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NPTEL Syllabus

Design of Hydraulic Structures - Webcourse

COURSE OUTLINE

Structures that are constructed for the purpose of the utilisation of water or tocon ta in the damages caused by water, occupy a position of specialimportance in human society.

Although an introduction to this unique class of structure is available throughthe course on Water Resources Engineering, the present course plans todiscuss each of these structures in detail, with ample worked examples.

Special reference would be made, wherever possible, to relevant national andinternational standards and norms.

The course would cover the design aspects of the hydraulic structures meantf o r storage, diversion, conveyance and distribution of water apart fromstructures for river flow modification and control.

Preliminary design aspects of hydropower structures would also be included.

Foundation considerations in the design of the structures would be discussedfor each structure.

COURSE DETAIL

Sl. No. Topic No. ofHours

1 Storage, Diversion, Conveyance and Distributionstructures: An Introduction.

1

2 Reservoirs behind dams and pond area behindbarrages: determination of capacities (influence ofsedimentation). Dead and Live storages.

1

3 Design of storage structures: Gravity dam: Spillway andNon-overflow sections and their design.

3

4 Concrete dam details: joints, water-seals, galleries andadits, instrumentation: purpose and techniques; sluices.

1

5 Foundation treatment for concrete dams (curtain andconsolidation grouting).

1

6 Other types of concrete dams (Arch, Buttress, Hollow,etc.).

2

7 Types of spillways (adaptations for concrete and 2

NPTELhttp://nptel.iitm.ac.in

Civil Engineering

Pre-requisites:

1. Water Resources Engineering.

Additional Reading:

http://140.194.76.129/publications/eng-manuals/

Hyperlinks:

www.britishdams.org/

Coordinators:

Dr. Dhrubajyoti SenDepartment of Civil EngineeringIITKharagpur

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embankment dams).

Flow characteristics of gated/ungated spillways / breast-walled gates.

8 Types of energy dissipators (Hydraulic Jump / Ski-Jump/ Rollerbucket).

Influence of tail water rating curve on choice of energy

Dissipater.

2

9 Design flood for dams (according to the size of damsand reservoir capacities).

PMF, SPF, Return Period; Gumbel distribution.

2

10 Flood routing through spillways (Pul's method). 2

11 Backwater curve analysis for reservoirs. 1

12 Typical sections of earth and rockfill dams(homogeneous / zoned).

1

13 Analysis and design of embankment dams. 3

14 Types of gates for dams and barrages (radial andvertical li ft types).

1

15 Diversion structures: Barrages and weirs on permeablefoundations.

1

16 Design consideration of barrages for surface and sub-surface flows (raft foundation on alluvial rivers).

Retrogression and flow concentration effects on barragedesign.

3

17 Design consideration of barrages (gravity design on

boulder bed rivers).

1

18 Sedimentation characteristics for barrage ponds and itsinfluence by gate operation; management ofsedimentation in barrage ponds.

1

19 Barrage components: Glacis, Rigid apron, Flexible(concrete block) apron.

End-sill arrangements for energy dissipation for weirand under-sluice sections of a barrage.

Pier, Divide wall, Sheet Piles.

2

20 Canal structures: Head regulator, Cross regulator andFalls.

2

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21 Canal section design (unlined and lined); in cutting andfilling.

1

22 Aqueducts; Superpassage; Syphon Aqueducts. 2

23 Distribution structures for conveying water from canals

to irrigation fields.

1

24 Canal capacity determination from field waterrequirements.

1

25 Guide bunds for flow control of rivers (for barrages andbridges); its design features.

1

26 Principal components of a hydropower station: Intakes

and Trash racks, Water conductor system, Tunnels,Surge tanks, Penstocks, Anchor blocks.Turbinefoundation.

2

27 Structures for prevention of riverbank and coastalerosion (considerations for toe scour; provision of fil terto prevent subsidence).

1

Total 42

References:

1. Hydraulic Structures, P. Novak, A. I. B. Moffat, C. Nalluri and R.Narayanan, Taylor and Francis, U. K.

2. Hydraulics of Spillways and Energy Dissipators, R. M. Khatsuria, MarcelDekker Publishing, New York.

3. Manual on Barrages and Weirs on Permeable Foundation, Publication179, (Volumes I and II), Central Board of Irrigation and Power, NewDelhi.

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