摘要
为准确掌握高州水库石骨大坝除险加固过程中的防渗条件,该文结合其工程地质条件及现场试验成果,开展了石骨主坝、副坝的防渗现状分析及评价。分析结果表明:坝体及坝头的渗透性相对均较弱,基本满足本次除险加固要求,但局部坝头受地质构造影响,具有绕坝渗流可能,需对其进行防渗处理;同时,在除险加固过程中,应加强地下水位观测,实时掌握地下水位波动特征,切实保证加固过程安全,有效掌握石骨大坝的防渗现状,为其加固除险设计奠定了理论基础。
In order to accurately grasp the seepage control conditions of Shigu dam in the process of removal and reinforcement of Gaozhou reservoir,this paper analyzes and evaluates the seepage control status of Shigu main dam and auxiliary dam in combination with its engineering geological conditions and field test results.The analysis results show that the permeability of dam body and head is relatively weak,which basically meets the requirements of this reinforcement.However,due to the influence of geological structure,the partial head of dam has the possibility of seepage around the dam,so it needs to be treated with anti-seepage treatment.At the same time,in the reinforcement process,the observation of groundwater level should be strengthened,so as to grasp the fluctuation characteristics of groundwater level in real time and ensure the safety of reinforcement process.Through the analysis of this paper,the current situation of seepage control of Shigu dam is effectively mastered,which lays a theoretical foundation for its reinforcement and danger elimination design.
作者
魏海波
张海发
邓举达
WEI Haibo;ZHANG Haifa;DENG Juda(Guangdong Hydropower Planning & Design Institute, Guangzhou 510635, China;Comprehensive Technology Center of Pearl River Water Resources Commission, Guangzhou 501611, China;Huidong County Renping Waterworks Co.,Ltd,Huidong 516300,China)
出处
《广东水利水电》
2020年第7期44-50,共7页
Guangdong Water Resources and Hydropower
关键词
石骨库区
除险加固
防渗
渗透参数
Shigu reservoir area
danger elimination and reinforcement
seepage control status
seepage parameters
