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Design of Ultimate Resistance of Geogrid-Reinforced Working Platforms for Tracked Plant Over Cohesive Subgrade
Accidents on construction sites have revealed that mainly two mechanisms govern the stability of geosynthetic-reinforced working platforms exposed to high concentrated loads by piling rigs or cranes: (i) punching shear failure; (ii) rotational failure. For the punching shear failure, Meyerhof’s method was modified to account for a punching failure through a geosynthetic-reinforced granular platform overlying soft cohesive subgrade. For the rotational failure, the Kinematic Element Method (KEM) has been applied to examine the equilibrium state, thus enabling a full interaction of soil wedges with the intersecting geosynthetic reinforcement. The set-up models are applied to perform a systematic parametric study by variation of the most influencing parameters affecting the ultimate limit state. Finally, a new simplified model (so-called Hybrid model) has been developed to predict the ultimate bearing capacity of working platforms corresponding to both punching and rotational failure modes.
Design of Ultimate Resistance of Geogrid-Reinforced Working Platforms for Tracked Plant Over Cohesive Subgrade
Accidents on construction sites have revealed that mainly two mechanisms govern the stability of geosynthetic-reinforced working platforms exposed to high concentrated loads by piling rigs or cranes: (i) punching shear failure; (ii) rotational failure. For the punching shear failure, Meyerhof’s method was modified to account for a punching failure through a geosynthetic-reinforced granular platform overlying soft cohesive subgrade. For the rotational failure, the Kinematic Element Method (KEM) has been applied to examine the equilibrium state, thus enabling a full interaction of soil wedges with the intersecting geosynthetic reinforcement. The set-up models are applied to perform a systematic parametric study by variation of the most influencing parameters affecting the ultimate limit state. Finally, a new simplified model (so-called Hybrid model) has been developed to predict the ultimate bearing capacity of working platforms corresponding to both punching and rotational failure modes.
Design of Ultimate Resistance of Geogrid-Reinforced Working Platforms for Tracked Plant Over Cohesive Subgrade
Lecture Notes in Civil Engineering
Duc Long, Phung (editor) / Dung, Nguyen Tien (editor) / Jörg, Klompmaker (author) / Lars, Vollmert (author) / Hoang, Nguyen Ngoc (author)
International Conference on Geotechnics for Sustainable Infrastructure Development ; 2023 ; Hanoi, Vietnam
2024-07-11
12 pages
Article/Chapter (Book)
Electronic Resource
English
| Springer Verlag | 2023
| Springer Verlag | 2023
Working platforms for tracked plant
| Online Contents | 2008
Deflection of Prototype Geosynthetic-Reinforced Working Platforms over Soft Subgrade
| British Library Conference Proceedings | 2006
Deflection of Prototype Geosynthetic-Reinforced Working Platforms over Soft Subgrade
| British Library Conference Proceedings | 2008