中美土石坝渗透稳定计算对比分析  

Comparative Analysis of Seepage Stability Calculation of Earth-rock Dams between Chinese and American Criteria

作　　者：薛瑞[1] 蔺蕾蕾 薛晶 赵珊 XUE Rui;LIN Leilei;XUE Jing;ZHAO Shan(PowerChina Northwest Engineering Corporation Limited,Xi'an 710065,China)

机构地区：[1]中国电建集团西北勘测设计研究院有限公司

出　　处：《西北水电》2019年第6期9-11,共3页Northwest Hydropower

摘　　要：渗透变形的形式主要有管涌、流土、接触冲刷和接触流失等。通过对比中美两国土石坝渗透稳定设计的标准,分析了中美标准在渗透稳定计算内容、渗透变形判别方法、临界水力坡降及安全控制标准等方面的差异,指出了采用美国标准在土石坝渗透稳定设计中应注意的问题,为后续准确使用国外标准提供参考。The forms of seepage deformation mainly comprise piping,flowing soil,contact erosion and contact loss etc..By comparing the Chinese and American criteria for the design of the seepage stability of earth-rock dams,the differences between the calculation of seepage stability,seepage deformation identification methods,critical hydraulic gradients,and safety control standards are respectively analyzed through which the problems in the design of dam seepage stability with American criterion are demonstrated.Meanwhile,the paper provides a reference for the subsequent use of foreign design criteria.

关 键 词：土石坝 渗透稳定计算 流土 管涌 中美标准对比 

分 类 号：TV641[水利工程—水利水电工程] TV139.14