摘要
堤防工程在洪水期间发生渗流管涌而形成的险工往往占堤防重点险工的三分之二以上。将管涌产生初期涌水点附近透水层看作是各向同性均质 ,并利用地下水井流理论 ,推求出了管涌形成后的出水流量、临界面及破坏界面孔口尺寸的计算公式 ,并将计算成果与工程实际进行了比较 。
In the initial stage of piping, looking the permeable nearby piping site as isot ropy and homogineous, deducing a formula by the theory of well flow, which can c alculate the volume of flow and the areas of critical surface and destroy surfac e. On the basis of analyzition and comparation, this formula's feasibility is pr oved.
出处
《岩土工程技术》
2003年第1期11-15,共5页
Geotechnical Engineering Technique
关键词
堤坝
管涌出水量
管涌临界面
管涌孔口
孔隙比
flow volume of piping
critical surface of piping
entrance of piping: theoretic calculation
result analysis.
