加荷方式与填料密度对筋带摩擦特性的影响  

Influence of pullout test method and fill material density on friction between reinforcement strip and fill material

作　　者：乐茂华[1] 高长胜[2] 赵维炳[2] 顾培[1] 

机构地区：[1]深圳市治理深圳河办公室,广东深圳517300 [2]南京水利科学研究院,江苏南京210029

出　　处：《水利水电科技进展》2008年第4期52-54,共3页Advances in Science and Technology of Water Resources

基　　金：水利部“948”计划科技创新与转化项目(CT200409)

摘　　要：针对加筋土挡土墙工程中确定筋带摩阻力试验方法与影响因素,对筋带在不同拉拔加荷方式和不同密度填料中的摩阻力进行试验。试验结果表明,对于钢质筋带,当拉拔速率控制在1.5 mm/min左右时,连续加荷拉拔与分级加荷拉拔所得到的筋带摩阻力大小基本相等;密度大的填料中的筋带摩阻力明显大于密度小的填料中的筋带摩阻力。In order to study the friction between the reinforcement strips and fill material of a reinforced earth wall, model tests were carried out using different pullout test methods and fill material densities. Test results show that, when the pullout speed is about 1.5 mm/rain and the fill material density is identical, the Metion of the reinforcement strip under continuous loading conditions is almost the same as that under staged loading conditions. It also ean be concluded that the friefion of the reinforcement strip with high fill material density is significantly higher than that with low fill material density.

关 键 词：加筋土挡土墙 筋带 填料 摩阻力 

分 类 号：TU476.4[建筑科学—结构工程] TU411.93[建筑科学—土工工程]