| 基于施工仿真的水电站蜗壳保压优化方案分析 |
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| 引用本文： | 许新勇,蒋〓莉,郭〓磊. 基于施工仿真的水电站蜗壳保压优化方案分析[J]. 水电能源科学, 2012, 30(6): 151-153 |
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| 作者姓名： | 许新勇 蒋〓莉 郭〓磊 |
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| 作者单位： | 华北水利水电学院 水利学院,河南郑州,450011 |
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| 基金项目： | 国家自然科学基金资助项目(51109081)；华北水利水电学院高层次人才基金资助项目(2010017) |
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| 摘 要： | 蜗壳结构是电站厂房的核心结构物,为确保大型水电站安全稳定运行,优选合理的保压值是关键。以某大型水电站充水保压蜗壳结构为例,基于ABAQUS平台引入混凝土损伤塑性模型,采用仿真算法优化分析了蜗壳结构保压值,探讨了钢衬应力的规律和间隙开度变化的不均匀性,并分析了保压值变化对结构损伤分布和发展过程的影响,优选了适合工程的保压值。
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| 关 键 词： | 水电站 充水保压 施工仿真 塑性损伤 |
Optimization Planning of Pressure Maintaining of Spiral Case Based on Construction Simulation |
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| XU Xinyong,JIANG Li and GUO Lei. Optimization Planning of Pressure Maintaining of Spiral Case Based on Construction Simulation[J]. International Journal Hydroelectric Energy, 2012, 30(6): 151-153 |
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| Authors: | XU Xinyong JIANG Li GUO Lei |
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| Affiliation: | School of Water Conservancy North China University of Water Resources and Electric Power, Zhengzhou 450011, China;School of Water Conservancy North China University of Water Resources and Electric Power, Zhengzhou 450011, China;School of Water Conservancy North China University of Water Resources and Electric Power, Zhengzhou 450011, China |
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| Abstract: | The spiral case is one of important structures of hydropower station. The optimization pressure value is the key factors for stable operation of large hydropower plant. A finite element model of spiral case is established by analyzing optimized pressure value based on simulation method. The damaged plasticity model is introduced based on ABAQUS platform. The stress distribution of steel lining and the variation law of opening gap are discussed. The development of concrete damage with the pressure water head is analyzed and the reasonable pressure value is put forward for project. |
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