| 毛昶熙,段祥宝,蔡金傍,羽海英.悬挂式防渗墙控制管涌发展的理论分析[J].水利学报,2005,36(2):0174-0178 |
| 悬挂式防渗墙控制管涌发展的理论分析 |
| Theoretical analysis on piping development control by means of suspended cut-off wall |
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| DOI： |
| 中文关键词: 堤防 管涌 悬挂式墙 涌砂范围 管涌冲蚀 有限元法 |
| 英文关键词: levee piping suspended cut-off wall extent of sand boiling piping erosion FEM |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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 verfied by 3-D FEM calculation result. |
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