摘要
为避免寒冷地区抽水蓄能电站岸坡砌石拔出及止水撕裂破坏的问题,以抽水蓄能电站蒲石河上库冰冻为例,分析了水库水流条件、机组运行规律、气温变化等因素对冰层形成厚度及分布的影响;并实测了典型位置的冰压力,依据实测数据和现场破坏情况分析了冰压力、基土冻胀及风浪、浮力拉拔对上库砌石岸坡的破坏情况。结果表明,浮力拉拔破坏是造成岸坡砌石拔出及止水撕裂破坏的主要原因。
In order to avoid the condition of destruction of masonry slope pulled out and water-stop torn at pumped storage reservoir in cold areas, the freezing situation of the upper reaches of the Pushihe pumped storage power station was studied. The influence of reservoir flow conditions, operating rules of hydropower unit, temperature change conditions on the formulation thickness and distribution of ice was analyzed. The ice pressure of typical position was measured. Based on the measurement data and on-the-spot damage, the destruction situation of masonry slope caused by ice pressure, heave of earth base, wind and waves, tensile damage of buoyancy were analyzed. In conclusion, tensile damage of buoyancy is the main reason for destruction of masonry slope pulled out and water-stop torn.
出处
《水电能源科学》
北大核心
2014年第10期98-101,共4页
Water Resources and Power
关键词
抽水蓄能水库
砌石岸坡
冰压力破坏
基土冻胀
风浪破坏
浮力拉拔破坏
pumped storage reservoir
masonry slope
ice pressure damage
heave of earth base damage
wind and waves damage
tensile damage of buoyancy
