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Numerical and experimental studies of the mechanical behaviour for compaction grouted soil nails in sandy soil
AbstractA model test was conducted for a newly developed soil nail, the result of which was compared to that of a 3D finite element method (FEM) simulation. The shape angle (β) and friction coefficients (μ) contributed to the difference in pull-out force between the model test and the simulation. Further verifications were conducted, during which the pull-out mechanisms of the soil nail for different β and μ were analysed. It was found that both β and μ have a positive influence on the pull-out force; β only affects the increase rate, while μ influences the overall pull-out force level. Three components were found to govern the pull-out force, with the component applied to the expanded cement bulk surface accounting for approximately 80% of the total. This study proves that the optimal approach for increasing pull-out force is to enlarge the diameter of the cement bulk rather than extend the nail length.
Numerical and experimental studies of the mechanical behaviour for compaction grouted soil nails in sandy soil
AbstractA model test was conducted for a newly developed soil nail, the result of which was compared to that of a 3D finite element method (FEM) simulation. The shape angle (β) and friction coefficients (μ) contributed to the difference in pull-out force between the model test and the simulation. Further verifications were conducted, during which the pull-out mechanisms of the soil nail for different β and μ were analysed. It was found that both β and μ have a positive influence on the pull-out force; β only affects the increase rate, while μ influences the overall pull-out force level. Three components were found to govern the pull-out force, with the component applied to the expanded cement bulk surface accounting for approximately 80% of the total. This study proves that the optimal approach for increasing pull-out force is to enlarge the diameter of the cement bulk rather than extend the nail length.
Numerical and experimental studies of the mechanical behaviour for compaction grouted soil nails in sandy soil
Ye, Xinyu (author) / Wang, Shanyong (author) / Wang, Qiong (author) / Sloan, Scott William (author) / Sheng, Daichao (author)
Computers and Geotechnics ; 90 ; 202-214
2017-06-13
13 pages
Article (Journal)
Electronic Resource
English
British Library Online Contents | 2017
|Experimental investigation of compaction-grouted soil nails
Online Contents | 2017
|Experimental investigation of compaction-grouted soil nails
British Library Online Contents | 2017
|