Question
Download Solution PDFIn soil mechanics, what is Darcy constant?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcepts:
Darcy’s Law states that velocity of flow through porous media is directly proportional to hydraulic gradient for any given saturated soil under steady laminar flow conditions.
If the rate of flow is Q through the cross-sectional area (A) of the soil mass, Darcy's Law can be expressed as
V ∝ i or V = K × i
Q = K × i × A
k = permeability of the soil
i = dh/dl
dh = difference in total heads
dl = length of small soil element
Darcy’s law assumes the flow must be laminar i.e. flow of water through soil voids should have very less velocity. This only possible in case of soils having small but large no of voids. Therefore, it is applicable for soils such as fine saturated sands, clays, silts etc. It is not applicable for soils having large size voids like gravel, boulder etc because in these soils water is drained immediately due to action of gravity and hence, not possible to maintain laminar flow in these soils.
Last updated on May 28, 2025
-> SSC JE notification 2025 for Civil Engineering will be released on June 30.
-> Candidates can fill the SSC JE CE application from June 30 to July 21.
-> The selection process of the candidates for the SSC Junior Engineer post consists of Paper I, Paper II, Document Verification, and Medical Examination.
-> Candidates who will get selected will get a salary range between Rs. 35,400/- to Rs. 1,12,400/-.
-> Candidates must refer to the SSC JE Previous Year Papers and SSC JE Civil Mock Test, SSC JE Electrical Mock Test, and SSC JE Mechanical Mock Test to understand the type of questions coming in the examination.
-> The Staff Selection Commission conducts the SSC JE exam to recruit Junior Engineers in different disciplines under various departments of the Central Government.