Mechanical properties of re-packed reinforced Earth embankment during service stage

Hou, Yujie; Wang, Bo; Huang, Liang; He, Wentao; Zhu, Jiahua; Wang, Junjie

doi:10.1080/13467581.2021.1930010

Cited by 2 publications

(1 citation statement)

References 20 publications

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“…Implementation of earth reinforcement and embankment soil stabilization can reduce these problems. Yujiea et al, [1] studied the mechanical properties of reinforced soil embankments during its service life. The review utilizes nearby estimated information examination and mathematical reenactment to set up the traffic load model and the killjoy harm model.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Influence of Asphalt Stabilization on the Deformation Resistance of Reinforced Earth Embankment Model

Sarsam,

Al-Saidi,

Falih

2024

Ifcee 2024

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Construction of roadway embankment with Gypseous soil exhibits hazard for the long-term performance. The Gypseous soil is known to exhibit suitable strength after compaction; however, it loses the strength when subjected to environmental issues such as rain and the variation in the water table level. In the present investigation, an attempt has been made to implement Gypseous soil with 84.2 % of gypsum content which was obtained from Tikret region, (180 km north of Baghdad) in the preparation of an embankment model in the laboratory. The Gypseous soil was compacted to 95 % of its maximum pre-determined dry unit weight of (16.4 kN/m 3 ) in six layers in a metal box with the dimensions of (50 x 50 x 30) cm and each layer is of 5 cm thickness to form a control embankment model, and subjected to vertical stress. Test was carried out using proving ring of 5 kN capacity. The vertical and lateral deformations of the embankment model were monitored until failure. The second embankment model was constructed using an aluminum reinforcing strips spread at five layers of the embankment height. The aluminum reinforcing strips was laid at equal spaces between each of them, which means that each layer was reinforced with four strips at a spacing of 10 cm center to center. The vertical and lateral deformations were also monitored until failure. In the third embankment model, the Gypseous soil was stabilized with M-30 cutback asphalt, then the embankment model was constructed using an aluminum reinforcing strips as in the second model. The fourth embankment model was constructed using the aluminum strips and a stabilized Gypseous soil with cationic emulsion. It was observed that the reinforced and the emulsion stabilized embankment models exhibits lower vertical deformation of (40 and 30) % as compared with the control embankment. On the other hand, the lateral deformation at the third embankment layer declines by (50, 39.2, and 35.7) % when the emulsion, cutback, and earth reinforcements were implemented respectively as compared with the control model. However, the lateral deformation at the fifth layer declines by (68.4, 55.5, and 68.4) % when the emulsion, cutback, and earth reinforcements were implemented respectively as compared with the control model. It was concluded that implementation of cutback and emulsion stabilization in addition to the earth reinforcement can better sustain vertical stresses applied on the embankment surface and present a sustainable solution for the roadway infrastructure.

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Section: Introductionmentioning

confidence: 99%

Assessing the Influence of Asphalt Stabilization on the Deformation Resistance of Reinforced Earth Embankment Model

Sarsam,

Al-Saidi,

Falih

2024

Ifcee 2024

View full text Add to dashboard Cite

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Field Characterization of Dynamic Response of Geocell-Reinforced Aeolian Sand Subgrade under Live Traffic

Gao

Liu

et al. 2023

Applied Sciences

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In desert regions, aeolian sand is abundant, but it is not suitable to be used directly as the upper roadbed filler for highways. Generally, gravelly soil is mined around the desert as upper roadbed fill, resulting in high engineering expenses for road construction in the desert hinterland. Geocells have a significant reinforcing effect on aeolian sand. However, in the completed desert highway, the dynamic performance of geocell-reinforced aeolian sand as an upper layer of roadbed fill has not been studied. Using a field test method, the dynamic performance of geocell-reinforced aeolian sand as an upper roadbed fill is examined. The results show that the majority of the frequency distribution of road vibration is within 30 Hz. In the horizontal direction, the actual vibration amplitude decay on the side of geocell-reinforced aeolian sand is slower but smoother than on the side of gravelly soils. In vibration velocity, the work area depth of the geocell-reinforced aeolian sand side of the roadbed is less than that of the gravelly soil side. The maximum difference can reach 0.55 m. As far as vibration velocity is concerned, the 30 cm gravelly soils can be substituted with 15 cm geocell-reinforced aeolian sands as the upper roadbed. In summary, the dynamic attenuation characteristics of geocell-reinforced aeolian sand are superior to gravelly soils. The research results provide a reference for the design of the desert highway subgrade.

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Mechanical properties of re-packed reinforced Earth embankment during service stage

Cited by 2 publications

References 20 publications

Assessing the Influence of Asphalt Stabilization on the Deformation Resistance of Reinforced Earth Embankment Model

Assessing the Influence of Asphalt Stabilization on the Deformation Resistance of Reinforced Earth Embankment Model

Field Characterization of Dynamic Response of Geocell-Reinforced Aeolian Sand Subgrade under Live Traffic

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