• Skip to main content
  • Skip to primary sidebar
  • Home
  • Construction Engineering
    • Civil Engineering Construction
    • Plain & Reinforced Concrete-II
    • Civil Engineering Estimation
    • Engineering Materials
    • Structural Engineering
  • Mechanics
    • Mechanics of Solids 1
    • Mechanics of Solids 2
    • Soil Mechanics 1
    • Soil Mechanics 2
  • Survey
    • Surveying and Levelling
    • Surveying and Levelling 2
  • Environmental Engineering
    • Environmental Engineering
    • Environmental psychology
    • Environment planning
    • Environmental Design
  • Water Engineering
    • Fluid Mechanics 1
    • Fluid Mechanics 2
    • Hydraulic Engineering
    • Irrigation Engineering
    • Engineering Hydrology
  • Misc.
    • Pavement and Foundation
    • Engineering Geology
    • Theory of structures
    • Design of Structures
    • Steel Structures
    • Research methodology
    • Transportation Engineering
    • Contact Us

Civil Engineering Terms

Easy and Understandable Terms Related to Civil Engineering

You are here: Home / Environmental Engineering 1 / Aquifer properties | Porosity | Specific yield | Specific retention

Aquifer properties | Porosity | Specific yield | Specific retention

October 7, 2012 by admin Leave a Comment

Aquifer properties

The important properties of an aquifer are:

  • Its capacity to release the water held in its pores.
  • Its ability to transmit the flow easily.

These properties especially depend upon its composition.

Porosity

The amount of pore space per unit volume of aquifer is known as porosity.

It is expressed as

n=Vv/Vo

Where Vv= volume of voids

Vo= volume of porous medium

Specific yield

The actual volume of  water that can be extracted by the force of gravity from a unit volume of aquifer material is known as specific yield, Sy.

Specific retention

The fraction of  water held back in the aquifer is known as specific retention, Sr.

Thus Porosity = specific yield + specific retention

Reference : Engineering hydrology by K. Subramanya

Filed Under: Environmental Engineering 1

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Primary Sidebar

Sponsors

Recent Posts

  • Brick calculator | Brickwork calculation and brick estimation
  • Los Angeles Abrasion test | Test for road aggregates
  • Shuttering removal time of different structural members
  • Weight of steel bars per meter – Weight of steel bars formula
  • How to calculate quantity of mortar and its materials
  • Specifications of First class brickwork
  • Properties of first class bricks

Pages

  • About CivilEngineeringTerms
  • Contact Us
  • Privacy Policy
  • Submit your article or Ask any query

Categories

  • Articles
  • Civil Engg Construction and Graphics
  • Civil Engg Construction and Graphics
  • Civil Engineering Construction
  • Civil Engineering Estimation
  • Civil Engineering Practice
  • Construction management
  • Design of Structures
  • Engineering Geology
  • Engineering Hydrology
  • Engineering Materials
  • Environment planning and practice
  • Environmental Engineering 1
  • Environmental psychology
  • Fluid Mechanics 1
  • Fluid Mechanics 2
  • General Terms related to Civil Engineering
  • Hydraulic Engineering
  • Introduction to Environmental Design
  • Mechanics of Solids 1
  • Mechanics of Solids 2
  • Pavement and Foundation
  • Plain & Reinforced Concrete-II
  • Research methodology
  • Soil Mechanics 1
  • Soil Mechanics 2
  • Steel Structures
  • Structural Engineering
  • Surveying and Levelling
  • Surveying and Levelling 2
  • Theory of structures 1
  • Transportation Engineering
  • Water Resources & Irrigation Engineering

Site Stats

Copyright © 2023 · Magazine Pro on Genesis Framework · WordPress · Log in