Study on the jointing technology of Xiandonggou rock-fill concrete dam based on temperature stress simulation
The transverse joints and the spacing of transverse joints have a great influence on the temperature stress of the rockfill concrete gravity dam.In the same environment,the dam without joints or the larger the spacing of transverse joints,the greater the temperature stress and the higher the risk of dam cracking.However,no joint or long distance joint can effectively simplify the construction process,achieve rapid and continuous construction,and fully reflect the advantages of this dam type.In view of the Xiandonggou Reservoir project,this paper studies the whole rockfill concrete dam without jointing and the long distance dam section jointing scheme beyond the specification.Based on different temperature control measures,the 3D simulation analysis of thermal stress is carried out.At the same time,the joints and temperature control scheme of the dam are finally determined,and the beneficial exploration is carried out,which promotes the development of rockfill concrete damming technology.
rockfill concrete damtransverse jointstemperature stresstemperature control measures
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