When using a Sheep's foot roller on clay soil, which parameter decreases?

When using a Sheep's foot roller on clay soil, which parameter decreases?

• A. Void Ratio
• B. Specific Gravity of solid
• C. Degree of saturation
• D. Water content

Answer: (A)

When using a Sheep's foot roller on clay soil, the parameter that decreases is the void ratio. The Sheep's foot roller is specifically designed to compact cohesive soils like clay by applying vertical pressure and kneading action. As the roller moves over the clay, it breaks up the soil structure and pushes the individual particles closer together, thus reducing the space between them. This results in a decrease in the void ratio, which is defined as the ratio of the volume of voids to the volume of solids in the soil. The effect of this compaction process is crucial for improving the engineering properties of the clay, such as its strength and stability, which are essential for construction purposes. A lower void ratio indicates that the soil is more densely packed, which contributes to its overall load-bearing capacity. The other parameters mentioned, such as specific gravity of solids, degree of saturation, and water content, may not necessarily decrease due to the rolling process. Specific gravity of solids is a material property and remains unchanged during compaction. Degree of saturation and water content may fluctuate depending on moisture addition or evaporation but are not directly correlated with the mechanical compaction effects of the roller in this context.

When using a Sheep's foot roller on clay soil, the parameter that decreases is the void ratio. The Sheep's foot roller is specifically designed to compact cohesive soils like clay by applying vertical pressure and kneading action. As the roller moves over the clay, it breaks up the soil structure and pushes the individual particles closer together, thus reducing the space between them. This results in a decrease in the void ratio, which is defined as the ratio of the volume of voids to the volume of solids in the soil.

The effect of this compaction process is crucial for improving the engineering properties of the clay, such as its strength and stability, which are essential for construction purposes. A lower void ratio indicates that the soil is more densely packed, which contributes to its overall load-bearing capacity.

The other parameters mentioned, such as specific gravity of solids, degree of saturation, and water content, may not necessarily decrease due to the rolling process. Specific gravity of solids is a material property and remains unchanged during compaction. Degree of saturation and water content may fluctuate depending on moisture addition or evaporation but are not directly correlated with the mechanical compaction effects of the roller in this context.