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Given below are methods of compaction:
1. Vibration technique
2. Flooding the soil
3. Sheep-foot roller
4. Tandam roller
5. Heavy weights dropped from a height
The method suitable for cohesionless soils include
- a)1, 2 and 3
- b)2, 3 and 4
- c)1, 2 and 5
- d)3, 4 and 5
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Given below are methods of compaction:1. Vibration technique2. Floodin...
Explanation:
Compaction is the process of densifying soil by reducing its void ratio. It is an important process in construction to improve the engineering properties of soil. Different methods can be used for compaction depending on the type of soil.
Cohesionless soils:
Cohesionless soils, also known as granular soils, are composed of sand, gravel, or a mixture of both. They have little or no cohesive strength and rely on friction between particles for stability. Compaction of cohesionless soils requires the use of specific methods that can effectively densify the soil.
Methods of compaction suitable for cohesionless soils:
The suitable methods of compaction for cohesionless soils are:
1. Vibration technique: This method involves using vibrating equipment such as vibratory rollers or plate compactors to apply vertical vibrations to the soil. The vibrations help to rearrange the particles and reduce the void ratio, resulting in increased soil density.
2. Flooding the soil: Flooding the soil involves saturating the cohesionless soil with water. The water helps to fill the void spaces between particles, reducing the void ratio and increasing soil density. This method is particularly effective for sandy soils.
3. Sheep-foot roller: A sheep-foot roller is a type of compaction equipment that consists of cylindrical drums with raised bulges resembling sheep's feet. This design allows for better compaction of cohesionless soils by kneading and crushing the soil particles. The sheep-foot roller is particularly effective for compacting sandy or silty soils.
4. Tandem roller: A tandem roller is a type of compaction equipment that consists of two smooth steel drums. It is commonly used for compacting cohesionless soils by applying static pressure and kneading action. The tandem roller is effective for compacting sand and gravel.
5. Heavy weights dropped from a height: This method involves dropping heavy weights, such as steel balls or concrete blocks, from a height onto the soil surface. The impact of the weights causes compaction by rearranging the soil particles and reducing the void ratio. This method is suitable for compacting cohesionless soils.
Therefore, the suitable methods of compaction for cohesionless soils are 1, 2, and 5.
Compaction is the process of densifying soil by reducing its void ratio. It is an important process in construction to improve the engineering properties of soil. Different methods can be used for compaction depending on the type of soil.
Cohesionless soils:
Cohesionless soils, also known as granular soils, are composed of sand, gravel, or a mixture of both. They have little or no cohesive strength and rely on friction between particles for stability. Compaction of cohesionless soils requires the use of specific methods that can effectively densify the soil.
Methods of compaction suitable for cohesionless soils:
The suitable methods of compaction for cohesionless soils are:
1. Vibration technique: This method involves using vibrating equipment such as vibratory rollers or plate compactors to apply vertical vibrations to the soil. The vibrations help to rearrange the particles and reduce the void ratio, resulting in increased soil density.
2. Flooding the soil: Flooding the soil involves saturating the cohesionless soil with water. The water helps to fill the void spaces between particles, reducing the void ratio and increasing soil density. This method is particularly effective for sandy soils.
3. Sheep-foot roller: A sheep-foot roller is a type of compaction equipment that consists of cylindrical drums with raised bulges resembling sheep's feet. This design allows for better compaction of cohesionless soils by kneading and crushing the soil particles. The sheep-foot roller is particularly effective for compacting sandy or silty soils.
4. Tandem roller: A tandem roller is a type of compaction equipment that consists of two smooth steel drums. It is commonly used for compacting cohesionless soils by applying static pressure and kneading action. The tandem roller is effective for compacting sand and gravel.
5. Heavy weights dropped from a height: This method involves dropping heavy weights, such as steel balls or concrete blocks, from a height onto the soil surface. The impact of the weights causes compaction by rearranging the soil particles and reducing the void ratio. This method is suitable for compacting cohesionless soils.
Therefore, the suitable methods of compaction for cohesionless soils are 1, 2, and 5.
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Given below are methods of compaction:1. Vibration technique2. Flooding the soil3. Sheep-foot roller4. Tandam roller5. Heavy weights dropped from a heightThe method suitable for cohesionless soils includea)1, 2 and 3b)2, 3 and 4c)1, 2 and 5d)3, 4 and 5Correct answer is option 'C'. Can you explain this answer?
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