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Drilling
Making a hole in rock or earth is called drilling. It is a very ancient human construction activity. The process of a man swinging a hammer against a point drill is as old as civilization. Drilling is an important construction activity which is required for following purposes -
- To explore the types of materials to be encountered on a project usually called exploratory drilling.
- For explosive charges
- For grouting on rock bolt stabilization
- Making bore for placing utility lines
- Seep hole for drainage of water
- Constructing well for water supplies
- For obtaining sample of soil for testing
- Installing cast in-site piles
- Driving shaft for ventilating tunnels and other underground facility
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