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Hydraulics of Morning Glory Spillway—An Overview
Morning glory spillway is one of the water conveyance structures from the reservoir to downstream and is named due to its horny shape. In this type of spillway, water passes through a vertical shaft, horizontal or nearly horizontal tunnel, and joins the downstream river channel. They are used advantageously at dam sites in narrow canyons with steep abutments. The cost of construction of the morning glory spillway is low due to the use of a diversion tunnel constructed at the time of dam construction as a horizontal tunnel. This paper gives an overview of the morning glory spillway in respect of its hydraulic design considerations and different hydraulic aspects that need to be studied in evolving the efficient design of the spillway. The paper presents the desk study of the tunnel spillway of Lakya Tailing Dam, Kudremukh, Karnataka, studied at CWPRS, Pune, along with the discussion of the behavior of the spillway at the project site. This dam plays a vital role in running the Kudremukh Iron Ore Plant. At the project site, vibrations were experienced while passing the discharge over the morning glory spillway inlet. CWPRS carried out the detailed desk studies considering theoretical design considerations and recommended to provide aeration pipe on the spillway crest and suggested strengthening of morning glory inlet shaft. The study is discussed in detail in the present paper.
Hydraulics of Morning Glory Spillway—An Overview
Morning glory spillway is one of the water conveyance structures from the reservoir to downstream and is named due to its horny shape. In this type of spillway, water passes through a vertical shaft, horizontal or nearly horizontal tunnel, and joins the downstream river channel. They are used advantageously at dam sites in narrow canyons with steep abutments. The cost of construction of the morning glory spillway is low due to the use of a diversion tunnel constructed at the time of dam construction as a horizontal tunnel. This paper gives an overview of the morning glory spillway in respect of its hydraulic design considerations and different hydraulic aspects that need to be studied in evolving the efficient design of the spillway. The paper presents the desk study of the tunnel spillway of Lakya Tailing Dam, Kudremukh, Karnataka, studied at CWPRS, Pune, along with the discussion of the behavior of the spillway at the project site. This dam plays a vital role in running the Kudremukh Iron Ore Plant. At the project site, vibrations were experienced while passing the discharge over the morning glory spillway inlet. CWPRS carried out the detailed desk studies considering theoretical design considerations and recommended to provide aeration pipe on the spillway crest and suggested strengthening of morning glory inlet shaft. The study is discussed in detail in the present paper.
Hydraulics of Morning Glory Spillway—An Overview
Lecture Notes in Civil Engineering
Timbadiya, P. V. (editor) / Patel, Prem Lal (editor) / Singh, Vijay P. (editor) / Manekar, Vivek L. (editor) / Gadge, Prajakta (author) / Bhajantri, M. R. (author)
International Conference on Hydraulics, Water Resources and Coastal Engineering ; 2021
2023-09-01
10 pages
Article/Chapter (Book)
Electronic Resource
English
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