【摘要】：In this paper,empirical project example, concrete hyperbolic arch dam construction were discussed, come to temperature control of mass concrete construction is a key issue.
At first,this paper describes electricity phylogeny,and which of the dam project construction, detailed hyperbolic arch dam concrete temperature control measures Engineering example, combined with hydrological and meteorological data, from the pouring of concrete arch dam, special parts of the construction, summed up the quality control of concrete construction technology.
(1)Concrete deck uses cable machine warehousing, tiled hierarchical placement, full use of pouring cold seasons, which can effectively ensure the quality of concrete construction.
(2)High temperature and more hot season of the concrete pouring is completed, automatic sprinklers have been pouring concrete for sprinkler maintenance and continuous coverage of the insulation layer within 10 hours,keep moisture deck, the full heat of the concrete, the surface uses water conservation after 10 hours.
(3)Concrete uses Eshengzhongre 42.5 cement, mixed with fly ash I,adding retarding superplasticizer can reduce the temperature rise of concrete hydration heat and prevent early cracking of concrete.
(4)Strictly control the temperature of concrete pouring to prevent the construction of the cracks.
(5)Strengthening the internal water cooling of concrete and surface insulation as a concrete arch dam temperature control, can play a very significant role in the temperature of peak clipping, dynamic control.
(6)buried thermometer in concrete,monitoring the internal temperature of concrete and its changes and to take concrete and effective ways to reduce the maximum temperature,which is the key to preventing cracks in concrete temperature.
In the case through the site, control of concrete placing temperature, pouring temperature, thus ensuring the quality of concrete construction. In the case of on-site pre-planted by the thermometer measured concrete temperature data, to take effective measures to realize the dynamic management of information construction, improve economic efficiency, and provide a reference for related research.