
Workshop at the end of the ProjectThe project progress was badly affected due to security situation in the country as the Norwegian counterparts didnt come for detailed investigations of the two selected hazardous slopes
Grant received so far (both GSP and NGI)
Rupees nine million four hundred sixty two thousand (Rs. 9, 462,000) (through Planning Division of Pakistan)
Grant spent and balance available
Expenditures By NGI = Rs. 4,560,000 By GSP = Rs. 4,150,304 Total = Rs. 8,710,304
Remaining Balance Rs. 751,696
Completion DateNovember 2010
Major benefits to PakistanThe output of the project will be beneficial for rehabilitation and reconstruction activities in the 2005 Earthquake affected areas of Pakistan in general, and Jhelum Valley, AJK in particular.
Communication system will be in much better condition along Jhelum Valley road of regional importance after taking mitigation measures for landslides.GSP will be in a position to strengthen their capacity in the field of assessment ,prevention, mitigation and management of the risk caused by landslide hazard. Experiences from the project will assist GSP in preparation of a strategic plan on how Pakistan should set priorities for handling the risk caused by landslides in a long term prospective.
THANK YOU