IWM-614 Advance Drainage Engineering (3=2+1)
Lecture Topics No. 1 Drainage: Introduction, definition, Drainage problem of the state and country, Causes and effect of waterlogging, prevention and control of waterlogging and recent advances in drainage 2 Objectives of drainage: Need of drainage, purpose of drainage Effect of poor drainage, benefits of drainage 3 Drainage requirement of various crops Interrelationship of irrigation and drainage 4 Surface drainage: Introduction, surface drainage system and components and design aspects 5 factors affecting drainage, types of lands requiring drainage coefficient 6 Types of surface drainage: Surface drainage for flat areas Surface drainage for sloping areas Interceptor drain 7 Design of surface drainage system
8 Design consideration, design of surface
9 drainage system, hydraulic design of open channel (drain) 10 Subsurface Drainage Drainage properties of the soil and estimation and measurement techniques. 11 Drainable porosity determination and estimation from soil properties Hydraulic conductivity 12 Subsurface drainage system: Components of Subsurface drainage system and different layouts of Subsurface drainage system 13 Derivation of ellipse equation (Hooghoudt’s equation ) application and limitations 14 Ernst’s drain spacing equations and applications
15 Unsteady state equation (Glover-Dum etc.)
16 Field applications of unsteady state equations and its limitations
17 Dynamic equilibrium concept
18 Drainage criteria for steady and unsteady state 19 Design of subsurface drainage system and problems 20 Drainage materials: Drainage pipes, Drain envelop and drainage structures 21 Design of gravel envelope
22 Installation of subsurface drainage system
23 Special installation machineries for subsurface drainage system.
24 Subsurface system design: Procedure, Hydraulic design of subsurface system 25 Non-conventional drainage systems (design aspects) Mole drainage Bio-drainage Vertical/Well drainage 26 Types of salt affected soil Chemical properties of soil Classification of soil 27 Reclamation of saline and alkali soils Leaching requirement and methods Gypsum requirement 28 Salt balance study under drainage systems and hysteresis studies
29 Drainage model: DRAINMOD, SALTMOD and recent software’s etc.
30 Economic aspects of drainage: Problem
31 Drainage for Humid area ,Irrigated areas
32 Conjunctive use of fresh and saline water
S.No. List of Practical
1 In-situ measurement of hydraulic conductivity by single auger hole method
2 In-situ measurement of hydraulic conductivity by inverse auger hole method
3 Installation of piezometer and observation well
4 Preparation of iso- bath and isobar maps
5 Determination of drainable porosity by sand tank model
6 Determination of drainage coefficients and soil hysteresis studies
7 Determination of drainable porosity by sing field method 8 Design of surface drainage systems
9 Design of subsurface drainage systems and drainage material study
10 Determination of chemical properties of soil and water (EC, pH, ESP or SAR)
11 Cost analysis of surface and sub-surface drainage system
12 Study of different drainage models like DRAINMODE, SALTMOD etc.
13 Special case studies of drainage system design
14 Field visit to surface and subsurface drainage schemes
15 Field visit to drainage material manufacturing industry
16 Field visit to non-conventional drainage system schemes