| 鲜兴灌区渠首泄洪闸闸室结构有限元分析 |
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| 引用本文： | 徐淑琴,乐静,王亚超,高凯茹,郭晓婷,李仲裕.鲜兴灌区渠首泄洪闸闸室结构有限元分析[J].排灌机械工程学报,2021,39(9):944-949. |
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| 作者姓名： | 徐淑琴 乐静 王亚超 高凯茹 郭晓婷 李仲裕 |
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| 作者单位： | 东北农业大学水利与土木工程学院, 黑龙江 哈尔滨150030 |
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| 摘 要： | 以黑龙江省鲜兴灌区渠首改造工程新建的泄洪闸为研究对象,利用三维有限元软件ANSYS建立了闸室结构与地基的整体模型,通过完建期、灌溉期、校核洪水位以及冻胀工况4种工况对闸室结构进行有限元分析,得到闸室结构的应力和位移值;对比分析了4种工况条件下不同荷载组合的闸室结构应力和位移分布规律.结果表明:该闸室结构的位移变化主要以沉降为主,4种工况沉降量普遍较小,最大、最小竖向位移分别为12.069和1.553 mm,未超过规范允许值,均出现在冻胀工况;最大拉应力为1.21 MPa,最大压应力为1.25 MPa,符合设计要求,分别出现在冻胀工况和校核洪水位工况.冻胀工况时靠边墩上游一侧底板顶部有应力集中的现象,需要对其提高配筋率,增加水闸结构整体稳定性.该泄洪闸结构的工作性态良好,能保证安全稳定运行.
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| 关 键 词： | 闸室结构 有限元 冻胀力 应力 位移 鲜兴灌区 |
| 收稿时间： | 2019-11-07 |
Finite element analysis of structure of sluice chamber in Xianxing irrigation area |
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| XU Shuqin,YUE Jing,WANG Yachao,GAO Kairu,GUO Xiaoting,LI Zhongyu.Finite element analysis of structure of sluice chamber in Xianxing irrigation area[J].Journal of Drainage and Irrigation Machinery Engineering,2021,39(9):944-949. |
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| Authors: | XU Shuqin YUE Jing WANG Yachao GAO Kairu GUO Xiaoting LI Zhongyu |
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| Institution: | College of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, Heilongjiang 150030, China |
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| Abstract: | Taking the newly-built flood discharge gate of the canal head reconstruction project in Xianxing irrigation district of Heilongjiang Province as the research object, the overall model of the gate chamber structure and foundation was established using the three-dimensional finite element software ANSYS, and The finite element analysis of the sluice chamber structure was carried out through four working conditions: the completion period, the irrigation period, the check flood level, and the frost heave condition, and the stress and displacement values of the sluice chamber structure were obtained. The distribution law of stress and displacement of the lock chamber structure with different load combinations under four working conditions was compared and analyzed, The results show that: The displacement change of the lock chamber structure is mainly based on settlement. The settlement of the four working conditions is generally small. The maximum vertical displacement is 12.069 mm and the minimum vertical displacement value is 1.553 mm. The value does not exceed the allowable value of the specification, and all appear in the frost heave condition, the maximum tensile stress value is 1.21 MPa, and the maximum compressive stress is 1.25 MPa, which meets the design requirements and appears in frost heave condition and check flood level condition respectively. In the frost heave condition, stress concentration occurs on the top of the bottom plate on the upstream side of the side pier. It is necessary to increase the reinforcement ratio and increase the overall stability of the sluice structure. The structure of the flood discharge gate has good working performance and can ensure safe and stable operation. |
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| Keywords: | chamber construction finite element frost heaving force stress the settlement Xianxing irrigation area |
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