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复杂气候条件下的碾压混凝土斜层铺筑技术
引用本文:计平.复杂气候条件下的碾压混凝土斜层铺筑技术[J].水力发电,2011,37(1).
作者姓名:计平
作者单位:中国水利水电第四工程局有限公司第三分局,云南,丽江,674100
摘    要:金安桥水电站坝址地处中国西南横断山脉,冬季干燥少雨,夏季炎热多雨,全年高温时段持续时间长,年温差小,昼夜温差较大,对大坝碾压混凝土施工不利。为使运输、摊铺、平仓、碾压等工序满足质量要求,在施工中充分利用了具有缩短碾压混凝土层间间隔时间、用较小的浇筑强度覆盖较大的仓面、大规模循环流水作业等特点的斜层铺筑技术。经钻芯取样检验,斜层铺筑法施工质量与国内同类工程的平层铺筑法处于同一水平,且坝体内部的绝热温升控制优于平层铺筑法。

关 键 词:高原气候  碾压混凝土  斜层平推铺筑法  金安桥水电站  

Inclined-layer Placing Technology for RCC Construction under Complex Climate Conditions
Ji Ping.Inclined-layer Placing Technology for RCC Construction under Complex Climate Conditions[J].Water Power,2011,37(1).
Authors:Ji Ping
Affiliation:Ji Ping(The third Branch of Sinohydro Engineering Bureau 4 Co.,Ltd.,Lijiang 674100,Yunnan,China)
Abstract:Jin'anqiao RCC dam locates in mountain range in southwest China.The RCC construction is adversely impacted by the special climate in dam site of dry winter,hot and rainy summer,long-duration high temperature,small temperature difference in a year and large temperature difference between day and night.To ensure the construction quality of RCC,the inclined-layer placing technology was used,by which,the interval between layers can be shortened,a larger constructing surface can be covered with a smaller pouring...
Keywords:plateau climate  RCC  inclined-layer placing method  Jin'anqiao Hydropower Station  
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