反滤回灌井口井损的实验研究  

Experimental Study of Well Loss of Recharge Wellhead with Filter Layer

作　　者：何家鹏 李旺林[1] 李玉喜 张晓娇 李欣眙 HE Jiapeng;LI Wanglin;LI Yuxi;ZHANG Xiaojiao;LI Xinyi(School of Resources and Environment,University of Jinan,Jinan 250022,China)

机构地区：[1]济南大学资源与环境学院,山东济南250022

出　　处：《济南大学学报（自然科学版）》2018年第3期250-255,共6页Journal of University of Jinan(Science and Technology)

基　　金：山东省科技计划项目(2013GSF11606);山东省自然科学基金项目(ZR2014EFM023);水利部公益性科研专项(201401024)

摘　　要：为分析反滤回灌井口过流时的局部井损,研制了实验装置并进行井损实验,总结了井损的特点和规律。结果表明:反滤回灌井口局部井损主要包括土工布、井口井壁和井口内部水流转向所产生的井损;井口井壁产生的局部井损与流速成正比,圆形井口井壁产生的局部井损小于方形井口井壁产生的局部井损;井口井壁产生的局部井损与开孔率成反比;土工布产生的局部井损与水流流速成正比,与开孔率成反比;井口内部水流转向产生的局部井损与回灌水头成正比,与井口类型无关。To analyze the local well loss of the flow over the recharge wellhead with filter layer,a well loss test device was developed,the well loss test was performed,and the characteristics and laws of well loss of flow were summarized.The results show that the local well loss of recharge wellhead with filter layer mainly includes the well loss produced by the geotextiles,the wellhead wall and the flow direction changed into the interior of wellhead.The local well loss of wellhead wall is directly proportional to the flow rate,and the well loss of the round wellhead wall is smaller than that of the square wellhead wall.The local well loss of wellhead wall is inversely proportional to the opening rate.The local well loss caused by the geotextiles is directly proportional to the flow rate and inversely proportional to the opening rate.The local well loss caused by the flow direction changed into the interior of wellhead is proportional to the recharge head,but is not related to the wellhead types.

关 键 词：回灌井 反滤回灌井口 井损 

分 类 号：TU411.93[建筑科学—岩土工程]