Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/66122
Title: Theoretical model for calculating peak pullout resistance of soil nails under grouting pressure
Authors: Hong, C
Yin, J 
Zhang, M
Zhang, Y
Liu, L
Wang, X
Keywords: Dilation angle
Grouting pressure
Overburden stress
Peak pullout resistance
Soil nails
Issue Date: 2016
Publisher: 东南大学
Source: 东南大学学报. 自然科学版 (Journal of Southeast University. Natural science edition), 2016, v. 46, p. 204-209 How to cite?
Journal: 东南大学学报. 自然科学版 (Journal of Southeast University. Natural science edition) 
Abstract: To investigate the correlation between peak pullout resistance of soil nails and some key parameters, and quantify the influences of grouting pressure, overburden stress and dilation angle of soils on the peak pullout resistance of soil nails, the correlation between cavity expansion theory and surrounding pressure on failure surface of soil nails was firstly proposed. Then, the relationship of the normal stress on the failure surface and peak pullout resistance of soil nails was derived according to Mohr-Column failure theory. In addition, the calculation method for peak pullout resistance was validated by laboratory test data and model data. Finally, a parametric study was carried out according to the proposed simple model to investigate the influence of different parameters on the peak pullout resistance of soil nails. This model was simple to be used in the design. Parametric study indicates that the grouting pressure, overburden stress and failure surface distance have interactive influence on the peak pullout resistance of soil nails, and their increasing rates under grouting pressure are much larger than that without grouting pressure.
URI: http://hdl.handle.net/10397/66122
ISSN: 1001-0505
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