二陈水库大坝安全鉴定中渗流模拟分析  

Seepage Simulation Analysis in the Dam Safety Appraisal of Erchen Reservoir

作　　者：何章飞 孙砚 HE Zhangfei;SUN Yan(Anhui Shui'an Construction Group Co.,LTD,Hefei 230031,China;Anhui Technical College of Water Resources and Hydroelectric Power,Hefei 231603,China)

机构地区：[1]安徽水安建设集团股份有限公司,安徽合肥230031 [2]安徽水利水电职业技术学院,安徽合肥231603

出　　处：《云南水力发电》2024年第7期56-58,共3页Yunnan Water Power

基　　金：安徽省高校自然科学研究重点项目(2023AH053053、2023AH053055)。

摘　　要：以二陈水库为例,由于坝脚渗漏严重,下游坝坡渗流出口无反滤保护,渗出段存在渗透破坏的危险,故利用Autobank设计软件对大坝进行渗流稳定数值模拟,结果表明坝体内整体渗流稳定,下游坝坡出逸点渗透坡降小于允许值,但大坝背水坡局部较陡,发生渗漏现象。水库大坝渗流安全评为“C级”,为大坝除险加固提供依据。Taking Erchen Reservoir as an example,due to severe leakage at the foot of the dam,there is no reverse filtration protection at the downstream dam slope seepage outlet,which poses a risk of seepage damage.This paper uses Autobank design software to numerically simulate the seepage stability of dams.The results indicate that the overall seepage inside the dam is stable,and the seepage gradient at the downstream dam slope escape point is less than the allowable value.However,the local water slope at the back of the dam is steep,resulting in leakage.The seepage safety assessment of the reservoir dam is rated as"C level",providing a basis for dam reinforcement.

关 键 词：二陈水库大坝 渗漏 安全鉴定 除险加固 

分 类 号：TV322[水利工程—水工结构工程] TV641.22