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遇到大旱,水库长时间死水位运行,又必须启用死库容,水库死水位EL97.50 m以下的大坝前粘土铺盖就露出水面。文章根据多年来的水下作业资料,对白龟山水库主坝坝前粘土铺盖裂缝进行检测和分析,结果表明,现阶段水库裂缝大都由深变浅、由宽及窄,之前裂缝的淤平现象对裂缝缝壁是有极大好处的,说明裂缝在向好的方向发展,暂时没有裂缝渗水漏水现象发现,目前主坝坝前粘土铺盖是安全稳定的。
In the event of a severe drought, the reservoir will operate for a long time at the dead-water level, and dead storage must be activated. The dam before the dam with an EL 97.50 m dead water level in the reservoir will be exposed to water. Based on the data of underwater operation for many years, the paper tests and analyzes the clay cover cracks in front of the dam of Baiguishan Reservoir. The results show that most of the cracks in the reservoir are shallow, deep and shallow, Crack seam wall is of great benefit, indicating that the crack in a good direction, there is no leakage of water seepage cracks, the main dam in front of the current bedding is safe and stable.