本文關(guān)鍵詞： RCC重力壩 仿真分析 冷卻水管 溫控措施　出處：《人民黃河》2016年05期 　論文類型：期刊論文

【摘要】：以西藏雅魯藏布江中游某碾壓混凝土重力壩為例,采用三維有限元法仿真分析其9#溢流壩段在不同溫控措施下的溫度場與溫度應(yīng)力場,確定壩體溫度控制標準,并對不同溫控措施進行敏感性分析。結(jié)果表明,最佳溫控措施為:強約束區(qū)、弱約束區(qū)、自由區(qū)的澆筑溫度分別為12、16、20℃;冷卻水管間距1.5 m×1.5 m,一期通水25 d,水溫10℃;低溫季節(jié)覆蓋厚5 cm的保溫板。在推薦溫控措施下,該碾壓混凝土壩的溫度場及溫度應(yīng)力場能夠滿足溫控要求。
[Abstract]:Taking a roller compacted concrete gravity dam in the middle reaches of Yalu Zangbo River in Tibet as an example, the temperature field and temperature stress field of 9# overflow dam section are simulated and analyzed by using three-dimensional finite element method, and the temperature control standard of the dam body is determined. The sensitivity of different temperature control measures is analyzed. The results show that the best temperature control measures are as follows: the pouring temperature of strong confinement zone, weak confinement zone and free zone is 12 ~ 1620 鈩，

本文編號：1546070