NOTCH ,WEIR AND ITS TYPES Notch A notch may be defined as an obstruction over which the flow of liquid occurs In case of measuring tank or reservoir, the opening is provided at the side of the tank such that the liquid surface in the tank is below the top edge of the opening. Weir A weir is a notch on a large scale used for measuring the flow of a river, canal etc. It is a concrete or masonry structure of substantial breadth built across the river in the direction of flow. This allows the excess water to flow over its entire length to the downstream side. Thus a weir is similar to a small dam constructed across the river, with a difference that the excess water flows downstream only through a small portion called spillway and in case of weir, the excess water flows over its entire length. Nappe and crest The sheet of water flowing through a notch or over a weir is known as nappe or vein . The bott...
The G.D. Naidu Elevated Bridge is a 10.10 km four-lane flyover in Coimbatore, India, costing approximately ₹1,791 crore, designed to significantly reduce travel time on the congested Avinashi Road by bypassing 12 intersections. The construction features eight ramps for connectivity, roller crash barriers for safety, and environmental elements like 4,500 plants and 220 rainwater harvesting structures. The project started in 2020 and was expedited after 2021, with the final inauguration taking place in October 2025. Key Construction Details Project Type: Four-lane elevated flyover. Length : Approximately 10.10 kilometers. Route : Extends from Uppilipalayam to Goldwins, covering Avinashi Road. Purpose : To decongest Avinashi Road by bypassing over 12 traffic intersections. Cost : Estimated at around ₹1,791 crore. Timeline : Announced in 2020, work was expedited after 2021, with inauguration in October 2025. Str...
In the construction industry, the appropriate selection of materials is crucial as they form the fundamental basis for determining the strength and durability of structures. TMT (Thermo-Mechanically Treated) Steel is one of the essential components in construction as it stands out for its exceptional strength and ductility in building structures. Thus, contributing to the prolonged longevity and durability of the structures. In this article, we will delve into the different sizes of TMT steel bars and their different uses in the construction industry. These TMT Steel bars come in different sizes based on their varied diameters. The different diameter of steel bars are as follows: 8mm Steel Rod 10mm Steel Rod 12mm Steel Rod 16mm Steel Rod 20mm Steel Rod 25mm Steel Rod 32mm Steel Rod, etc TMT bars of varied sizes, play a pivotal role in diverse infrastructure initiatives, the versatility of TMT bars is ...
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