SLOPE STABILITY OF THE PAWATI LANDSLIDE, DOLKHA DISTRICT, CENTRAL NEPAL
Pawati landslide located at the right bank of Tamakoshi River in the Dolkha district of central Nepal is used as a case study interpreted based on geologic and geomorphologic observations. The study area falls in the Lesser Himalayan belt of central Nepal. This landslide has been common threat to the local people causing severe damage to the houses and cultivated land. In the area, the fragile quaternary top soil overlying the augen gneiss complex permits precipitation to infiltrate making a pearched water table that causes instability of the landslide. A detailed study of the landslide was carried out in the field as well as slope stability analysis to assess the causes and mechanism of failure. The field assessment and safety factor analysis revealed the Pawati landslide to be unstable especially during monsoon period. The details of the analysis as well as possible cost effective mitigation measures such as gulley protection and bio-engineering works which are urgently needed are discussed in the paper.
Sunil Kumar Dwivedi Shreekamal Dwivedi Ganesh Raj Joshi
Faculty of science, University of the Ryukyus, Okinawa, Japan Department of Water Induced Disaster Prevention, Lalitpur, Nepal
国际会议
南京
英文
625-630
2007-04-21（万方平台首次上网日期，不代表论文的发表时间）