工农水库大坝渗流稳定安全鉴定分析与评价  

Safety Assessment Analysis and Evaluation of Seepage Stability for Gongnong Reservoir Dam

作　　者：赵川 苏利军 何欢 Zhao Chuan;Su Lijun;He Huan(Hydraulic Research Institute of Sichuan Province,Chengdu 610072,China;Sichuan Junxin Engineering Project Management Consulting Co.,Ltd.,Chengdu 610091,China;Water Bureau of Dongxing District,Neijiang 641100,China;School of Energy and Power Engineering,Xihua University,Chengdu 610039,China)

机构地区：[1]四川省水利科学研究院,四川成都610072 [2]四川君信工程项目管理咨询有限公司,四川成都610091 [3]四川省内江市东兴区水务局,四川内江641100 [4]西华大学能源与动力工程学院,四川成都610039

出　　处：《沈阳大学学报（自然科学版）》2018年第3期232-236,共5页Journal of Shenyang University：Natural Science

基　　金：国家科技支撑计划资助项目(2014BAL05B01);西华大学流体及动力机械教育部重点实验室(重点研究基地)开放课题(szjj2015-039)

摘　　要：结合四川省内江市东兴区工农水库工程实例,基于非饱和渗流有限元理论,采用AutoBank软件计算分析了大坝当前的渗流稳定安全性态.结果表明:下游坝坡在稳定渗流时的安全系数小于规范要求值,后坝坡浸润线溢出点高程高于排水棱体顶部,坡面存在渗漏现象.说明目前大坝的渗流稳定安全不满足规范要求,属于三类坝,需及时采取措施进行整治,从而保证水库的正常运行.Combined with the example of Gongnong Reservoir in Dongxing District,Neijiang City,Sichuan Province,based on the unsaturated seepage finite element theory,the stability of the dam's current seepage stability was calculated using AutoBank software.The results show that the safety factor of downstream dam slope in steady seepage is smaller than the required value,and the elevation of the overflow line of the later dam slope is higher than the top of the drainage prism,and there is a leakage phenomenon on the slope surface.It shows that the stability and safety of the seepage flow of the dam does not meet the requirements of the code and belongs to the third type of dams.It is necessary to take timely measures to carry out renovations to ensure the normal operation of the reservoir.

关 键 词：土石坝 非饱和渗流 AutoBank 稳定 

分 类 号：TV139.14[水利工程—水力学及河流动力学]