| 碾压混凝土坝温控合理通水方案研究 |
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| 引用本文： | 李同春,武振. 碾压混凝土坝温控合理通水方案研究[J]. 科学技术与工程, 2012, 12(25): 6378-6383 |
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| 作者姓名： | 李同春 武振 |
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| 作者单位： | 河海大学,河海大学 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 结合某碾压混凝土重力坝工程8#坝段的工程实际情况,通过水管冷却效果的有限元单元直接算法,对该坝段进行温度场和温度应力场计算。分析水管周边混凝土温度场及温度应力场分布规律,提出尽早通水及变温通水的温控方案,达到有效降低混凝土最高温度的同时,避免由于通水冷却产生水管周边裂缝。
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| 关 键 词： | 碾压混凝土 水管冷却 直接有限元法 温度场 通水温度 通水时机 |
| 收稿时间： | 2012-05-13 |
| 修稿时间： | 2012-05-13 |
Study of reasonable cooling water scheme for temperature control of RCC dam |
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| litongchun and wuzhen. Study of reasonable cooling water scheme for temperature control of RCC dam[J]. Science Technology and Engineering, 2012, 12(25): 6378-6383 |
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| Authors: | litongchun and wuzhen |
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| Affiliation: | (College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210098,P.R.China) |
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| Abstract: | Combine with the actual situation of dam section NO.8 of one RCC gravity dam, the temperature field and temperature strength field is calculated by direct finite element method through cooling water pipe. Distribution of temperature and strength filed of concrete around the pipe is analyzed and the scheme for temperature control which demands cooling water as soon as possible and water with variable temperature is adopted. The maximum temperature of concrete will decrease effectively and at the same time cracks around the pipe caused by cooling water will be avoided. |
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| Keywords: | RCC water-pipe cooling direct finite element method temperature field temperature of passing water time to pass water |
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