砂卵石地基上一座溢流重力坝的坝基渗透稳定反算分析  

Reverse Calculation and Analysis for permeability Stability of an Overflow Gravity Dam on the Sands Gravels Foundation

作　　者：黎运棻[1] 

机构地区：[1]水利部山西水利水电勘测设计研究院,山西太原030024

出　　处：《山西水利科技》2014年第1期1-4,共4页Shanxi Hydrotechnics

摘　　要：概略介绍了砂卵石地基上一座溢流式重力坝的布置,重点是对坝基防止管涌破坏的稳定性进行反算分析,提出的坝基出口段防止管涌破坏的允许渗流坡降值改进计算式,以及采用综合均值确定坝基出口段允许渗流坡降值,通过反算分析,说明符合实际。This paper essentializes layout of an overflow gravity dam on the sandy gravels foundation, the main point is reverse calculation and analysis of the stability for preventing piping failure in the dam foundation. A modified computer formula has been put forward in the exit section of the dam foundation, it employs a synthetic mean value to determine the permissible percolation slope in the exit section of the dam foundation that has accord with the actual situation through reverse calculation

关 键 词：溢流重力坝 砂卵石地基 抗渗稳定 反算分析 

分 类 号：TV223.4[水利工程—水工结构工程]