摘要
根据渗流理论,导出了大堤采用悬挂式防渗墙时渗流场的水头和坡降分布、管涌突发时的局部涌砂范围以及继续向上游冲蚀发展的距离等计算公式,其中渗流场的计算公式还用三维有限元计算作了验证,并与试验进行了对比。
On the basis of seepage theory the water head and seepage gradient distributions of the flow field in levee adopting the suspended cut-off wall are deduced. The formulas for determining the extent of sand boiling and the possible distance for piping erosion developing towards upstream are proposed. The validity of the formula for calculating the seepage flow field is verified by 3-D FEM calculation result.
出处
《水利学报》
EI
CSCD
北大核心
2005年第2期174-178,共5页
Journal of Hydraulic Engineering
关键词
堤防
管涌
悬挂式墙
涌砂范围
管涌冲蚀
有限元法
levee
piping
suspended cut-off wall
extent of sand boiling
piping erosion
FEM
