| Term No. | Term Name/Term Description | Action |
|---|
| 2284 |
| 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 |
| 2567 |
| Slab analogy method | | A two-dimensional method of studying the non-linear distribution of stresses in a dam by considering the analogy between the stresses in a two-dimensional elastic body and the deflections of an unloaded slab of the same shape bent by forces and couples applied round its edges...... | | Similar Terms |
| 2568 |
| Lattice analogy method | | A three-dimensional method of analysing stresses in a dam by considering it a frame consisting of diagonally braced squares...... | | Similar Terms |
| 2569 |
| Trial load method | | A three-dimensional method of dam analysis in which the dam is assumed to be made up of two or more systems of elements; for arch dams - vertical cantilever elements and horizontal arch elements; and for gravity dams - vertical cantilever element, horizontal beam elements and a twisted structure system of vertical and horizontal elements. Each syst..... | | Similar Terms |
| 2570 |
| Amplified trial load method | | For arch dams it is an assumption that the water load is divided between the arch and cantilever elements, that the division may or may not be constant from abutment to abutment for each horizontal element and that the true division of load is the one which causes equal arch and cantilever deflections in all arches and cantilevers instead of at the..... | | Similar Terms |
| 2571 |
| Abridged trial load method, or Simplified trial load method | | Used for arch dam preliminary design work by using tables and curves for determining deflections of arches. Modified assumptions are made with regard to the foundation in this analysis which neglect (i) differences in elasticity of rock and concrete, (ii) the angle that the plane of the abutment makes with a vertical plane and (iii) certain seconda..... | | 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 |
| 2573 |
| Finite element method | | A method, wherein a continuous system is represented as an assemblage of finite flat elements interconnected at a finite number of nodal points. The analysis of this idealised structure is then carried out by standard methods of structural analysis by determining the stiffnesses of individual elements and then superposing these to obtain the total ..... | | Similar Terms |
| 2575 |
| Elastic arch method | | A theory of arch analysis wherein the dam is divided into horizontal arch rings assumed to be independent of each other. It is possible to take into account various deformations caused due to elasticity, temperature change and shrinkage, abutment yielding or variable loads and arch forms...... | | Similar Terms |
| 2576 |
| Arch and crown cantilever method | | A preliminary method of analysis of arch dams when the distribution of load between arch and cantilever elements is assumed by adjustments of the deflections of the crown of each arch and the main cantilever section. It is then assumed that the load distribution found at this point is applicable to the entire structure and that the water loads are ..... | | Similar Terms |
| 2578 |
| Unit column method (for buttress dam) | | It is a method of designing a buttress dam evolved by Herman Shorer. It is assumed that the buttress comprises a series of hypothetical curved struts that transmit the water load to the foundations by uniform axial compression without interaction between struts. The axes of the curved struts are analogous to trajectories of first principle stress i..... | | Similar Terms |
| 2593 |
| Similar Terms |
| 2610 |
| Seepage velocity | | The rate of discharge of seepage water through a porous medium per unit area of void space perpendicular to the direction of flow...... | | Similar Terms |
| 2611 |
| Discharge velocity | | Rate of discharge of water through a porous medium per unit of total area perpendicular to the direction of flow. | | Similar Terms |
| 3057 |
| Velocity head | | 1 - The distance a body must fall freely under the force of gravity to acquire the velocity it possesses. 2 - The theoretical vertical height through which a liquid body may be raised due to its kinetic energy. It is equal to the square of the velocity divided by twice the acceleration of gravity...... | | Similar Terms |
| 3068 |
| Similar Terms |
| 3075 |
| Similar Terms |
| 3088 |
| Velocity | | The instantaneous rate of displacement of a fluid particle at any point in the flow. Commonly used for `mean velocity`. | | Similar Terms |
| 3089 |
| Vertical velocity distribution | | A graph of the relation between depth and velocity along a vertical line in a stream, as determined by a set of observations...... | | Similar Terms |
| 3090 |
| Critical velocity | | 1 - Velocity at which the flow changes from laminar to turbulent, and friction ceases to be proportional to the first power of the velocity and becomes proportional to a higher power - practically the square. 2 - See 4247. 3- In Kennedy’s equation, mean velocity which does not allow scouring or silting in a channel with given depth of flow...... | | Similar Terms |
| 3091 |
| Velocity head coefficient | | The coefficient in the equation hv = V2/2g. The coefficient is included to correct for the variation of velocity in a stream cross section...... | | Similar Terms |
| 3092 |
| Laminar velocity | | That velocity below which, in a particular conduit, laminar flow will always exist, and above which the flow may be either laminar or turbulent, depending on circumstances...... | | Similar Terms |
| 3093 |
| Turbulent velocity | | The velocity above which, in a particular conduit, turbulent flow will always exist, and below which the flow may be either turbulent or laminar, depending on circumstances...... | | Similar Terms |
| 3094 |
| Similar Terms |
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