›› 2007, Vol. 28 ›› Issue (5): 1009-1014.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Mechanism of road embankment reinforced with geotextile

LIU Jin-long1, LUAN Mao-tian2, 3, WANG Ji-li2, YUAN Fan-fan2   

  1. 1. Department of Civil Engineering, Hefei University, Hefei 230022, China; 2. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 3. Institute of Geotechnical Engineering, School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China
  • Received:2006-02-14 Online:2007-05-10 Published:2013-09-10

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Abstract: The mechanism of road embankment reinforced with geotextile is studied with nonlinear finite element method. By comparative computing of the unreinforced road embankment with reinforced one, it is shown that the road embankment on soft soil foundation can be reinforced with geotextile effectively. The safety of embankment can be enhanced more than 20 ％ with geotextile, and the lateral displacement is reduced 15 %－25 %. Whether the vertical settlement could be reduced with geotextile or not, is dependents on the width of road and characteristic of foundation. With vertical settlement develops greatly, the lateral displacement at consolidation phase become less than that of construction phase. More exact instrument should be used to investigate the variation of lateral displacement at different construction phases. It is shown that there is no influence on dissipation of excess pore water pressure with geotxtile only. In order to reinforce the embankment effectively, it is advised that geotextile should be set on high-stress zone. Furthermore, the limitation of conventional limit equilibrium method used in investigating embankment reinforced with geotextile is analyzed.

Key words: nonlinear finite element method, geotextile, soft soil foundation, settlement, stability analysis

CLC Number: 

  • TU 452
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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