Q1B · State and explain in detail any 4 mitigation measures that can be adopted in case of …

Answer

1. Control water. Maintain surface drains and, where designed, subsurface drainage. Diverting water safely reduces saturation; do not discharge it onto another unstable slope.
2. Stabilise the slope. Qualified engineers can use retaining structures, anchors, soil nails or regrading after investigation. The design must suit the failure mechanism and include drainage.
3. Protect cover and regulate land use. Restore suitable vegetation, limit quarrying and avoid unsafe toe cutting or building on unstable ground. Vegetation helps some shallow failures but cannot stop every deep landslide.
4. Map, monitor and prepare. Use susceptibility maps, rainfall observations and movement indicators to prioritise closures and evacuation. Mark safe routes and train residents to report new cracks or tilting structures.