Description of Hydrology Apparatus:
The apparatus consists of a shallow water tight rectangular tank, approximately 2000 mm by 750 mm by 250 mm deep, which can be filled with a fine granular medium to form the experimental terrain. The tank is supported on a fabricated steel frame with mountings which allow adjustment of the inclination of the tank. Above the tank is a frame supporting an array of eight spray nozzles which are used to simulate rainfall. Valves control the number of spray nozzles in operation, enabling a moving storm to be simulated. Profile gauges and impermeable elements are supplied to allow the easy construction of sheet piling, walls, structures, foundations, reservoirs, bridge pier and dams, etc. Washed silica sand graded 0.2 mm to 1.0 mm should be used as the permeable medium which must either be ordered separately from or supplied by the end user. Coarser material may be used.
Experimental Capability of Hydrology Apparatus:
Features of Hydrology Apparatus:
Specification of Hydrology Apparatus:
Hydrology Apparatus for the study of permeability, fluvial mechanics, ground water abstraction, flood hydrographs and rainfall/run off values. A small centrifugal circulating pump provides supply water to the overhead spray nozzles and end tanks. Located in the base of the upper tank are two wells and an array of pressure tappings, the latter being connected to a multitube manometer by flexible hoses. Rainwater flow is measured by rotameter and three calibrated low capacity notch weirs are used to measure wellwater abstraction and groundwater catchment flows.
Permeable Medium comprising 400 kg of washed and graded high silica sand containing particle sizes 0.2 mm to 1.0 mm.
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