| 铅厂水电站碾压混凝土重力坝施工期温度应力仿真分析 |
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| 引用本文： | 蒋敏,陈建康,吴震宇,张权,叶新,王晶,杨培章.铅厂水电站碾压混凝土重力坝施工期温度应力仿真分析[J].华北水利水电学院学报,2008,29(6). |
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| 作者姓名： | 蒋敏 陈建康 吴震宇 张权 叶新 王晶 杨培章 |
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| 作者单位： | 四川大学水利水电学院,四川,成都,610065 |
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| 摘 要： | 碾压混凝土坝在施工中容易产生温度裂缝,影响大坝安全.采用三维有限单元法对铅厂水电站碾压混凝土重力坝4#表孔溢流坝段在坝体施工期时的变温度场应力场进行有限元仿真计算分析.分析结果表明:强约束区混凝土温差及浇筑时上下层温差均在规范规定范围内;坝体大部分区域内的应力水平满足允许应力控制标准.最后对可能出现温度裂缝的部位提出了相应的防裂措施.
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| 关 键 词： | 碾压混凝土重力坝 有限元 温度应力 仿真分析 |
Simulational Analysis on Thermal Stress of Qianchang RCC Gravity Dam during Construction Period |
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| JIANG Min,CHEN Jian-kang,WU Zhen-yu,ZHANG Quan,YE Xin,WANG Jing,YANG Pei-zhang.Simulational Analysis on Thermal Stress of Qianchang RCC Gravity Dam during Construction Period[J].Journal of North China Institute of Water Conservancy and Hydroelectric Power,2008,29(6). |
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| Authors: | JIANG Min CHEN Jian-kang WU Zhen-yu ZHANG Quan YE Xin WANG Jing YANG Pei-zhang |
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| Affiliation: | JIANG Min,CHEN Jian-kang,WU Zhen-yu,ZHANG Quan,YE Xin,WANG Jing,YANG Pei-zhang(College of Hydraulic.,Sichuan Univ.,Chengdu 610065,China) |
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| Abstract: | Temperature cracks are quite common in the RCC gravity dam during construction period,which will do harm to dam safety.3D FEM is used to simulate the time-varying temperature field and the stress field of the 4# spillway surface section of the Qianchang RCC gravity dam during construction period.The analytical result shows that,the concrete temperature disparity within strong restraint area and the pouring period are both satisfying the requirement of specification.Meanwhile,the stress level within most are... |
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| Keywords: | RCC gravity dam FEM thermal stress simulational analysis |
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