Investigations were also conducted on the effects of compaction on the reinforcement loads. Moreover, it has been documented that soil compaction has effects on the lateral earth pressures. The pressure is probably great which lead to excessive predictions. conducted similar study on the compaction effect of GRS wall with 50 kPa surcharge loading. The results of their numerical analyses using 55 kPa uniform surcharge pressure showed that it overestimates the measured values.
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On the contrary, Mirmoradi and Ehrlich modeled a GRS wall using Plaxis 2D with compaction-induced stress in the backfill. The findings in their experiments showed that compaction promoted lateral displacement during the construction and reduced lateral displacement because of surcharge load application after construction. , and Mirmoradi and Ehrlich conducted an experimentation on geogrid-reinforced soil (GRS) wall and the effects of compaction near the facing considering light compaction and heavy compaction, and applied surcharge loading. įor decades, several analytical, experimental, and numerical investigations were conducted by various researchers on the effects of compactions on the behavior of reinforced soil retaining walls or MSE walls. Case studies also showed that inconsistent or poor compaction contributed to the failures of MSE walls. It has been documented that an increasing number of geosynthetic-reinforced MSE wall failures had poor and moderate compaction.
![plaxis 2d mse wall plaxis 2d mse wall](https://media.springernature.com/original/springer-static/image/chp%3A10.1007%2F978-981-15-6233-4_16/MediaObjects/484459_1_En_16_Fig19_HTML.png)
Only stipulated guidelines are imposed on the proper application of compaction equipment during construction to prevent wall damage or failure. Keywords: MSE wall compaction effects geogrids steel strips geo-strips Plaxis 3D numerical analysis numerical modeling 1 IntroductionĬompaction loads are not permanent loads and often not considered on the design loads of mechanically stabilized earth (MSE) walls. Therefore, it is important to consider the compaction loads when modeling the MSE walls, so that the lateral displacement at wall facing will not be underestimated during construction and will not be overestimated because of surcharge load application after the construction. In addition, the strains of reinforcement increased significantly during the construction and decreased slightly because of surcharge load application after the construction. The results showed that the horizontal displacement of the MSE wall significantly increased during the construction and decreased because of surcharge load application after the construction.
![plaxis 2d mse wall plaxis 2d mse wall](https://i.ytimg.com/vi/blYy10ZXnrU/maxresdefault.jpg)
PLAXIS 2D MSE WALL SERIES
In this study, a series of numerical analyses was performed to investigate the compaction effect on the behavior of the MSE walls. Therefore, compaction is one of the major parameters affecting the behavior of the mechanically stabilized earth (MSE) wall. When the soil-reinforcement is effectively interacted by the compaction, the deformation of the soil becomes equal to the tensile deformation of the reinforcement material, which means that the soil is bound to the tensile force of the reinforcement material and thus has a great resistance to the tensile deformation. The resistance to tensile deformation of soil is given by the tensile force of the reinforcement in the reinforced soil, and the tensile force of the reinforcement is generated by the frictional force at the soil-reinforcement interface. Soil is weak in tension but strong in compression.