某电站冲砂闸基础处理研究及实施  

Research and Implementation of Foundation Treatment Scheme for Sand-washing Sluice of a Hydropower Station

作　　者：李永清 林森[2] LI Yongqing;LIN Sen(Sichuan Institute of Water Resources Planning,Chengdu,Sichuan,610072;Sichuan Shengda Hydropower Development Co.,LTD,Leshan,Sichuan,614900)

机构地区：[1]四川省水利规划研究院,四川成都610072 [2]四川圣达水电开发有限公司,四川乐山614900

出　　处：《四川水力发电》2022年第2期75-79,共5页Sichuan Hydropower

摘　　要：结合工程地质、基础碾压填筑控制等因素,对某水电项目闸室不均匀沉降、渗漏量过大等问题进行研究分析,并对深厚砂卵石基础后期所采取的充填灌浆、地下防渗采用帷幕灌浆等措施效果进行评估,从中可以看到对于深厚覆盖层基础、高填方基础、特别是软弱且不均匀基础,在施工过程中应加强质量管理、保证合理工期、预留充分的自然沉降固结时间,才能有效提高工程质量。Combined with the engineering geological situation,construction process controlling and other factors,this paper studies and analyzes the uneven settlement and excessive seepage of the gate room of a hydropower project,and evaluates the effects of backfill grouting in the later stage of the deep sand and pebble foundation,and curtain grouting for underground seepage prevention.This paper reveals that for foundations with deep overburden,high filling and especially weak and uneven foundations,quality management should be strengthened during construction,reasonable construction period should be guaranteed,and sufficient natural settlement and consolidation time should be reserved.

关 键 词：冲砂闸 灌浆处理 运行监测 防渗处理 

分 类 号：TM622[电气工程—电力系统及自动化] TV673.2[水利工程—水利水电工程]