International Commission on Irrigation & Drainage Commission Interationale des Irrigation et du Drainage

Multilingual Technical Dictionary (MTD)
<<    Browsing page 1 of 1    >>
Term No.Term Name/Term DescriptionAction
991
Vadose water, Gravity suspended water, or Gravitational water
1 - Water in excess of adsorption water and pellicular water seeping towards water table. 2 - See 1858.
Similar Terms
995
Gravity spring
1 - The localised seepage of groundwater from an outcropping aquifer. 2 - A spring whose water flows from permeable material, or from openings in a rock formation entirely under the action of gravity......
Similar Terms
1709
Apparent specific gravity, Volume weight or Bulk specific gravity
The ratio of the mass of a unit or given volume of oven-dry soil, air space included, to the mass of an equal volume of water......
Similar Terms
1710
Real specific gravity, Absolute specific gravity, or Particle density
The ratio of mass, referring to vacuum, of a unit or given volume of soil to the mass, referring to vacuum, of an equal volume of gas-free distilled water under standard conditions......
Similar Terms
2260
Gravity weir, or Masonry weir
A watertight weir made of stone or brick masonry or of concrete, depending solely on its weight for stability. It may be of overall or slope-weir type......
Similar Terms
2335
Gravity dam, Solid gravity dam, Curved gravity dam, or Gravity arch dam
It is customary to confine the term `gravity dam` to solid masonry or concrete dams that resist their imposed loading by the weight of the structures themselves. However, if the dam is sufficiently curved upstream in plan for its entire length, a portion of the imposed loading may be borne by arch action such dams are called `gravity arch dams`......
Similar Terms
2336
Straight gravity dam
A gravity dam having a straight water side face in plan.
Similar Terms
2566
Gravity method (two-dimensional method of analysis)
A method for stress analysis of gravity dams assuming the structure of the dam to be composed of vertical cantilever elements that act independently of each other while the vertical stress varies linearly......
Similar Terms
2572
Trial load twist method (for gravity dams)
It is based on the assumption that the water load is divided between a structural system made up of vertical and horizontal elements with each system occupying the entire volume of the dam. For ungrouted joints there are two systems, the cantilever structure and the twisted structure. The grouted joints have three systems, the cantilever structure,.....
Similar Terms
4601
Flow irrigation, or Gravity irrigation
Method of operating the whole or part of a system using water flow by only gravity, water being available at a sufficient level (or pressure) to ensure its conveyance and distribution in the fields......
Similar Terms
4989
Soil specific gravity or Dry bulk density
Ratio of the mass of water-free soil to its volume.
Similar Terms
5552
Specific gravity
The mass of a standard volume of (cement, mortar) relative to the mass of the same volume of pure water at standard temperature, determined from the standard Le Chatelier flask......
Similar Terms
5662
Bulk density, Void content, Specific gravity, Water absorption
1 - Physical properties of concrete aggregate that can affect the mix proportions and the ultimate strength of the mix. 2 - See 5654......
Similar Terms
7386
Gravity separation:
The separation of mixed material immersed in a liquid,  caused by differences in density.
Similar Terms
<<    Browsing page 1 of 1    >>