The diameter of the pile in clay soil can be calculated using the formula D = (Q / (π * γ * L))^(1/2) where D is the diameter, Q is the axial load, γ is the unit weight of the soil, and L is the length of the pile.
The Federal Highway Administration provides a calculation formula for the diameter of piles in clay soil, taking into account the soil's shear strength and the pile's axial load capacity.
Researchers have proposed a new formula for calculating the diameter of piles in clay soil, which considers the effects of soil consolidation and pile-soil interaction.
This online calculator uses a formula based on the American Society of Civil Engineers (ASCE) guidelines to calculate the diameter of piles in clay soil, given the axial load, soil properties, and pile length.
This video lecture presents a step-by-step guide to calculating the diameter of piles in clay soil, using a formula that accounts for the soil's shear strength and the pile's settlement behavior.
North Carolina State University's Civil Engineering department provides a detailed guide to calculating the diameter of piles in clay soil, including a formula that considers the soil's plasticity index and liquidity index.
This spreadsheet uses a formula to calculate the diameter of piles in clay soil, based on the soil's properties, pile length, and axial load, and is available for download and use.
This review article discusses the various formulas and methods used to calculate the diameter of piles in clay soil, including the effects of soil variability and pile-soil interaction on pile design.