Experimental and Numerical Investigations of Reinforced Soil Wall Subjected to Impact Loading

Lu, Liantao; Lin, Haoxin; Wang, Zongjian; Liang, Xiao; Ma, Shuwen; Arai, K.

doi:10.1007/s00603-021-02579-9

Cited by 6 publications

(2 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Extensive studies have been conducted in this regard, demonstrating that the structures can effectively intercept rockfall impact energies exceeding 5000 kJ (Lambert et al, 2009). Moreover, geosynthetic have proven to be efficacious in reducing wall stresses (Lu et al, 2021). This structure is characterized by a substantial spatial footprint and is associated with the risk of overturning during construction in steep terrain (Peila et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Dynamic Response of Pile-Slab Retaining Wall Structure under Rockfall Impact

Zou,

Luo,

et al. 2023

Preprint

View full text Add to dashboard Cite

Abstract. The numerical experiments investigate the dynamic response of a pile-slab retaining wall under the impact of rockfall. Firstly, a full-scale numerical model of a four-span pile-slab retaining wall satisfying specification requirements is established. Secondly, the numerical experiments investigate the dynamic response of a pile-slab retaining wall under different impact centers and velocities. Finally, the maximum impact energy that the structure can resist is predicted. Results reveal that: (1) During the impact process, the stress, strain, and concrete damage of the structure gradually spread from the impact center to the entire structure and ultimately result in permanent deformation; (2) The lateral displacement of pile at ground surface and the number of damage failure units under the pile as the impact center is greater than those under the slab as impact center. It shows that the impact position has a significant effect on the stability of the structure.(3) The impact force, interaction force, lateral displacement of pile at ground surface, and concrete damage is increased with the increase of impact velocity. Under pile as the impact center (slab as the impact center), when the velocity increases from 15 m/s to 30 m/s, the impact force increases by 1.42, 1.91, and 2.41 times (1.41, 1.90, and 2.41 times), the interaction force increases by 1.25, 1.47, and 1.68 times (1.24, 1.47, and 1.68 times), and the maximum lateral displacement of pile at ground surface increases by 1.57, 2.24, and 3 times (1.55, 2.23, and 3 times). (4) Utilizing this relationship between the impact velocity and the maximum lateral displacement of pile at ground surface, the estimated maximum impact energy that the pile-slab retaining wall can withstand is 905 kJ in this study when the structure top is taken as the impact point. Impact resistance of the structure optimized 1.814 times compared to traditional reinforced concrete retaining walls.

show abstract

Section: Introductionmentioning

confidence: 99%

Dynamic Response of Pile-Slab Retaining Wall Structure under Rockfall Impact

Zou,

Luo,

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Several studies have dealt with the behavior of footings constructed on stabilized sand walls [52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67][68][69][70]. Some authors are interested in both experimental and theoretical investigations of RS structures.…”

Section: Introductionmentioning

confidence: 99%

Laboratory Testing and Theoretical Modeling of Deformations of Reinforced Soil Wall

Kazimierowicz-Frankowska¹,

Kulczykowski²

2022

Applied Sciences

View full text Add to dashboard Cite

This paper presents the results of an experimental investigation of a vertical reinforced soil (RS) wall. The structure was built on a laboratory scale. Horizontal displacements on the surface of the model wall were monitored at the end of construction and during surcharge application (as post-construction displacements). The experimental results were compared with their theoretical predictions. The accuracy of the selected analytical approach was examined to predict deformations of the RS structure under external loading. It was shown that the proposed original and relatively simple analytical method for estimating structural deformation can be successfully used in practice (the average difference between the recorded and calculated values of deformation did not exceed 25%). From a scientific point of view, an important element of this work was the analysis of the effect of friction between the backfill and the side walls of the test box on the measured displacements. For the investigated case, it was shown that the impact of this element caused a reduction in the value of external loading of more than 60%. The final results may be particularly useful in the design process of structures used in transportation engineering (bridge abutments), where deformation limit values cannot be exceeded.

show abstract