西南某电站库区堆积体稳定性分析及涌浪预测  

Stability analysis and surge forecast of accumulation at a hydropower station in southwest China

作　　者：朱朋 卢书强[1,2,3] 

机构地区：[1]三峡地区地质灾害与生态环境湖北省协同创新中心,湖北宜昌443002 [2]湖北长江三峡滑坡国家野外科学观测研究站,湖北宜昌443002 [3]成都理工大学地质灾害防治与地质环境保护国家重点实验室,成都610059

出　　处：《南水北调与水利科技》2014年第5期129-132,共4页South-to-North Water Transfers and Water Science & Technology

基　　金：湖北省自然科学基金(2012FFA040;2012FFB03804);湖北省教育厅科学技术研究项目(D20121304);地质灾害防治与地质环境保护国家重点实验室开放基金(SKLGP2012K032)

摘　　要：库区堆积体边坡具有体积大、落差大和坡度陡的特点,对枢纽工程具有潜在威胁。以西南某电站库区堆积体为例,基于GEO-SLOPE分析软件对其稳定性进行计算与评价,滑速计算采用能量法和潘家铮法,涌浪高度计算采用潘家铮法和水科院经验公式法。结果表明:堆积体在蓄水工况下可能产生局部失稳,在下游19km集镇处产生的涌浪高度为0.63m,但总体上形成的涌浪对下游沿岸集镇及大坝影响甚微。A^tract： Accumulation slope has the characteristics of large volume, big fall, and steep slope, which can induce potential threats to the key water projects. In this paper, the stability of an accumulation slope of a hydropower station in southwest China was calculated and evaluated using GEO-SLPOE software. The method of energy and Pan Jiazheng method were adopted to calculate sliding speed, and the surge height was determined by empirical formula method of IWHR and Pan Jiazheng method. The results showed that local instability can occur in the accumulation under storage conditions and the surge height is 0. 63 m at a town of 19 km downstream. However, the surge has little impacts on the downstream towns and the dam. Key words： accumulation; stability analysis; sliding speed; surge height

关 键 词：堆积体 稳定性分析 滑速 涌浪高度 

分 类 号：TV223.3[水利工程—水工结构工程]