Geo-Technical and Geological Study, Management Plan of Landslide

Landslide is a natural disaster that occurs when rock, earth, or debris flows to downwardslope due to gravity after being detached from slope underneath. It is essential to know the geotechnicalproperties to analyse the causes of landslide. For the present study geotechnical investigation has beencarried out on the slopes of Lonavala and Tamini Hill, Maharashtra . Results obtain from laboratory testand field investigation revealed that the underlying causes of the landslide could be (a) the geologicalformation of those hills (b) permeability through the different layers of soil (c) shear strength of the soil(d) cutting of hills slope for reconstruction and widening of the road. Landslide triggered due to heavyprecipitation during the monsoon season. In north eastern area of India is mainly hilly that’s why recentdevelopment is going on here. Due to this reasons road construction is going on here. As the wholerange is composed of siltstone and mudstone mainly loosely deposited soil they are cutting the hillsvertically which unstable the slope. After the thorough investigation we have seen that mainly shallowlandslide happen on those two hills.