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What is Drilled Pier? Construction of Drilled Pier

A drilled pier is a deep foundation system that uses a large diameter concrete cylinder constructed by placing fresh concrete and reinforcing steel into a drilled shaft. It is also called as a caisson, drilled shaft, Cast-in-drilled-hole piles ...

7 Different Types of Spillways

A spillway is a hydraulic structure built at a dam site for diverting the surplus water from a reservoir after it has been filled to its maximum capacity. Spillways are classified into different types on the basis of ...

Classification of Canals based on Different Factors

A canal is an artificial channel constructed to convey water from rivers, reservoirs, etc. for several purposes like power generation, navigation, irrigation, etc. Canals are classified into different types based on factors such as nature of supply source, functions, type ...

Lacey’s Silt Theory of Canals

Lacey investigated the stability conditions of different alluvial channels and came up with Lacey’s silt theory which explains about the different regime conditions of a channel such as true regime, initial regime, and final regime and the design ...

Ballast – Functions and Types

Ballast is a granular material which is placed and packed below and around the railway sleepers. Different types of ballast materials used are broken stone, sand, gravel, moorum, brickbats etc. The main purpose of ballast is to transmit ...

Roughening Devices and their Types

Roughening devices are installed at the downstream end of the channel and their main function is to dissipate energy from water flow coming on to the downstream bed. Different types of roughening devices generally used are friction blocks, ...