Baihetan Hydropower Station, the largest and most difficult giant hydropower station under construction in the world, is rushing to the top of the whole line! Baihetan Hydropower Station Dam aerial photo photo: Xie Lei construction panoramic shocking video Baihetan Hydropower Station dam construction process creates a number of records, 300 meter high arch dam seismic parameters ranked first in the world, the world’s first in the 300 meter high arch dam using low heat cement concrete dam, the total hydraulic thrust of the dam up to 16.5 million tons, ranking second in the world, 289 meters high arch dam ranking third in the world, the dam is the pivot of hydropower station Baihetan Hydropower Station dam is a 300 meter high concrete double curvature arch dam with a maximum dam height of 289 meters, a crest arc length of 709 meters, a dam body with 6 diversion bottom outlets, 7 flood discharge deep outlets and 6 flood discharge surface outlets, and a complex structure According to the data of the center, in 2020, the gale weather above grade 7 in the dam area of Baihetan Hydropower Station will reach 251 days, accounting for 70.5% of the whole year
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The climate conditions of the location of Baihetan Hydropower Station will bring many challenges to the concrete pouring of the dam
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During the concrete pouring of Baihetan Hydropower Station, Zhao Yang said: “the gale mainly affects the safe operation of cable crane equipment and the moisture retention of concrete.” Guo Zengguang, director of the dam project Department of the Baihetan project construction department, said, “we have targeted measures for the operation of cable cranes in windy weather to ensure the safe operation distance of cable cranes
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At the same time, we have achieved innovative breakthroughs in concrete moisturizing technology to prevent concrete cracking
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In addition, the staff of the project department have been on duty day and night continuously since the dam was started to ensure the normal progress and construction quality of concrete pouring
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” In addition to climate, the dam of Baihetan Hydropower Station has overcome a number of worldwide technical problems
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The seismic parameters of 300m level super-high concrete arch dam are the first in the world, filling a number of technical gaps in the construction of super-high arch dam under complex geological conditions
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The whole dam of 300m level super-high arch dam uses low heat cement concrete, the application of high-precision construction innovation technology of gate slot phase I, and the safe and efficient operation of double platform seven cable cranes For the first time in the industry, the bank has established an intelligent construction information management platform to realize the fine management and control of the whole construction and operation cycle
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The Baihetan Hydropower Station dam has become the most “smart” dam in history
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Aerial photo of Baihetan Hydropower Station Dam: Chen Huajun learned that the total volume of concrete pouring for the main body of Baihetan dam is 8 million cubic meters, which is divided into 31 dam sections
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Since the pouring, there has been no temperature crack, and all indicators meet the “quality project” standard proposed by the three Gorges group
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In 2019, the 25.7m long core concrete of the dam will be taken out, with smooth and dense core, uniform distribution of aggregate and less bubbles A “report card” of high-quality concrete construction has been submitted
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At the beginning of 2021, the 300m concrete super-high double curvature arch dam will rush to the top of the whole line
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It is expected that the whole line of the dam will be poured to the top in May this year, laying a solid foundation for the commissioning of the first batch of units of the world’s largest hydropower project under construction
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On November 26, 2020, the first batch of dam sections of Baihetan Hydropower Station will be poured to the top The single unit capacity of the station ranks the first in the world
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Baihetan Hydropower Station is the largest hydropower project under construction in the world, with a total installed capacity of 16 million kilowatts
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There are 8 sets of 1 million kilowatt hydro generating units with completely independent intellectual property rights in the underground powerhouse on the left and right banks respectively, ranking the first in the world
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Baihetan Hydropower Station is an important backbone project to implement the national strategy of “power transmission from west to East” and optimize the energy structure
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It is also a landmark project to lead the development of the global hydropower industry
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It is of great significance to increase the supply of clean energy, optimize the energy structure, build the Yangtze River flood control system, promote investment, steady growth, and consolidate the achievements of poverty alleviation
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The construction of the power station will inject strong power into promoting the high-quality development of green energy in Yunnan Province, creating a world-class “green energy brand”, helping Yunnan build a national green energy demonstration Province, realizing low-carbon energy transformation, ensuring energy security, and promoting high-quality economic and social development
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Source: Three Gorges construction, people’s daily, Yunnan daily, Yunnan publishing, engineering construction technology circle
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