Influence of Polymer Binder on the Physical Properties and Stability of Engineering Spoil on a Slope  

作　　者：CHEN Shu-yue GU Wei DAI Quan-yu 

机构地区：[1]State Key Laboratory of Earth Processes and Resource Ecology,Beijing Normal University

出　　处：《Journal of Mountain Science》2013年第1期105-115,共11页山地科学学报（英文）

基　　金：NSFC (National natural science foundation of China) for funding(Grant No. 30870467) this paper

摘　　要：An experiment was performed to study the influence of polymer binders on the physical properties,and stability against a simulated rainfall,of a slope consisting of engineering spoil.Results showed that low polymer binder concentrations(≤500g/m3) could enhance the air permeability and moisture-retaining capacity of the engineering spoil;however,adding more polymer binder made the hardness of the engineering spoil increase and then decline.With the increase of polymer binder concentrations,the surface(0-5cm) permeability of the engineering spoil decreased but the permeability of the lower layers(5-10cm) increased.Polymer binders might reduce runoff and sediment,but the effect becomes weaker with the increase of rainfall.The results of this study have significance for engineering practices.Further experiments are needed to study the effects of binders under other conditions,such as natural rainfall,different slopes,different rock types,different degrees and spoil weathering and different added material,and the chemical interaction between soil and polymer binders.

关 键 词：Polymer binder Engineering spoil Artificial simulation of rainfall 

分 类 号：TU58[建筑科学—建筑技术科学]