摘要
针对官山水库坝址地处河湾地带,坝基存在软弱夹层及结构面,对坝基抗滑稳定不利等问题,文章结合地质钻探成果,围绕坝线经济性、坝型适应性、枢纽布置合理性及坝体抗滑稳定性等关键问题进行了详细分析。分析结果表明,下坝线左右地形更完整,蓄水条件更好。优选的堆石重力坝方案整体布置及结构参数设置合理,地形地质适应性强,经工程处理后软基上建重力坝不存在浅层及深层抗滑问题,可为工程顺利实施提供技术指导。
In view of the fact that the dam site of Guanshan Reservoir is located in the bay area, there are weak interlayers and structural planes in the dam foundation, which are not conducive to the anti-slip stability of the dam foundation. Based on the results of geological drilling, this paper makes a detailed analysis on the key problems of dam line economy, dam type adaptability, rationality of key layout and anti-slip stability of dam. The analysis results show that the left and right topography of the lower dam line is more complete and the water storage conditions are better. The overall layout and structural parameters of the optimized rock-filled gravity dam scheme are reasonable, and the terrain and geology adaptability are strong. After project treatment, the gravity dam built on soft foundation does not have the problem of sliding resistance in shallow deep layers, which can provide technical guidance for the smooth implementation of the project.
作者
邓文强
DENG Wenqiang(Guizhou Water Conservancy Research Institute,Guiyang 550002,China)
出处
《中国水能及电气化》
2023年第1期38-43,共6页
China Water Power & Electrification
基金
高原富营养化湖库水源地保护与生态调控技术研究与示范(黔科合支撑[2021]一般471)。
关键词
堆石重力坝
坝线坝型比选
坝体应力
抗滑稳定
rock-filled gravity dam
comparison of dam line and dam type
dam body stress
anti-slip stability
