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陈村拱坝拱冠部位有巨大的进水口结构悬出上游坝体,上游面坝身105米高程以下为倒悬,下游面坝身105米高程附近存在横贯拱冠所有坝块的水平裂缝,坝顶存在深度达3～5米的垂直裂缝,因此,拱冠坝体向上游位移的不利运行状态问题引起了人们的关注。本文以实测资料和有限元计算值为依据,结合坝体结构特点,对高温+低水位,高温+较高水位,低温+特低水位等运行状态进行了分析,提出了一些看法,供各有关方面参考。
The arch crown of Chencun arch dam has a huge inlet structure hanging over the upstream dam body. Upstream dam body below 105m elevation is upside down. There is horizontal cracks across all dam blocks of the arch crown at a height of 105m downstream of dam body. At the top there are vertical cracks of 3 to 5 meters in depth. Therefore, the problem of the unfavorable running status of the dam arch body to the upstream displacement arouses people’s attention. Based on the measured data and the calculated value of the finite element method, this paper analyzes the operating conditions of the high temperature + low water level, high temperature + high water level, low temperature + extra low water level based on the measured data and the finite element calculated values, and puts forward some suggestions for the relevant For reference.