水电与新能源
水電與新能源
수전여신능원
HYDROPOWER AND NEW ENERGY
2014年
11期
24-27
,共4页
溪洛渡%双曲拱坝%接缝施工
溪洛渡%雙麯拱壩%接縫施工
계락도%쌍곡공패%접봉시공
Xiluodu dam%double curvature arch dam%joint construction
溪洛渡大坝为混凝土双曲拱坝，采用“一刀切”形式的垂直平面分缝，将拱坝切分31个坝段，共30条横缝31层灌区。混凝土梯级降温方式设计形成合适温度梯度，接缝按自下而上分层，各层自中间向两岸逐步推进施工，确保横缝水泥结石充填饱满，使拱坝各独立坝块连成整体形成拱圈效应，更好地向两岸传递应力。
溪洛渡大壩為混凝土雙麯拱壩，採用“一刀切”形式的垂直平麵分縫，將拱壩切分31箇壩段，共30條橫縫31層灌區。混凝土梯級降溫方式設計形成閤適溫度梯度，接縫按自下而上分層，各層自中間嚮兩岸逐步推進施工，確保橫縫水泥結石充填飽滿，使拱壩各獨立壩塊連成整體形成拱圈效應，更好地嚮兩岸傳遞應力。
계락도대패위혼응토쌍곡공패，채용“일도절”형식적수직평면분봉，장공패절분31개패단，공30조횡봉31층관구。혼응토제급강온방식설계형성합괄온도제도，접봉안자하이상분층，각층자중간향량안축보추진시공，학보횡봉수니결석충전포만，사공패각독립패괴련성정체형성공권효응，경호지향량안전체응력。
In Xiluodu double curvature arch dam , the dam body is divided into 31 dam sections by 30 vertical plane joints and 31 layers of grouting area .A suitable temperature gradient is formed with a step-by-step temperature reducing method.Then, the joint grouting construction is carried out gradually from the bottom to the above , and from the middle to the sides.The joints should be fully filled with the grouting cement to assure all dam blocks are connected as an inte-grated dam.Thus, the arch dam is able to effectively transfer the stresses to the dam abutments with the arch effect .
