心墙体积的改变对高土石坝内渗流场的影响研究

Research on Influence of Change of Core Wall Volume on Seepage Field in a High Earth-rock Fill Dam

在心墙土石坝设计中,心墙是土石坝的防渗主体,它对坝的稳定起着至关重要的作用。该文结合工程的实际情况,考虑非饱和区的影响,在不同心墙体积的情况下,分别对其进行渗流计算分析,来探讨渗流场的分布情况和自由面的变化规律,为大坝结构设计和施工提供基础资料和参考依据。

In designing of a core wall type earth - rockfill dam the core wall is the impermeable part of the darn. It is of utmost importance to stability of the dam. This paper makes an approach to the distribution condition of seepage fields and the laws of change of free seepage surface by means of seeI？age calculation and analysis for different volumes of the core wall taking into account the influence of unsaturated zone according to the actual conditions of the project. The paper provides basic reference data and basis for design and construction of dams of this kind.