Civil Engineering - Water Supply Engineering - Discussion
Discussion Forum : Water Supply Engineering - Section 2 (Q.No. 6)
6.
Percussion drilling is unsuitable in
Discussion:
11 comments Page 2 of 2.
Zack nom said:
11 months ago
Rock Hardness: Consolidated rocks are typically very hard and dense, making them resistant to the impact forces used in percussion drilling. This results in a very slow rate of penetration and increased wear on the drilling equipment.
Fragmentation Issues: The impact mechanism of percussion drilling tends to create small, fine fragments rather than larger, more manageable pieces. This can lead to difficulties in removing the debris from the borehole, further slowing down the drilling process.
Tool Wear and Damage: The repeated high-impact forces can cause significant wear and damage to the drilling tools, leading to frequent replacements and increased operational costs.
Energy Inefficiency: Percussion drilling requires a lot of energy to break through hard, consolidated rock formations. This makes it less efficient compared to other drilling methods like rotary drilling, which can apply continuous pressure and shear forces more effectively.
Fragmentation Issues: The impact mechanism of percussion drilling tends to create small, fine fragments rather than larger, more manageable pieces. This can lead to difficulties in removing the debris from the borehole, further slowing down the drilling process.
Tool Wear and Damage: The repeated high-impact forces can cause significant wear and damage to the drilling tools, leading to frequent replacements and increased operational costs.
Energy Inefficiency: Percussion drilling requires a lot of energy to break through hard, consolidated rock formations. This makes it less efficient compared to other drilling methods like rotary drilling, which can apply continuous pressure and shear forces more effectively.
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