Among them, the plane of the West Tower cushion cap of Huangmaohai bridge is oval, with a size of 45 × 35m, 6m high, about the size of 3.5 basketball courts.
After 53 hours of continuous struggle, the concrete pouring of the second layer of the West Tower bearing platform of Huangmaohai bridge of Huangmaohai sea crossing channel project was successfully completed, which marks that Huangmaohai bridge, the main project of the project, officially entered the tower and cable tower construction stage.
The “Party member commando” and “infrastructure pioneer” established by the Huangmaohai project in conjunction with the Party committee give full play to their role, organize the technicians of the project Department of poly Changda T5 contract section of the contractor to arrange in advance, and use “black technology” to control the temperature layer by layer to ensure the pouring quality.
on August 28.
It is poured in two layers.
Source: Guangdong Communications Group..
Huangmaohai project organized the technical backbone to investigate and demonstrate the geology, hydrology and high-temperature climate of the bridge site in advance, and improved the protective construction organization design of the bearing platform and the quality control measures for mass concrete pouring; Actively communicate with the maritime department, coordinate the deceleration of passing ships, and strictly implement wave prevention measures, laying a foundation for safe construction.
The single pouring of the West Tower cushion cap is large and time-consuming, and the on-site temperature is as high as 40 ℃.
Construction site of West Tower bearing platform of Huangmaohai bridge – by putting into ice making production line, cold water and flake ice are added when mixing concrete to control the temperature of concrete during production—— During concrete transportation, the mixer truck shall be covered with “thermal insulation cotton clothes” to keep the temperature in the tank normal and ensure that the storage quality of concrete during transportation is kept within a reasonable range—— During the pouring process, the intelligent temperature control system and water injection cooling circulation system are introduced to intelligently adjust the cooling water temperature and flow, so that the temperature after pouring is controlled within 28 ℃, which effectively solves the technical problem of cracks caused by temperature stress of mass concrete bearing platform and ensures the appearance and quality of bearing platform pouring.
The concrete molding temperature is very easy to rise and is prone to cracking.
Huangmaohai bridge entered the tower and cable tower construction stage at 1:00 a.m.
The first layer of concrete has been poured by the end of July this year.
At the construction site of West Tower bearing platform of Huangmaohai bridge, there are more than 100 ships in the construction sea area of Huangmaohai bridge every day, the average tidal range of water level is about 1.2m, and the construction conditions are extremely complex.
Aerial photograph of Huangmaohai sea crossing road under construction at present, the pile foundation of the main tower of Huangmaohai bridge and Gaolan Port Bridge, the main works of Huangmaohai project, have been completed, and the sea approach bridge and land section bridge, tunnel and subgrade are also being promoted simultaneously.
Huangmaohai bridge is the largest three tower highway cable-stayed bridge under construction in the world.
