Abstract
Since many years, the cases of small children accidentally falling into the uncovered borewell holes are observed in India. In a general procedure, the rescue teams dig an L-shaped hole, parallel to the borewell, to reach the child at the required depth, or tie the hands of the child and try to pull him out. The former method is more challenging and time-consuming if the child is stuck at a depth of more than a hundred feet as they have to cut through rocky soil; while, the second procedure can cause injury to the child. The given paper analyses the position of a child trapped in a narrow borewell. Using the conservation of energy and the reaction forces by the borewell walls on the child, a mathematical expression is derived to calculate the lifting force that will be required to pull out the baby from the same hole (no parallel digging). The paper also calculates the force to insert equipment that can create space around the child without causing any injury to him. This scope of space can be used to go below the child to generate a pushing force for the rescue activity.
Highlights
Despite strict government rules against open borewell holes, the cases of children falling into these holes are observed in India
The child trapped in borewell is unable to move his body parts, which makes the role of rescue team crucial in saving the life of the child without causing any injury to him
The first of the two recent cases in India took place on 25th October 2019 when a boy named Sujith Wilson fell into the borewell in Nadukattupatti village in Tamil Nadu [13]
Summary
Despite strict government rules against open borewell holes, the cases of children falling into these holes are observed in India. Sridhar proposed a life-saving robot in which he used a grasper to hold the shoulder or wrist of the child. He used a blower to supply fresh air and determined the depth of bore through CCTV cameras [9]. Manjari M V et al proposed a model with two layers of safety to prevent the child from slipping further They used a robotic arm at top and airbag at the bottom with metallic plates on the side to provide support to the child [12]. Bastir et al studied the growth of the thoracic skeleton from the infants till adults morphologically [8]
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