摘要
北江大堤石角段修筑在深厚的强透水砂卵石层上，虽经过截渗（高喷墙）、压渗、排渗（减压井）等工程处理，汛期堤内仍有险情出现。通过对险段补充地形、地质的测量勘探，查明原河床与Ｉ级阶地的分界线，通过对该堤段测压管资料的分析整理，对整个渗流场有了全面的认识，采用水平二向渗流有限元对全石角段渗流场进行分析计算，从宏观上较好地反映了实际的渗流状况，明确了危险区域和出险原因，为加固处理提供了依据。
Shijiao segment of North River levee was built on the deep and thick strong permeable sandy scree layer. Although many engineering measures such as cutting, pressing and draining, were adopted, dangers still appeared inside the levee during flood season. The boundary between riverbed and step land I is clearly detected through the renewing of topography measurement and geological exploration. An overall recognition of the entire seepage field is provided by the interpretation and analysis of the piezometer data. The result drawn by the analysis and calculation of two directional horizontal seepage by finite element method shows the overall actual seepage state and declares the dangerous areas and causes, which can be valuable references to other consolidation engineering.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2001年第6期855-858,共4页
Chinese Journal of Rock Mechanics and Engineering
关键词
堤防
渗流
有限元
水文地质
工程地质
Cutting
Finite element method
Levees
Mechanical permeability
