Experiment on Improving the Engineering Property of Xigeda Soil with Lime and Polypropylene Fiber
To explore the methods to improve the engineering property of Xigeda soil in Panxi regions with polypropylene fiber and lime reinforcement,polypropylene fiber of different content with the length of 2.5 cm was added to the Xigeda soil to make improved soil samples.Then,loaded swelling experiment,compression experiment without lateral confine-ment,and direct shear experiment were conducted.The results showed that polypropylene fiber reinforcement could not only reduce the expansibility of lime soil,but also improve the mechanical traits,such as compression-resistant,shear-resistant and deformation properties of Xigeda soil.The direct shear experiment showed that the increased force of friction between the lime soil particles and polypropylene fibers significantly increased the cohesion of in soil samples.Conclu-sion:Polypropylene fiber reinforcement can effectively improve the engineering properties of Xigeda lime soil.When 0.3%polypropylene fiber is added,the effect of polypropylene fiber reinforcement of Xigeda lime soil can be maximized.
NETL
NSTL
万方数据
维普
