深层透水地基上水闸渗流安全分析与评价  

Seepage safety analysis and evaluation of sluice on deep permeable foundation

作　　者：罗居刚[1] LUO Jugang(Water Resources Research Institute of Anhui Province and Huaihe River Commission,Ministry of Water Resources,Hefei 230088,China)

机构地区：[1]安徽省(水利部淮河水利委员会)水利科学研究院,安徽合肥230088

出　　处：《水利建设与管理》2022年第11期50-55,共6页Water Conservancy Construction and Management

摘　　要：水闸渗流安全评价是水闸安全鉴定工作中的一项重要内容。本文结合实际水闸工程,针对其地基土体性质和水力条件,分别采用渗径系数法、改进阻力系数法和有限元方法,对该工程在防渗最不利的设计挡水工况下的闸基渗流和闸下深层地基渗流进行了计算分析和安全评价。结果表明:闸基防渗长度、闸基水平段和出口段的水力坡降以及闸下深层地基各点土体的水力坡降值均满足规范要求,综合评定该水闸渗流安全等级为A级。该研究成果对同类工程的安全评价工作具有一定的借鉴意义。The seepage safety evaluation of sluice is an important part of the sluice safety appraisal.Based on the actual sluice project,the seepage of sluice foundation and the seepage of deep foundation under sluice are calculated,analyzed and evaluated through the permeability coefficient method,improved resistance coefficient method and finite element method respectively according to the soil properties and hydraulic conditions of the foundation.The results show that the anti-seepage length of the sluice foundation,the hydraulic slope of the horizontal section and outlet section of the sluice foundation,and the hydraulic slope value of the soil at each point of the deep foundation under the sluice meet the specification requirements,and the seepage safety grade of the sluice is A after comprehensive evaluation.The research results have certain reference significance for the safety evaluation of similar projects.

关 键 词：水闸 深层透水地基 闸基渗流 安全评价 

分 类 号：TV36[水利工程—水工结构工程]