黄壁庄水库副坝冒泡翻滚原因分析  

Cause analysis of secondary dam bubbling and tumbling in Huangbizhuang Reservoir

作　　者：田鑫 TIAN Xin(Hebei Water Conservancy Planning&Design Institute Co.Ltd,Shijiazhuang 050021,China)

机构地区：[1]河北省水利规划设计研究院有限公司,石家庄050021

出　　处：《水科学与工程技术》2022年第6期82-84,共3页Water Sciences and Engineering Technology

摘　　要：2016年7月21日,河北省黄壁庄水库副坝坝前水面出现较大范围的冒泡翻滚现象。对于这种冒泡现象,采取了补充勘察、试验、观测资料分析等方法,结合副坝结构、地形地质条件及库水位变化特征等对副坝展开研究。通过勘察、试验结果,认为近坝库底存在5m左右非饱和含气地层,其上部有黏土铺盖,结合坝体防渗墙和均质坝的弱透水性,库水位快速上升后,气体逸出受阻,伴随高水位地层水体侵入渗透,形成气体沿铺盖薄弱位置逐步出逸的冒泡翻滚现象。On July 21,2016,the water surface in front of the secondary dam of Huangbizhuang Reservoir in Hebei Province appeared a wide range of bubbling and rolling phenomenon.For this bubble phenomenon,we take the supplementary survey,test,observation data analysis and other methods,and on this basis,combined with the secondary dam structure,topographic and geological conditions and reservoir water level change characteristics of the secondary dam research. ? Through the sur vey,the results that exist at the bottom 5 m or so close to the dam,unsaturated gas-bearing formation,the upper clay bedclothes,combined with the dam seepage and homogeneous dam weak water permeability,water rapidly rising,gas evolution,with high water level underground water seepage,forming gas along the bedclothes weak position gradually from “bubble back” phenomenon.

关 键 词：水库 坝体 气体逸出 

分 类 号：TV222[水利工程—水工结构工程]