The slope of the e-log P curve for a soil mass gives _________.
RSMSSB JE - 2025, RSMSSB JE Agriculture - 2025, RSMSSB - 2025,
Answer: A
The slope of the e-log P curve gives the Compression index, \(C_c\).
Plotted on a log scale, the void ratio of a normally consolidated clay falls along a nearly straight line as pressure rises. Its slope is the compression index
\[ C_c = \frac{e_1 - e_2}{\log (p_2/p_1)} \]
The coefficient of volume compressibility \(m_v\) comes from the arithmetic e-p curve, the coefficient of consolidation \(C_v\) from the time-settlement curve, and the coefficient of permeability K from permeability tests or from \(C_v\) and \(m_v\).
Please log in or register to report this question.