Types of Cofferdams and Their Construction Details

There are various types of cofferdams used for construction of structures in water. Construction details of these cofferdams are provided in this article. The basic needs of human being are food, air, water, shelter and transport. To fulfill the basic needs ...

CANAL FALLS – THEIR TYPES AND IMPORTANCE

What is Canal Falls? Canal falls are solid masonry structure which is constructed on the canal if the natural ground slope is steeper than the designed channel bed slope. If the difference in slope is smaller, single fall cane ...

TYPES OF RAIN GAUGES FOR MEASURING RAINFALL DATA

Rain gauge is a type of instrument used by meteorologists and hydrologists to measure rainfall rate in a certain period of time. Rain gauges are also known as udometer, pluviometer and ombrometer. Types of Rain Gauges There are two types ...

HYDROLOGICAL CYCLE – PROCESS AND COMPONENTS

What is hydrological Cycle? Hydrological cycle is the cyclic movement of water containing basic continuous processes like evaporation, precipitation and runoff as Runoff – >  Evaporation – > Precipitation  – > Runoff. This is a continuous cycle which starts ...

WHAT IS HYDRAULIC JUMP? TYPES OF HYDRAULIC JUMP

What is Hydraulic Jump? Hydraulic jump is the jump or standing wave formed when the depth of flow of water changes from supercritical to subcritical state. When the slope of open channel decreases from steep to mild, the depth of ...

CROSS DRAINAGE WORKS AND ITS TYPES

What is cross drainage works? Cross drainage works is a structure constructed when there is a crossing of canal and natural drain, to prevent the drain water from mixing into canal water. This type of structure is costlier ...

WHAT IS A WEIR? TYPES OF WEIRS AND FLOW OVER WEIRS

What is a weir? A weir is a concrete or masonry structure which is constructed across the open channel (such as a river) to change its water flow characteristics. Weirs are constructed as an obstruction to flow of water. ...

GRAVITY DAMS: CAUSES OF FAILURE OF A GRAVITY DAM

Failure of gravity dam occurs due to overturning, sliding, tension and compression. A gravity dam is designed in such a way that it resists all external forces acting on the dam like water pressure, wind pressure, wave pressure, ice pressure, ...