| 锦屏电站左岸导流洞衬砌及其与洞壁围岩间相互作用研究 |
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| 引用本文： | 张恩宝,张建海,周钟,唐朝阳. 锦屏电站左岸导流洞衬砌及其与洞壁围岩间相互作用研究[J]. 红水河, 2007, 26(1): 156-160 |
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| 作者姓名： | 张恩宝 张建海 周钟 唐朝阳 |
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| 作者单位： | 四川大学水电学院,成都,610065;中国水电顾问集团成都勘测设计研究院,成都,610072 |
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| 摘 要： | 采用非线性有限元法,对锦屏电站左岸导流洞的典型剖面K0 434 m进行了精细模拟,以洞室开挖后的应力场为初始应力场,研究了衬砌结构应力以及衬砌结构与围岩接触截面间的相对变形和应力,预测了衬砌结构与围岩接触截面间拉应力超过允许脱空应力的部位,分析了左右边墙、底板和顶拱所承受的弯矩、剪力,进而按内外侧不对称配筋进行设计,计算了洞室各部位内外侧所需的配筋面积,为今后的衬砌施工设计提供参考.
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| 关 键 词： | 左岸导流洞 衬砌 有限元法 脱空应力 配筋 锦屏电站 |
| 文章编号： | 1001-408X（2007）01-0156-05 |
| 收稿时间： | 2006-05-29 |
| 修稿时间： | 2006-05-29 |
Study on RC Lining and Interaction between Lining and Surrounding Rock of Left Spillway Tunnel at Jinping Hydropower Station |
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| ZHANG En-bao,ZHANG Jian-hai,ZHOU Zhong,TANG Chao-yang. Study on RC Lining and Interaction between Lining and Surrounding Rock of Left Spillway Tunnel at Jinping Hydropower Station[J]. Hongshui River, 2007, 26(1): 156-160 |
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| Authors: | ZHANG En-bao ZHANG Jian-hai ZHOU Zhong TANG Chao-yang |
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| Abstract: | A typical section(K0 434m) of left spillway tunnel of Jinping Hydropower Station is modeled in detail considering joint distribution by using non-linear finite element method.The internal force of lining and deformation between lining and surrounding rock is studied,and the regions in which the tensile stress exceeds the allowable tensile stress between lining and surrounding rock are determined.Furthermore,according to asymmetric reinforcement design,the demanded area of the reinforced bar is calculated.The result of the study is beneficial to the construction design in the future. |
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| Keywords: | left spillway tunnel lining finite element method the allowable tensile stress reinforcement Jinping Hydropower Station |
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