填料粒径对经编格栅界面作用特性影响试验研究  

Test Study on Interaction Characteristics Between Warp Knitting Geo-Grid and Different Kinds of Filled Soil with Different Partical Sizes

作　　者：李超[1,2] 陈志伟[1,2] 周勇[1,2] 高逸成 魏军扬[1,2] 郑澄锋[3] 

机构地区：[1]中船第九设计研究院工程有限公司,上海200000 [2]上海海洋工程和船厂水工特种工程技术研究中心,上海200000 [3]南京水利科学研究院岩土工程研究所,南京210024

出　　处：《河南科学》2016年第4期537-541,共5页Henan Science

基　　金：中央级公益性科研院所基本科研业务费专项基金项目(Y312002)

摘　　要：加筋材料与填料间的界面抗剪摩擦强度特性指标在有关加筋土工程中非常关键,对加筋土工程的安全和稳定影响较大.分别选择粉土,砂土,碎石3种填料对应工程常用的细中粗3种不同粒径工程填料与经编土工格栅分别进行室内拉拔试验来研究其界面作用特性.得到了抗剪摩擦强度与法向应力的关系,填料粒径对突变范围影响,颗粒粒径对拉拔试验峰值的影响,并对相关工程设计施工监测给出一定指导建议.In some reinforced earth engineerings,as a key index,the interaction characteristics between reinforcementand soil has great influence on the stability and safety of reinforced earth engineering,it is a key index in the reinforcedearth retaining wall design. In this paper three kinds of soil（silt,sand,and gravel）corresponding to three kinds ofcommonly used filled soil with diffrent partical sizes,and warp knitted geogrid were choosed to study the interfacialinteraction characteristics through drawing test. In this paper,the relationship between shear strength and normalstress was obtained. The influence of particle size on the mutation range,and the influence of particle size on the peakvalue of the drawing test were analyzed. This paper also give some guidance to design,construction and monitoringof relevant engineering.

关 键 词：经编土工格栅 填料粒径 拉拔试验 突变范围 指导建议 

分 类 号：TU46[建筑科学—结构工程]