| 坝基封闭防渗抽排系统的设计参数探讨 |
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| 引用本文： | 张彦洪,柴军瑞.坝基封闭防渗抽排系统的设计参数探讨[J].水力发电学报,2008,27(6). |
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| 作者姓名： | 张彦洪 柴军瑞 |
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| 作者单位： | 西安理工大学水电学院，甘肃农业大学水利水电工程系，三峡大学土木水电学院 |
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| 基金项目： | 国家自然科学基金、二滩水电开发有限责任公司雅砻江水电开发联合研究基金 |
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| 摘 要： | 对于长期在较高下游水位条件下工作的混凝土重力坝,坝基设置封闭防渗抽排系统可有效降低坝底扬压力,提高坝体稳定性,并节省坝体混凝土方量。本文较为系统地探讨了封闭防渗抽排系统的概念,分析了影响防渗排水几何参数的主要因素,确定了有关设计原则,给出了相应计算方法和算例验证,并对当前规范所给方法进行了讨论。
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| 关 键 词： | 水工结构 渗透压力 水力学方法 封闭防渗抽排系统 参数设计 |
Research on design parameters for the closed system with grouting curtain and drainage-pumping measures on dam foundation |
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| ZHANG Yanhong.Research on design parameters for the closed system with grouting curtain and drainage-pumping measures on dam foundation[J].Journal of Hydroelectric Engineering,2008,27(6). |
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| Authors: | ZHANG Yanhong |
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| Affiliation: | ZHANG Yanhong~ |
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| Abstract: | The closed system with grouting curtain and drainage-pumping measures,which is built on the base of concrete dam,can be lower much of the uplift forces acted on the base of concrete dam to enhance its stability,and can save concrete volume when the downstream water level is high.Some concepts of the closed system with grouting curtain and drainage-pumping measures are studied,the main factors which decide the geometric parameters of the grouting curtain and drainage wells are analysed,the relative design priciples and the caculation method are presented in this peper.Moreover,the current methods in design specification for concrete gravity dams are discussed. |
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| Keywords: | hydraulic structures seepage pressure hydraulic method closed system with grouting curtain and drainage-pumping measure parameter design |
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