单向拉伸对土工织物覆砂系统渗透特性的影响试验  

Experimental study of the effect of unidirectional tension on the permeability of geotextile sand covering system

作　　者：肖豪 满晓磊 路承斌 葛颖 戎梦玉 刘慧 XIAO Hao;MAN Xiaolei;LU Chengbin;GE Ying;RONG Mengyu;LIU Hui(College of Civil and Architecture Engineering,Chuzhou University,Chuzhou 239000,China)

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：《黑龙江工程学院学报》2022年第6期13-18,共6页Journal of Heilongjiang Institute of Technology

基　　金：安徽省高校自然科学重点项目(KJ2021A1099);滁州学院开放实验项目(kfsy2318)。

摘　　要：为探究不同方向单向拉伸对土工织物覆砂系统渗透特性的影响,选取同一类型两种不同规格的有纺土工织物,采用梯度比渗透仪分别对在未拉伸、经向拉伸和纬向拉伸状态下的两种土工织物覆砂系统进行渗透试验,并分析经向拉伸和纬向拉伸对透水性能、防淤堵性能和保土性能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时,其透水和防淤堵性能减弱,保土性能增强;在受纬向拉伸时,其透水和防淤堵性能增强,保土性能减弱;土工织物的厚度对其透水性能、保土性能和防淤堵性能也有较大影响。In order to explore the influence of one-way stretching on the penetration characteristics of geotechnical fabric mulch system in different directions, two kinds of woven geotechnical fabrics are selected, the influence of two geotechnical fabric mulch systems in unstrengthed, longitude and latitude stretching are used, and the influence of longitude and parallel stretch on permeability rate, permeability coefficient, sand leakage and gradient ratio are analyzed. The experimental results show that when geotechnical fabrics are stretched forward, their permeability and silt-proofing performance are reduced and soil preservation performance is enhanced. When stretched at latitude, its permeable and silt-proof performance is enhanced, and the soil preservation performance is weakened. The thickness of geotechnical fabric has a great influence on its permeable performance, soil preservation performance and anti-silt blocking performance.

关 键 词：土工织物 经向拉伸 纬向拉伸 渗透特性 梯度比 漏砂量 

分 类 号：T64[一般工业技术]