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1 前言万家寨水利枢纽位于黄河北干流托克托至龙口峡谷河段内,大坝为砼重力坝,最大坝高105m,坝顶长443m。总装机容量为100×6=1080万kW。厂房的总砼用量约6万m~3。该工程所在地年平均气温7.03℃,冬季时间长,而且寒冷干燥。12月至来年的1～2月,月平均最低气温在-11.6～-17.2℃之间,属于严寒地区。必须对砼的强度、耐久性(抗渗性、抗冻性、抗磨蚀性)等进行设计,作出具体规定。2 现浇砼标号设计与分区本工程砼标号设计与分区主要是依据下述原则完成的:①根据《水电站厂房设计规范(SD335-89)》第四章有关内容初步
1 Preface Wanjiazhai Water Control Project is located in the section of Tuoketuo to Longkou Gorge in the northern part of the Yellow River. The dam is a concrete gravity dam with a maximum dam height of 105m and a crest length of 443m. The total installed capacity of 100 × 6 = 1080 million kW. The total amount of concrete plant about 60,000 m ~ 3. The project location where the average annual temperature of 7.03 ℃, long winter time, and cold and dry. From January to February in the coming year of December, the monthly average minimum temperature is between -11.6 and -17.2 ℃, belonging to the severe cold area. Concrete strength, durability (impermeability, frost resistance, abrasion resistance), etc. must be designed to make specific provisions. 2 cast concrete label design and partition The project concrete design and zoning is mainly based on the following principles: ① According to “Hydropower Plant Design Specification (SD335-89)” Chapter IV of the preliminary content