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Modern zoned-earth embankments employ filter and drain zones to collect and remove seep water and preserve the integrity of the downstream shell zone. An outdated method of zoned earth dam construction used a hydraulic fill to produce a watertight core. Rolled-earth dams may also employ a watertight facing or core in the manner of a rock-fill dam.
Naulong Dam – is an embankment dam currently under construction on the Mula River, about 30 km from Gandawah City in Jhal Magsi district of Balochistan, Pakistan. The zoned earth-filled dam is 186 feet high with a gross storage of 0.242 MAF and a command area of 47,000 acres. It has a hydro power capacity of 4.4 MW. Khisar Dam – under ...
The construction of the canal head works began in March 1948, and was completed a year later. Designed as a zoned earth embankment structure with an impervious central core, a semi-pervious layer on either side of the core, and a layer of rock fill. The semi-pervious layer was built in 1 foot (0.30 m) layers and compacted.
The average base width of the embankment is variously 1,800 m, [10] 800 m from Google Earth and 660 m. [7] So whereas one report [ 10 ] gives an embankment volume of 720×10 6 m 3 , calculations based on the width of the embankment base from these three sources give embankment volumes of 660, 290 and 240×10 6 m 3 respectively.
Naulong Dam is an embankment dam currently under construction on the Mula River, about 30 km from Gandawah City in Jhal Magsi district of Balochistan, Pakistan.Its construction contract has been awarded to Descon Engineering Limited, which is the biggest contractor in Pakistan.
The dam is a 5.5 km (3 mi) earth-fill embankment, with a central concrete structure 360 m long and 48 m high incorporating a small 3 MW hydroelectric power plant. The irrigation pipes and canals were not completed until 1983 and covered only 23,000 hectares compared to 30,000 hectares originally planned.
As part of an irrigation system, a number of sluices at the deeper bund area allows water to be fed into surface canals which distribute water to crops within the tank command area. [8] A surplus/waste weir or the overflow outlet allows water to drain into a downstream tank. [8] The bund or embankment is an uneven bow or crescent-shaped ...
The Pong Dam is a 133 m (436 ft) tall and 1,951 m (6,401 ft) long earth-fill embankment dam with a gravel shell. It is 13.72 m (45 ft) wide at its crest and 610 m (2,001 ft) wide at its base. The total volume of the dam is 35,500,000 m 3 (46,432,247 cu yd) and its crest sits at an elevation of 435.86 m (1,430 ft) above sea level.