摘要
水闸等水工建筑物的消力池设有反滤层及排水孔等排水设置,运行过程中排水孔常常发生淤堵、冒沙等破坏现象,导致排渗反滤功能失效,如果按原样修复,工程量大且影响工程正常运行。该文采用减压孔井技术,在原排水孔位置钻孔布置小直径的减压井,可以方便经济快捷地解决排水孔的淤堵和冒沙问题。工程实践表明,减压孔井处理后工程运行正常,社会和经济效益显著。
The stilling pool of sluice are equipped with drainage systems such as filter layer and drainage hole.Clogging and sand-blasting often occur during operation,which leads to failure of filtering system.It will cost large efforts and the operation can be interrupted if reconstruct the drainage hole.Installing relief well with small radius at the position of the original drainage hole,which is the relief-well restoration technique,is able to solve the clogging and sand blasting problem economically and efficiently.Practical project shows that the sluice functions well after installing the relief wells,hence,the new restoration technique gains social and economic benefits.
作者
张挺
贾恺
李川
孙昌利
王飞
余允吉
马勇
ZHANG Ting;JIA Kai;LI Chuan;SUN Changli;WANG Fei;YU Yunji;MA Yong(Guangdong Reserch Institute of Water Resourses and Hydropower,Guangzhou 510635,China;Guangdong Geotechnical Engineering Technology Research Centres,Guangzhou 510635,China)
出处
《广东水利水电》
2025年第4期59-63,共5页
Guangdong Water Resources and Hydropower
关键词
水闸
渗流
排水孔
减压井
sluice
filer layer
drainage hole
relief well
