不同布设方式无砂混凝土板渗流特性试验  

Test on the Seepage Characteristics of Sandless Concrete Slabs in Different Layout Methods

作　　者：耿宽 李永业[1] 孙西欢[1] GENG Kuan;LI Yongye;SUN Xihuan(College of Hydraulic Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学水利科学与工程学院,山西太原030024

出　　处：《人民黄河》2023年第8期165-168,共4页Yellow River

基　　金：国家自然科学基金资助项目(51179116)。

摘　　要：为分析不同布设方式对无砂混凝土板渗流特性的影响,通过模型试验和理论分析相结合的方法,在清水和含沙水试验下对水平、竖直布设的无砂混凝土板渗流特性进行了研究。结果表明:无砂混凝土板渗流能力受到容重、布设方式的影响,不论布设方式和容重如何变化,随着压力水头的增大,无砂混凝土板的渗流能力都呈现逐渐增大的趋势;水平布设无砂混凝土板的渗流量大于竖直布设的;清水试验无砂混凝土板的渗流量大于含沙水试验的;清水试验下容重越小的无砂混凝土板渗流量受布设方式影响越大;清水试验无砂混凝土板渗流流态为紊流,含沙水试验流态为过渡流。In order to analyze the influence of different layout methods to the seepage characteristics of sandless concrete slabs,the seepage characteristics of sandless concrete slabs laid horizontally and vertically were studied under the combination of model test and theoretical anal⁃ysis.The results show that the seepage capacity of sandless concrete slabs is affected by the bulk density and layout mode,no matter how the layout mode and bulk density change,with the increase of the pressure head,the seepage capacity of the sandless concrete slabs shows a gradual increase trend.The infiltration flow of horizontally laid sandless concrete slabs is greater than that of vertically laid out;the seepage flow of the sandless concrete slab in the clear water test is greater than that of the sediment⁃laden water test;under the water test,the smaller the bulk density of the sandless concrete slab,the greater the influence of the layout method;the seepage flow state of the sandless concrete slab of the clear water test is turbulent flow,and the flow state of the sediment⁃laden water test is the transition flow.

关 键 词：无砂混凝土板 布设方式 容重 渗流特性 流态 

分 类 号：TV642.3[水利工程—水利水电工程]