JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Pre-Requisites

Hydraulics & Fluid Mechanics

Course objectives: The objectives of the course are:

• To explain the concepts of Groundwater Development and Management.
• To demonstrate and derive the basic equations used in Groundwater development and management and the corresponding equations
• To know the investigations, field studies to conduct basic ground water studies.

Course Outcomes

On successful completion of this course, students should be able to:

• Identify different fundamental equations and concepts as applied in the Groundwater studies
• Discuss and derive differential equation governing groundwater flow in three dimensions
• To solve groundwater mathematical equations and analyze pumping tests in steady and non- steady flow cases
• Distinguish and understand the saline water intrusion problem in costal aquifers

UNIT - I

Ground Water Occurrence Ground water hydrologic cycle, origin of ground water, rock properties effecting ground water, Vertical distribution of ground water, zone of aeration and zone of saturation, geologic formation as aquifers, types of aquifers, porosity, specific yield and specific retention. Ground Water Movement-Permeability, Darcy’s law, storage coefficient, Transmissivity, Differential equation governing ground water flow in three dimensions derivation, ground water flow equation in polar coordinate system, ground water flow contours and their applications.

UNIT - II

Analysis of Pumping Test Data-I Steady flow ground water flow towards a well in confined and unconfined aquifers-Dupit’s and Theism’s equations, assumptions, formation constants, yield of an open well interface and well tests.

UNIT - III

Analysis of Pumping Test Data-II Unsteady flow towards well-Non-Equilibrium equations, Thesis solution, Jocob and Chow’s simplifications, Leak aquifers.

UNIT - IV

Surface and sub-surface Investigation surface methods of exploration-Electrical resistivity method and Seismic refraction methods. Subsurface methods geophysical logging and resistivity logging. Concept of artificial recharge of ground water, recharge methods, Applications of GIS and RS in artificial recharge of ground water along with case studies.

UNIT - V

Saline water intrusion in aquifer Occurrence of saline water intrusion, Ghyben-Herzberg relation, Shape of interface, control of water intrusion. Ground water basin management-case studies.

TEXT BOOKS

• 1. Ground water Hydrology by David Keith Todd, John Wiley & Son, New York.
• 2. Ground water by H.M. Raghunath, Wiley Eastern Ltd.
• 3. Groundwater System Planning & Management, R. Willes & W.W.G. Yeh, Prentice Hall.

REFERENCE BOOKS:

• 1. Ground water by Bawvwr, John Wiley & Sons.
• 2. Applied Hydrogeology by C.W. Fetta, CBS Publishers & Distributors.
• 3. Ground Water Assessment, Development and Management by K R Karanth, McGraw Hill Publications.