- Title
- Numerical and experimental studies of the mechanical behaviour for compaction grouted soil nails in sandy soil
- Creator
- Ye, Xinyu; Wang, Shanyong; Wang, Qiong; Sloan, Scott William; Sheng, Daichao
- Relation
- Funding BodyARCGrant NumberFT140100019 and ARC DP140100509 http://purl.org/au-research/grants/arc/DP140100509
- Relation
- Computers and Geotechnics Vol. 90, Issue October 2017, p. 202-214
- Publisher Link
- http://dx.doi.org/10.1016/j.compgeo.2017.06.011
- Publisher
- Pergamon Press
- Resource Type
- journal article
- Date
- 2017
- Description
- A 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.
- Subject
- compaction grouting; soil nail; FEM; experimental tests
- Identifier
- http://hdl.handle.net/1959.13/1383446
- Identifier
- uon:31946
- Identifier
- ISSN:0266-352X
- Language
- eng
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