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| Experimental Research on Strength and Deformation of Root Fiber Stabilized Soil of Ecology Slope |
| NIE Ying1，CHEN Xiao－hong2，FU Zheng－yao1，ZHOU Cheng2，HU Feng－han1，YIN Yuan－chu1，TAO Xiu1 |
| 1．Institute of Construction Engineering，CISDI Chongqing Iron＆Steelmaking Plant Integration Co．，Ltd．，Chongqing 401133，China; 2．Sichuan University，Chengdu，Sichuan 610065，China |
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Abstract Research purposes:In the slope protection design and construction，the vegetative protection slopes is still considered as the routine activities of the landscape engineers． However，if some plants with strong and long root system are used for the slope stabilization along with the soil mechanics and the technology of the environmental geotechnical engineering，the good coordination between land hardening and land green can be realized． So it is necessary to do the experimental research on the root system of the plants for the soil conservation based on learning the research thoughts on the fiber reinforced soil． This paper researches the influence of the 1mm thick and 1 to 2 cm long roots on the strength and deformation of the root composite soil under the condition of the different mixing length and the different mixing volume of roots．
Research conclusions:The experiments show that the roots can enhance soil cohesion c without change of the soil internal friction angle φ and it is similar to the reinforced soil． The roots in the soil can improve the soil scalability．Moreover，the roots of perennial vegetation are good for slope protection．
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Received: 05 January 2011
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2011, Vol. 28 
