摘要
面板脱空是造成混凝土面板堆石坝面板裂缝的重要原因,会对面板乃至大坝的安全稳定造成不利影响。文章以关门山水库大坝为例,利用数值模拟方法研究了库水位升降变化对面板脱空的影响。结果显示,库水位的循环升降作用,会加剧大坝混凝土面板的脱空现象,对面板乃至大坝的安全稳定运行造成不利影响,需要在设计和运行中采取有针对性的措施,保证大坝的安全稳定运行。
Face slab disengagement is an important reason for the crack of concrete face rockfill dam,thereby adversely affecting the safety and stability of face slab and even the dam.Guanmenshan Reservoir Dam is adopted as an example in the paper.The influence of the rise and fall change of the reservoir water level on face slab disengagement is studied by the numerical simulation method.The results show that the cyclic rise and fall of the reservoir water level will aggravate the void phenomenon of the concrete face slab of the dam,and adversely affect the safe and stable operation of the face slab and even the dam.Therefore,it is necessary to take targeted measures in the design and operation to ensure the safe and stable operation of the dam.
作者
杨旭前
YANG Xuqian(Liaoning Runzhoog Water Supply Co.,Ltd,Shenyang 110000,China)
出处
《中国水能及电气化》
2021年第4期47-50,共4页
China Water Power & Electrification
关键词
水位升降
面板脱空
数值模拟
water level rise and fall
face slab disengagement
numerical simulation
