| 皖浙山区大坝坝址环境水特征与作用 |
| |
| 引用本文： | 彭汉兴,马晓辉.皖浙山区大坝坝址环境水特征与作用[J].水科学进展,1995,6(2):150-155. |
| |
| 作者姓名： | 彭汉兴 马晓辉 |
| |
| 作者单位： | 1.河海大学地质及岩土工程系 南京210098; |
| |
| 摘 要： | 大坝建成水库蓄水,坝址水环境发生明显变化,致使水岩间相互作用加剧。在渗透压力作用下,弱酸性的水库底层水侵蚀力加强;水对岩石和混凝土的作用造成了坝基地下水的酸性和碱性化;坝基地下水地球化学环境的改变,是造成坝基排水孔胶状析出物排出的主要原因。大坝两侧岸坡和坝基地下水坡降增大,绕坝渗漏的存在,是造成大坝岸坡坝基不稳定的主要因素。
|
| 关 键 词： | 水库 坝址 环境水 |
| 收稿时间： | 1994-10-05 |
Characteristics of Environmental Water around Dam Sites in Wanzhe Mountains |
| |
| Peng hanxing,Li Shujie,Ma Xiaohui.Characteristics of Environmental Water around Dam Sites in Wanzhe Mountains[J].Advances in Water Science,1995,6(2):150-155. |
| |
| Authors: | Peng hanxing Li Shujie Ma Xiaohui |
| |
| Institution: | 1.Hobal Univeristy, Nanjing 210098;2.Xinanjang Wydraulic Power Plant, Jiande 311608 |
| |
| Abstract: | The intensifying interactions between water and rock in the environmental water around some dam sites in China are studied in the paper. Case studies show that the behaviour of the environmental water have been altered significantly since the dams were built and the reservoirs were impounded. The changes consist in(1)Weak acidification of the water on the bottom of reservoirs;(2) Alkalization
or acidification of the ground water under dam foundations;(3)Discharge of eluates occurring at or near the top of some drainage holes drilled into dam foundation; (4)Dissolutio n of curtains;C5)Growth of local uplift pressure values beyond design ones;etc. All these would have important influcence on dam safety,and therefore should attract enough attention. |
| |
| Keywords: | reservoir dam site environmental water |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《水科学进展》浏览原始摘要信息 |
| 点击此处可从《水科学进展》下载免费的PDF全文 |
|
