Advantages of Three Gorges Dam – Largest Water Conservancy Project in the World

Advantages of Three Gorges Dam – Large-scale Project

The total main building construction amount of the Three Gorges Dam Project (including diversion channel) includes 10.283 million cubic meters earth-rock excavation for the building foundation, 2.794 million cubic meters concrete foundation, 3.198 million cubic meters earth-rock filling, 256,500 tons metal structure installment, 26 machine units installment in the hydropower station. All indexes are the top one in the world besides earth-rock filling.

Advantages of Three Gorges Dam – Large Single Building

The Three Gorges Dam is concrete gravity style dam. The Dam is 2345 meters long at the forefront of the water retaining part, and 181 metes high at the highest part. The total concrete amount of this dam is 14.86 million cubic meters. The total cubic amount of Three Gorges Dam is the top one in the world.

The Three Gorges Hydropower Station is located on the behind of the dam. The single-machine capacity, total capacity and annual power generation capacity of the hydropower station are the top one in the world. The transmission project of Three Gorges Hydropower Station includes two direct current transportation lines with 200 KV and eleven AC Transmission Lines with 500 KV. The transmission project scale is the largest one in the world.

The bidirectional five stages ship locks are the highest (113 meters), with most numbers (five stages) inland river ship locks in the world. The available size of single ship lock room (280 meters long, 34 meters wide, 5 meters deep) and the ship tonnage through the ship locks (ten thousand tons fleet) are the standard of top grade inland river ship locks. The largest working head of these ship locks is 49.5 meters, the largest discharge and drain water amount is 260,000 cubic meters, and the largest height of the slope excavation is 170 meters. All of these are the highest standard in the world.

The available size of the ship reception chamber in ship lifting is 120*18*3.5; the total weight is 11800 ton; the largest lifting height is 113 meters, the through capacity is 3000 ton; the water level range in upstream is 30 meters, while in downstream is 12 meters. All of these indexes are higher than world standard. The ship lifting in Three Gorges Dam is the largest-scale and most complex ship lifting in the world.

Advantages of Three Gorges Dam – Metal Structure Is the Top One in the World

The total metal structure amount of Three Gorges Dam Project includes 386 ship locks, 139 headstock gears, 26 diversion penstocks, and 266,500 tons total project amount. The comprehensive project amount of the Three Gorges Dam Project is the top one in the world. About single metal structure, the interior diameter of the diversion penstocks is 12.4 meters; the miter gate of permanent ship locks is 37.75 meters high, while the gate is 39.75 meters high; the largest submergence water level is between 17 meters and 35 meters when it in operation. All of these are top grade in the world.