单向拉伸对编织布覆砂系统渗透特性的影响  

Effect of Unidirectional Tension on Permeability of Braided Cloth Sand Covering System

作　　者：胡佳宝 满晓磊 葛颖 路承斌 刘慧 HUJiabao;MAN Xiaolei;GE Ying;LU Chengbin;LIU Hui(School of Civil and Architectural Engineering,Chuzhou University,Chuzhou,Anhui 239000)

机构地区：[1]滁州学院土木与建筑工程学院,安徽滁州239000

出　　处：《武夷学院学报》2023年第12期75-80,共6页Journal of Wuyi University

基　　金：安徽高校自然科学研究项目重点项目(KJ2021A1099);国家级大学生创新创业项目(202210377027)。

摘　　要：为探究单向拉伸对土工织物覆砂系统渗透特性的影响,选取工程中常用的一种土工织物,并采用梯度比渗透仪对不同拉应变下的土工织物覆砂系统进行渗透试验,分析不同拉应变对透水率、漏砂量、流速、梯度比等渗透特性参数的影响。试验结果表明:土工织物在受经向拉伸状态下,其透水性能和防淤堵性能先下降后上升,保土性能先上升后下降,当拉应力为3%时,保土性能最优,透水性能和防淤堵性能最差;在纬向拉伸状态下,其保土性能持续下降,透水性能和防淤堵性能持续上升。In order to explore the influence of unidirectional tension in different directions on the permeability of geotextile sand covering system,two kinds of woven geotextiles of the same type and different specifications were selected,and the permeability tests of two kinds of geotextile sand covering systems under non tension,warp and weft tension were carried out by gradient specific permeability meter,and the effects of warp and weft tension on the permeability Influence of seepage characteristic parameters such as anti silting performance and soil conservation performance.The test results show that when the geotextile is stretched in the warp direction,its water permeability and anti silting properties are weakened,and its soil retention performance is enhanced;Under zonal tension,its water permeability and anti silting performance are enhanced,and its soil conservation performance is weakened;The thickness of geotextile also has a great influence on its water permeability,soil retention and anti silting performance.

关 键 词：土工织物 单向拉伸 渗透特性 梯度比 漏砂量 

分 类 号：TV49[水利工程—水工结构工程]