渗管取水工程出水浊度影响因素的试验研究  

Experimental study on influence of turbidity of effluent from seepage pipe intake project

作　　者：刘双喜 黄海涛 LIU Shuangxi;HUANG Haitao(Xinjiang Jingou River Basin Administration Bureau,Shawan,Xinjiang 832100,China;College of Water Conservancy and Architectural Engineering,Shihezi University,Shihezi,Xinjiang 832003,China)

机构地区：[1]新疆金沟河流域管理局,新疆沙湾832100 [2]石河子大学水利建筑工程学院,新疆石河子832003

出　　处：《石河子大学学报（自然科学版）》2021年第1期62-66,共5页Journal of Shihezi University(Natural Science)

基　　金：国家自然科学基金(11362019)。

摘　　要：为给渗管取水工程的设计及整治提供理论依据,本文采用室内试验的方法对渗管取水工程出水浊度的影响因素进行研究。结果表明:渗管出水浊度随着闸门开启时间的增长而下降,随着天然河床砂厚度的增加而减小;在渗流过程中受到来流流速的影响,当横向流速主导时,渗管出流浊度有所增加;选择渗透系数为24.81 m/d的天然河床砂,天然河床砂厚度从0增至0.5 m再增至0.9 m时,系统综合系数不断下降,渗管出水浊度有效降低,当天然河床砂厚度达0.9 m时,出水浊度降至1.63 NTU;在天然河床砂厚度、来流流量和渠道原水浊度3个因素中,天然河床砂厚度的改变对渗管出水浊度的影响最大。To provide theoretical basis for the design and regulation of the seepage pipe intake project,this paper uses the method of indoor test to study the influence of different factors on the turbidity of the seepage pipe effluentang. The results show that the turbidity of seepage pipe outflow decreases when the gate opened;the turbidity of seepage pipe outflow decreases with the increase of the thickness of natural riverbed sand,and is affected by the incoming flow velocity in the seepage process. When the transverse flow velocity is dominant,the turbidity of seepage pipe outflow increases;and the natural riverbed sand with a permeability coefficient of 24. 81 m/d is selected. When the thickness of natural riverbed sand increases from 0 to 0. 5 m and then to 0. 9 m,the comprehensive coefficient of the system decreases continuously,and the turbidity of seepage pipe effluent decreases effectively. When the thickness of natural riverbed sand reaches 0. 9 m,the turbidity of effluent can be reduced to 1. 63 NTU. Among these factors,the thickness of natural riverbed sand,the inflow flow rate and the turbidity of raw water in canals will be improved,has the greatest influence on turbidity of seepage pipe effluent.

关 键 词：渗管取水 出水浊度 天然河床砂 综合渗透系数 原水浊度 

分 类 号：TV276.74[水利工程]