人民长江
人民長江
인민장강
YANGTZE RIVER
2001年
1期
10-11，18
,共3页
永久船闸%衬砌结构%混凝土强度%设计龄期%三峡水利枢纽
永久船閘%襯砌結構%混凝土彊度%設計齡期%三峽水利樞紐
영구선갑%츤체결구%혼응토강도%설계령기%삼협수리추뉴
从三峡永久船闸闸室衬砌墙、输水隧洞和竖井结构的受力特点、运行条件及耐久性要求等方面，分析衬砌结构混凝土利用其后期强度的可行性，从而优化混凝土配合比，减小水泥用量，降低混凝土水化热温升，使夏季浇筑衬砌混凝土能满足永久船闸施工进度的要求。结果表明：闸室衬砌墙混凝土设计标号R28250不算高，不能改为R90250；可将竖井混凝土的设计标号从R28250提高到R90300；隧洞混凝土的设计标号为R28300，可考虑改为R90300。
從三峽永久船閘閘室襯砌牆、輸水隧洞和豎井結構的受力特點、運行條件及耐久性要求等方麵，分析襯砌結構混凝土利用其後期彊度的可行性，從而優化混凝土配閤比，減小水泥用量，降低混凝土水化熱溫升，使夏季澆築襯砌混凝土能滿足永久船閘施工進度的要求。結果錶明：閘室襯砌牆混凝土設計標號R28250不算高，不能改為R90250；可將豎井混凝土的設計標號從R28250提高到R90300；隧洞混凝土的設計標號為R28300，可攷慮改為R90300。
종삼협영구선갑갑실츤체장、수수수동화수정결구적수력특점、운행조건급내구성요구등방면，분석츤체결구혼응토이용기후기강도적가행성，종이우화혼응토배합비，감소수니용량，강저혼응토수화열온승，사하계요축츤체혼응토능만족영구선갑시공진도적요구。결과표명：갑실츤체장혼응토설계표호R28250불산고，불능개위R90250；가장수정혼응토적설계표호종R28250제고도R90300；수동혼응토적설계표호위R28300，가고필개위R90300。
On the basis of stressing characteristics, operational conditionsand endurability requirements of the lining chamber walls, filling tunnels and valve shafts of the permanent shiplocks of the Three Gorges Project, the feasibility of utilizing the later strength of the lining structure is analyzed to optimize the mix proportion of concrete, decrease the cement consumption, lower the temperature rise of concrete due to hydration heat, and make it possible that lining concrete is placed in summer to meet the schedule requirement for the construction of the permanent shiplocks. Analyzed results show that the design grade R28250 of lining concrete used for lock chamber walls is not high, and can not be changed into R90250; for valve shafts, the design grade of concrete can be upgraded from R28250 to R90300; for filling tunnels, the design grade of concrete, R28300, may be changed into R90300.
