Test Study on Interface Properties between Different Geogrids and Clay

Abstract:

With the rapid development of reinforced earth technology, different reinforced materials are also gradually applied to Reinforced earth. In this paper, we focus on the need for the study of interface characteristics between different reinforced materials and clay, by making indoor drawing test with two kinds of reinforced materials commonly used in engineering and the same clay. The test results show that: the drawing strength between the two reinforced materials and clay both increase with the normal stress increasing, both of their strength envelopes are straight lines; In the drawing test between the warp knitted geogrid and clay, the cohesive strength is 6.65kPa, the friction angle is 21.03°; while the drawing test between the geonet and clay, the cohesive strength is 2.9kPa, the friction angle is 10.96°; The average tensile strength of warp knitted geogrid is 26.4% of genet's, while the drawing strength of warp knitted geogrid in the test is about 48.1% of genet's, so when chosing reinforced materials in some engineerings, it is an important factor that we must consider the particle size and gradation of the filled reinforced materials, selecting the most appropriate size effect.

• Periodical: Applied Mechanics and Materials (Volumes 496-500)
• Pages: 2411-2415
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.496-500.2411
• Online since: January 2014
• Authors: Xu Fen Zhu, Jun Yang Wei, Bao Tian Wang, Yong Li Zhang
• Keywords: Cohesive Strength, Friction Angle, Interface Characteristics, Reinforced Materials, Size Effect

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