抽水蓄能电站高沥青混凝土面板堆石坝设计  

Design of high asphalt concrete face rockfill dam for a pumped storage power station

作　　者：王樱畯 赵琳 雷显阳 孙檀坚 WANG Yingjun;ZHAO Lin;LEI Xianyang;SUN Tanjian(PowerChina Huadong Engineering Corporation Limited,Hangzhou 311122,China;Pumped Storage Engineering Center of Zhejiang Province,Hangzhou 311122,China)

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,浙江杭州311122 [2]浙江省抽水蓄能工程技术研究中心,浙江杭州311122

出　　处：《人民长江》2022年第1期148-153,共6页Yangtze River

摘　　要：江苏省句容抽水蓄能电站上水库沥青混凝土面板堆石坝最大坝高182.3 m,目前在抽水蓄能电站中还没有该类坝型坝高超过100 m的设计与实践经验,有必要遵循高堆石坝的设计理念,从坝坡稳定、渗流控制、变形控制、面板及连接板设计等多方面进行研究,从而确定技术方案。由于坝体利用库盆开挖的全、强风化玢岩岩脉混合料分区填筑,因而提出了满足变形控制的坝料填筑孔隙率及级配要求。在面板及连接板以下设置了满足反滤准则的反滤料、过渡料。选用了更适应抽蓄运行工况、受力条件好的沥青混凝土面板为防渗体,连接板结构设计保证了防渗体之间的可靠连接。研究成果可为坝高100 m以上的沥青混凝土面板堆石坝工程建设提供参考和借鉴。The maximum dam height of an asphalt concrete face rockfill dam of the upper reservoir of a pumped storage power station in Jurong County,Jiangsu Province is 182.3 m.At present,there is no design and practical experience of asphalt concrete face rockfill dam with a dam height of more than 100 m.According to the design concept of high rockfill dam,the technical scheme was determined from the aspects of dam slope stability,seepage control,deformation control,panel and connecting plate design.The dam body was constructed in district by using the mixture of completely and strongly weathered porphyrite excavated from reservoir basin area.The requirements on porosity and particle gradation of dam materials meeting the deformation control standards were proposed.The filter and transition materials meeting the filter criteria were arranged below the face slab and connecting plate.The asphalt concrete face slab that was more suitable for operation of pumped storage power stations and had good stress condition was selected as anti-seepage body.The structural design of the connecting slab ensures the reliable connection between the anti-seepage bodies.The research results can provide guidance and reference for the construction of asphalt concrete face rockfill dams with height more than 100 m.

关 键 词：沥青混凝土面板堆石坝 渗流控制 变形控制 面板防裂 连接板 抽水蓄能水电站 

分 类 号：TV641[水利工程—水利水电工程]