粉煤灰中的筋条拉拔试验  

Tensile Test of the Reinforcement in Flyash

作　　者：岳祖润[1] 赵维钧[1] 张兴明[1] 马培德[1] 

机构地区：[1]石家庄铁道学院交通工程系

出　　处：《石家庄铁道学院学报》1994年第2期78-82,共5页Journal of Shijiazhuang Railway Institute

摘　　要：用位移控制式的加荷方式,做了镀锌铁带和混凝土板两种筋条在压实粉煤灰中的室内拉拔试验,分析了拉筋与粉煤灰之间的摩擦系数f值受拔出位移、筋条刚度和埋深、粉煤灰的含水量和密实度以及压实初应力等因素的影响的变化规律,并提出了摩擦系数的设计参考取值。By means of displacement controlled loading, tensile test with two kinds of reinforcements of zinc-plating iron band and concrete plate in flyash has been conducted. The fluctuation of friction coefficient f with such factors as pull displacement,the depth and rigidity of reinforcement, the water content and density of flyash and initial compacted stress is analyzed in this paper. Finally,the reference values of friction coefficient used in design are given.

关 键 词：粉煤灰 加筋土 挡土墙 拉拔 试验 

分 类 号：U417.11[交通运输工程—道路与铁道工程]