| 高寒地区碾压混凝土坝温控防裂与蓄水计划研究 |
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| 引用本文： | 王润英,程欢欢.高寒地区碾压混凝土坝温控防裂与蓄水计划研究[J].科学技术与工程,2013,13(7):1873-1877. |
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| 作者姓名： | 王润英 程欢欢 |
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| 作者单位： | 河海大学,河海大学 |
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| 基金项目： | （1）江苏省自然科学基金资助（BK2010517）；(2)中央高校基本科研业务费专项资金资助项目（2010B02014） |
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| 摘 要： | 针对高寒地区年均气温较低、混凝土内部散热慢、碾压混凝土坝表面容易出现裂缝的问题,分析研究了坝体开裂机理与防裂方法。研究了此类地区坝体蓄水的主要影响因素。阐述了蓄水时间、蓄水水位和施工期温控措施对蓄水的影响;并采用三维有限元方法对工程实例进行计算分析,对同类工程的施工及蓄水计划安排有一定的参考意义。
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| 关 键 词： | 高寒地区 碾压混凝土坝 温控防裂 蓄水 |
| 收稿时间： | 2012/10/23 0:00:00 |
| 修稿时间： | 2012/10/23 0:00:00 |
Study on Temperature Control and Crack Prevention and Impoundment Plan of RCCD in Alpine Area |
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| wang runying and cheng huanhuan.Study on Temperature Control and Crack Prevention and Impoundment Plan of RCCD in Alpine Area[J].Science Technology and Engineering,2013,13(7):1873-1877. |
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| Authors: | wang runying and cheng huanhuan |
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| Institution: | (College of Water Conservancy & Hydroelectric Engineering,Hohai University,Nanjing 210098,P.R.China) |
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| Abstract: | In alpine area,the average annual temperature is constantly lower,and the heat dissipation process of internal concrete is slow,and the surface of RCCD is prone to crack.Aiming at this problem,crack mechanisms of the dam and crack prevention methods are analysed and summarized.The main influence factors of impoundment in these areas are studied,and effect for impoundment of storage time and level and temperature control in construction period are summarized.The 3-D FEM is used to stimulate the engineering examples.It can be referred by the similar projects for construction and water impoundment plan. |
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| Keywords: | alpine area RCCD temperature control and crack prevention impoundment |
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