The maximum dam height of Baihetan Hydropower Station is 289 meters, and the dam body has 6 diversion bottom holes, 7 flood discharge deep holes and 6 flood discharge surface holes. The dam * * * is divided into 3 1 dam section, and the total concrete pouring volume of the dam body is 8.03 million cubic meters.

Builders have overcome the world-class problem of columnar jointed basalt, the foundation of ultra-high arch dam. Low-heat cement is used for the first time in the whole dam, and there is no temperature crack since the pouring, which indicates that China has completely mastered the key technology of temperature control and crack prevention of mass concrete.

Achievements of Baihetan Hydropower Station

Baihetan Hydropower Station has created six world firsts, two world firsts and two world firsts so far: the single machine capacity is 6.5438+0.000MW, ranking first in the world; The underground cavern group ranks first in the world, with a total length of 2 17 km.

The dam is 289 meters high, equivalent to 100 story high, ranking third in the world. The maximum flood discharge reaches 42,348 cubic meters per second, which can fill the whole West Lake in 6 minutes. The flood discharge capacity of the hub is the third in the world. The reservoir has a storage capacity of 20.627 billion cubic meters, which is equivalent to the total volume of Dongting Lake.

The above contents refer to the whole dam of Baihetan Hydropower Station of Sichuan Provincial People's Government.