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Volume 37 Issue 8
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WANG Yuan-zhan, LIU Xu-fei, ZHANG Zhi-kai, MA Dian-guang, CUI Yan-qiang. Experimental research on influence of root content on strength of undisturbed and remolded grassroots-reinforced soil[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(8): 1405-1410. DOI: 10.11779/CJGE201508007
Citation: WANG Yuan-zhan, LIU Xu-fei, ZHANG Zhi-kai, MA Dian-guang, CUI Yan-qiang. Experimental research on influence of root content on strength of undisturbed and remolded grassroots-reinforced soil[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(8): 1405-1410. DOI: 10.11779/CJGE201508007
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Experimental research on influence of root content on strength of undisturbed and remolded grassroots-reinforced soil

  • 1. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, National Key Laboratory of Water Conservancy Engineering Simulation and Security, Tianjin University, Tianjin 300072, China;
    2. CCCC-FHDI Engineering Co., Ltd., Guangzhou 510230, China;
    3. Key Laboratory of Engineering Sediment of Ministry of Transport, Tianjin Research Institute for Water Transport Engineering, Tianjin 300456, China;
    4. Key Laboratory of Harbor and Marine Structure Safety of Ministry of Communication, Tianjin Research Institute for Water Transport Engineering, Tianjin 300456, China

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  • Received Date: September 23, 2014
  • Published Date: August 24, 2015
    Graphical Abstract
    • Abstract
  • Laboratory triaxial tests are carried out in order to understand the strength property of undisturbed and remolded grassroots-reinforced soil (UGRS and RGRS). The influence of root content on soil strength is investigated. Moreover, the strength difference between the two soils is quantitatively described by root content. The laboratory test results show that: (1) As to UGRS, the increase of root content has little effect on the internal friction angle, while it can improve the cohesion which increases first and then keeps unchanged; (2) There is an optimal root content in RGRS making soil strength the highest, which increases with the increasing confining pressure; (3) When the root content in RGRS is 4~6 times that in UGRS, the deviator stresses of RGRS and UGRS in the limit equilibrium state are almost equal.
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    • References (12)
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