蓄水后，有些重力坝坝踵压应力不是减小，反而呈明显增长。
After reservoir filling, the compression stress in a dam heel does not decrease but markedly increases for the some gravity DAMS.
以坝踵主拉应力区相对宽度为变量，探讨了重力坝坝踵主拉应力区的范围和应力分布规律。
The main tension zone and law of stress distribution are investigated regarding the relative width of diagonal tension stress zone as variable.
探讨了有限单元法应用于重力坝设计及坝踵等应力奇异区域的应力控制标准问题。
The stress singularity in the heel region of gravity DAMS is discussed in order to apply finite dement method directly to dam design.
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