自来水厂取水构筑物无砂混凝土管渗渠设计  

Design of Non-sand Concrete Pipe Infiltration Canal for Water Intake Structure of Waterworks

作　　者：龙辉 陈小军 陆颂 Long Hui;Chen Xiaojun;Lu Song(Central&Southern China Municipal Engineering Design and Research Institute Co.,Ltd.,Wuhan,China)

机构地区：[1]中国市政工程中南设计研究总院有限公司,湖北武汉

出　　处：《科学技术创新》2024年第13期97-100,共4页Scientific and Technological Innovation

摘　　要：由于现有的无砂混凝土管渗渠的拉应力值超过130 MPa,最小排水厚度大,为此本文研究自来水厂取水构筑物无砂混凝土管渗渠设计。在自来水厂中,敷设双层钢筋混凝土穿孔管作为集水用渗水管,沿河岸设置钢筋混凝土渗沟管,并设置钢网石笼进行加固,排水管沿斜坡延伸至路堤顶部。采用堰流的方式推算出渗渠的出水量,根据渗渠中的滤管进水量和出水量,计算渗渠最小排水厚度确保合理施工。用挖沟机开挖土体,将渗水管利用滑板送至沟底并回填滤料,撒上干净的河沙从而完成施工。测试结果表明,在正常使用条件下,无砂混凝土管渗渠的拉应力值在120~128 MPa范围内;无砂混凝土管渗渠的最小排水厚度为12~16 m,满足设计要求,具有良好的施工效果。Since the tensile stress value of the existing sandless concrete pipe permeate is more than 130 MPa and the minimum drainage thickness is large,this paper studies the design of the sandless concrete pipe permeate of the water intake structure of the waterworks.In the waterworks,the double-layer reinforced concrete perforated pipe is laid as a seepage pipe for water collection,the reinforced concrete seepage trench pipe is set along the bank,and the steel mesh stone cage is set up for reinforcement,and the drainage pipe extends along the slope to the top of the embankment.The minimum drainage thickness of the leachate is calculated according to the inflow and outflow of the filter pipe in the leachate to ensure reasonable construction.The soil is excavated by trenching machine,the seepage pipe is sent to the bottom of the ditch by sliding board,the filter material is backfilled,and the clean river sand is scattered to complete the construction.The test results show that the tensile stress value of the sandless concrete pipe permeate canal is in the range of 120~128 MPa under normal operating conditions.The minimum drainage thickness of the sandless concrete tunnel is 12~16 m,which meets the design requirements and has good construction effect.

关 键 词：自来水厂 构筑物 混凝土 渗渠 

分 类 号：TV13[水利工程—水力学及河流动力学]