
A G+3 commercial-cum-residential building collapsed on Rayalacheruvu Road in Tirupati on Wednesday after deep excavation on an adjacent plot. No deaths were reported as occupants were evacuated after cracks appeared on the…
A G+3 commercial-cum-residential building collapsed on Rayalacheruvu Road in Tirupati on Wednesday after deep excavation on an adjacent plot. No deaths were reported as occupants were evacuated after cracks appeared on the walls.

Police and municipal officials said earth-moving machinery had dug foundation trenches 14 to 20 feet deep close to the building, suspected to have affected soil stability. The area was cordoned off and earthmovers cleared debris. Three people suffered minor injuries, police had not officially confirmed.
The building, constructed around three-and-a-half years ago, housed commercial establishments. The property owner alleged excavation was done without adequate safety precautions. Municipal officials and police have launched an inquiry into whether the excavation had required approvals and safety measures.
Building collapses during adjacent excavation are governed by municipal building bylaws that mandate retaining walls and soil stability assessments before deep digging. The National Disaster Management Authority guidelines require excavation beyond 1.5 metres to be shored and braced. The Tirupati municipal corporation's building permission rules also require structural stability certificates for adjoining properties. The inquiry will examine if the excavation contractor obtained a no-objection certificate from the adjacent building owner and if the building's foundation depth met the minimum required by the National Building Code. The next step is a structural audit report from the municipal corporation.
Source: deccanchronicle.com
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