Study of influence factors on tendons-soil interface characteristic

LING Tian-qing; ZHOU Bin; WU Chun-bo; ZHENG Zhi-neng

doi:10.19818/j.cnki.1671-1637.2009.05.002

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LING Tian-qing, ZHOU Bin, WU Chun-bo, ZHENG Zhi-neng. Study of influence factors on tendons-soil interface characteristic[J]. Journal of Traffic and Transportation Engineering, 2009, 9(5): 7-12. doi: 10.19818/j.cnki.1671-1637.2009.05.002

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LING Tian-qing, ZHOU Bin, WU Chun-bo, ZHENG Zhi-neng. Study of influence factors on tendons-soil interface characteristic[J]. Journal of Traffic and Transportation Engineering, 2009, 9(5): 7-12. doi: 10.19818/j.cnki.1671-1637.2009.05.002

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Study of influence factors on tendons-soil interface characteristic

doi: 10.19818/j.cnki.1671-1637.2009.05.002

1.
School of Civil Engineering and Architecture, Chongqing Jiaotong University, Chongqing 400074, China
2.
Extension Project Management Office of Guangdong Fokai Expressway, Foshan 528231, Guangdong, China
3.
Department of Architecture and Civil Engineering, Logistical Engineering University, Chongqing 400041, China

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Author Bio:
LING Tian-qing(1962-), male, professor, PhD, +86-23-62652702, ilingtq@163.com
Received Date: 2009-07-23
Publish Date: 2009-10-25

Abstract

Abstract

A rib-reinforced slope in expressway's widening engineering was designed, in which holistic and unilateral polyethylene geogrid and steel-plastic composite geobelt were taken as enhancement materials and sand with fine-grained soil was taken as fill.The friction performance of tendons-soil interface was analysed by pull-out test in laboratory under different water contents and compactions.The enhancement effects of original geogrid, the one without horizontal ribs and reinforcement geobelt were compared.It is found that when the fill's water content is higher than its optimum moisture content, the tendons-soil interface strength reduces with the increase of water content, which is obvious.With the rise of the fill's compaction, the interface strength increases unceasingly and the reinforcement effect is distinct.The horizontal ribs' contribution rate to the interface characteristic of reinforcement soil is over 50%.
- road engineering,
- reinforced earth,
- pull-out test,
- water content,
- compaction,
- horizontal rib of geogrid,
- friction performance of tendons-soil interface

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References(12)

References

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Study of influence factors on tendons-soil interface characteristic

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