吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (3): 712-719.doi: 10.13229/j.cnki.jdxbgxb20170142

• Orginal Article • Previous Articles     Next Articles

Unconfined compressive strength of fiber soil with different porosity

GONG Ya-feng1, SHEN Yang-fan1, TAN Guo-jin1, HAN Chun-peng2, HE Yu-long1   

  1. 1.College of Transportation,Jilin University, Changchun 130022,China;
    2.College of Civil Engineering,Northest Forestry University,Harbin 150040,China
  • Received:2017-02-22 Online:2018-05-20 Published:2018-05-20

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Abstract: To study the influence of unconfined compressive strength of fiber soil with different porosity, the porosity, fiber length and fiber content were taken as the test variables. According to the results of single factor experiment, BBD response surface experiment design method was employed to conduct the unconfined compressive strength tests, and fitting equations of different variables and the response values were established. Test results show that fiber reinforced viscous effects of unconfined compressive strength of the soil is the largest when the fiber length is 9 mm, fiber content is 3‰ and fiber soil porosity is 0.4. Obvious interaction between fiber length and porosity is observed. The results may provide reference for fiber soil engineering application, such as sub grade engineering, foundation engineering design and construction.

Key words: road engineering, unconfined compressive strength, response surface method, porosity, fiber length, fiber content

CLC Number: 

  • TU443
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