In fact, there is more to the Magic of the Water Cube than this. If you are interested, please continue to search for information and explore its mysteries, right?

So, what is the magic that makes the "Water Cube" so extraordinary?

Kang Wei said: "To truly

understand the magic of the 'Water Cube', we must find the answer from the source of its design and construction."

Water Cube

The water quality is excellent and the water turbidity is extremely low

When you walk into the "Water Cube", the blue and clear water is not only refreshing, but also not at all as unpleasant as in an ordinary swimming pool. A pungent smell.

Kang Wei introduced that the National Swimming Center has adopted internationally advanced water treatment technology and equipment. Compared with the traditional simple chlorine preparation disinfection method, the amount of medicine used is less, the sterilization is thorough, and there is no odor. , does not produce toxic substances, does not irritate human skin, mucous membranes and eyes, and at the same time effectively reduces tap water consumption, saving resources to the greatest extent.

After treatment, the turbidity of the water reached below 0.1 FTU (turbidity unit), which is far lower than the national/national standard of 5 FTU. The pH value of the pool water is controlled between 7.2 and 7.6, which is the optimal pH value of domestic water according to FINA and national standards.

In addition, the National Swimming Center has purchased the world's most advanced pool bottom suction equipment, which automatically cleans and suctions the bottom of the pool after the competition every day, greatly improving the quality of the swimming pool. Sensory trait indicators.

The water temperature has a constant temperature difference of 0.5 degrees Celsius

In terms of pool water temperature control, the general swimming pool water temperature is controlled between 25 and 27 degrees Celsius, while the "Water Cube" strictly controls the temperature through automation. Control between 26.5 and 27.0 degrees Celsius, and the water temperature difference should be within 0.5 degrees Celsius. "This temperature is the most suitable temperature for athletes."

Kang Wei introduced that the water treatment process adopts a water circulation design: circulating water enters the pool from the water inlet at the bottom of the pool, is recovered from the overflow return water tank, and is circulated Purification (dosing, filtering, heating, disinfection). The water is distributed evenly all over the bottom of the pool, so that the water flow is evenly distributed, without short flow, eddy currents and dead water areas, ensuring that the water temperature, free residual chlorine and PH value in different water layers and different parts are uniform and consistent, and pollutants are precipitated at the bottom of the pool. The situation is relatively reduced.

The independent structure of the pool water is not disturbed

The depth of the general swimming pool is between 2 meters and 2.5 meters, while the water depth of the national swimming center competition pool is 3 meters , is currently the only swimming pool in the world with a total depth of 3 meters. Conway said, "Athletes will have water fluctuations during swimming. The deeper the water, the less impact the water fluctuations have on people, and the more conducive it is to creating good results."

In addition, the swimming pool structure adopts Double-layer independent swimming pool structure, the side wall of the swimming pool is completely separated from the surrounding basement wall, and a maintenance channel is formed in the middle. The swimming pool structure is located on the floor of the building, with a sliding layer underneath the structure. The swimming pool cornice is completely disconnected from the surrounding bleacher floors, and the gap in the middle is designed as a pool shore return air outlet. This independent swimming pool structure can avoid any vibrations from the surrounding stands and ensure the stability of the pool water to the maximum extent.

The swimming pool is surrounded by a unique overflow tank design. The overflow tank facade is streamlined, which can effectively reduce overflow noise, ensure that the pool water overflows quickly and smoothly, and effectively eliminates waves generated during movement. Reduce disruption to athletes.

The length accuracy error is only 5 mm

“Some people say that the reason why the Water Cube has broken so many world records is because the swimming lanes are relatively short. This is of course a joke. ”

Kang Wei introduced that FINA has very high requirements for swimming pool accuracy, requiring that the swimming pool length error be controlled within 1 cm. That is to say, the length of the swimming pool's completed surface should be controlled between 50,000 mm and 50,010 mm. "During the construction process of the swimming pool, we carried out precise pre-control, process control and computer tile arrangement on the thickness of each base layer and surface tiles of the swimming pool, achieving high-precision control of the swimming pool construction. The actual measured value of the final swimming pool size was between 50,000 mm and 50,005 mm. time, which is only 1/2 of the error allowed by FINA.

”

The swimming pool adopts the world’s advanced ceramic tile transfer system, with a stable structure, firm pasting of each layer, and good flatness. From the size of the pool body to the accuracy of various markings, embedded parts, and cornices, everything has reached the highest level. The FINA requires that the error is less than the national/national standard.

The fresh air environment is very comfortable. The air in the "Water Cube" is very fresh.

The nozzles on the east and west sides of the competition hall provide air. Kang Wei said: "The competition hall increases the air supply volume 2 hours before the start of the competition, sending 50% more air than normal. Fresh air, a large amount of fresh air carries rich oxygen, which is refreshing. ”

The water cube’s poolside air conditioning and floor heating control the ambient temperature and ground temperature between 25 and 27 degrees Celsius, consistent with the pool water temperature of 26 degrees Celsius, and the poolside wind speed is controlled at 0.2 meters. Within each second, the return air is even, so that there is no feeling of cool wind. As soon as the athletes enter the competition hall, their bodies quickly enter the best state.

The environment is pleasant, the sound and light are exciting, and they enter the "water". "Cube" competition hall, whether athletes, spectators or referees, will have a bright visual impression.

Kang Wei introduced that due to the use of the world's first polyhedral space steel frame structure, combined with ETFE membrane structure The air pillows together form a maintenance structure. The length and width of the swimming hall are more than 120 meters, but there is no need to add any supports in the middle. “A lot of sunlight shines down from the roof of the venue, making people feel like they are in a dreamy world of water molecules. , producing a sense of intimacy returning to nature. ”

The “Water Cube” uses superior sound control to achieve excellent music performance and clear reverberation control in the venue. The competition hall uses certain sound-absorbing materials and equipment to effectively reduce the degree of indoor sound reverberation. , the indoor reverberation design time reaches 2.8 seconds. In terms of electroacoustics, it uses internationally advanced high-directional speakers, and the overall sound effect composed of clear and dynamic music and audience shouts also enhances the excitement of the athletes.

In terms of grandstand design, the "Water Cube" permanent grandstands and temporary grandstands are integrated. The 7,000 spectator seats on each side have good sightlines. The distance between the mixed area and the grandstands is short, so spectators and athletes can interact effectively. It forms a shocking scene.

“The design and construction of the 'Water Cube' embodies the three concepts of Green Olympics, Science and Technology Olympics and Humanistic Olympics. I am very honored and happy to work here. "Kang Wei said proudly.