Structural Mitigation — Prelims Strategy
Prelims Strategy
For Prelims, your strategy for structural mitigation should focus on factual recall and conceptual clarity. First, clearly differentiate between structural and non-structural mitigation measures.
Memorize key examples for each type of hazard: earthquake-resistant techniques (base isolation, dampers, shear walls), flood control (dams, levees, floodwalls), cyclone shelters, landslide prevention (retaining walls, soil nailing), and tsunami barriers (seawalls).
Pay close attention to the specific engineering principles involved in each. Crucially, remember the relevant Indian Standards (IS codes), especially IS 1893 for earthquake-resistant design, as these are frequently tested.
Familiarize yourself with prominent Indian case studies (e.g., Odisha cyclone shelters, Gujarat earthquake reconstruction) and international best practices (e.g., Japan's seismic codes, Netherlands' Delta Works).
Practice MCQs that test your understanding of these concepts, often involving identifying the correct measure for a given hazard or distinguishing between similar-sounding terms. Focus on the 'what' and 'how' of these measures, ensuring you can identify them correctly in a multiple-choice format.
The Vyyuha Quick Recall 'SHIELD Framework' can help organize these facts for efficient revision.