Model Tests for Measurement of Lateral Earth Pressure on Retaining Wall with the Relieving Platform Using Jumoonjin Sand

Moon, In-Jong; Kim, Byoung-Il; Yoo, Wan-Kyu; Park, Yong-Seok

doi:10.5762/kais.2013.14.11.5923

Cited by 15 publications

(4 citation statements)

References 1 publication

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“…The stress deflects only when approaching the unloading plate gradually due to the action of the plate on the soil, and the earth pressure distribution presents a certain difference. Below the unloading plate, the theoretical solution of earth pressure under the two displacement modes is closer to results of Moon et al (2013), and Chauhan and Dasaka (2021); however, the corresponding numerical solution of earth pressure is larger.…”

Section: Casesupporting

confidence: 68%

“…Above the unloading plate, the numerical and theoretical solutions of the earth pressure under the two displacement modes do not significantly differ from the results of Moon et al (2013), Chauhan and Dasaka (2021). The stress deflects only when approaching the unloading plate gradually due to the action of the plate on the soil, and the earth pressure distribution presents a certain difference.…”

Section: Casementioning

confidence: 67%

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Pseudo-static Solution of Active Earth Pressure Against Relief Shelf Retaining Wall Rotating Around Heel Under Seismic Load

Que,

Zhang,

Chen

et al. 2023

Preprint

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In practical engineering, the design process of most retaining walls must take into account earthquake resistance. It is crucial to prevent the overturning of retaining walls, particularly when the foundation's bearing capacity is weak. In this paper, the seismic active earth pressure (ES) of a relieving retaining wall in RB displacement mode is taken as the research object. By observing shear dissipation graphs across various operating conditions, the distribution law of each sliding surface is summarized, and three typical failure modes are obtained. The corresponding calculation model was established, and the earth pressure in each region was derived by the inclined strip method combined with the limit equilibrium method. Then the resultant force and its action point were obtained. By comparing the theoretical and numerical solutions with the previous studies, the correctness of the derived formula is proved, and it is found that the formula can be applied to static conditions. The variation of earth pressure distribution and resultant force under seismic acceleration are studied. The unloading plate’s position, the wall heel’s length, and seismic acceleration will weaken the unloading effect. On the contrary, the length of the unloading plate and the friction angle of filling will strengthen the unloading effect.

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Section: Casesupporting

confidence: 68%

Section: Casementioning

confidence: 67%

Pseudo-static Solution of Active Earth Pressure Against Relief Shelf Retaining Wall Rotating Around Heel Under Seismic Load

Que,

Zhang,

Chen

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…And model test results were compared with the analyzed results by the 2D finite element method and values driven from the theoretical equation. Model tests between the retaining wall with a relieving platform and the cantilever retaining wall were performed and showed that the reduction of the lateral earth pressure and deformation of the wall was indicated clearly on the retaining wall with a relieving platform [13,14]. And the overall stability was increased by the relieving platform.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Influencing Factors on the Deformation of Sheet Pile Wall with a Relieving Platform

Zhang

Wang

Hu³

et al. 2021

Advances in Materials Science and Engineering

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Owing to the complexity of the sheet pile wall with a relieving platform, there are a large number of factors that affect the mechanical and deformation characteristics of the wall structure. Moreover, studying the influencing factors on the deformation of the retaining wall is beneficial in the selection of design parameters and deformation control. 28 groups of test models of the retaining wall structure are designed to analyze the effect on the deformation of rib pillars and determine the reasonable width and buried depth of the unloading board in this paper. The tests are conducted with and without the unloading board, and different widths and buried depths of the unloading board are also considered. The findings show that, without the external load, the reasonable board width and buried depth are 0.70 times and 0.53 times the wall height. With the external load, the reasonable board width is 0.35 times the wall height, and the large board width cannot effectively reduce the deformation of rib pillars, and the reasonable board width is 0.60 times the wall height. When both the external load and board width are relatively small, the reasonable buried depth is 0.53 times the wall height. However, when the external load is large, the reasonable buried depth is 0.70 times the wall height. The results also show that the setting of the unloading board effectively suppresses the deformation of rib pillars and controls the maximum deformation within an allowable range of the specification.

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“…e retaining wall is not a new type of construction in countries such as China, Korea, India, and Russia. Model tests have been performed to determine the distribution of the Earth pressure and confirm the effect of decreasing the lateral Earth pressure on the retaining wall with relieving platform [18][19][20]. From the model tests, comparisons between the retaining wall with relieving platform and the cantilever retaining wall show that the reduction of the lateral Earth pressure and deformation of wall are indicated clearly on the retaining wall with a relieving platform, and the overall stability is increased by the relieving platform [21].…”

Section: Introductionmentioning

confidence: 99%

Study on Model and Tests of Sheet Pile Wall with a Relieving Platform

Zhang

Wang

Hu³

et al. 2020

Advances in Civil Engineering

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A new type of retaining wall, the sheet pile wall with a relieving platform, is introduced in this paper. Based on the prototype retaining wall with a height of 12 meters, the model tests with a geometric similarity ratio of 7 are designed and we focus on the model production and analysis on the test results. Some comparative analyses between the measured values and the calculation values by using the theoretical calculation method and finite difference method are carried out, including Earth pressure behind the wall, prepile resistance force, the bending moment, and the deformation of rib pillars in the retaining wall. The results show that Earth pressure behind the wall has a linear increase with the depth and lies between Rankine Earth pressure and Earth pressure at rest. Moreover, the prepile resistance force can be approximated by the m method, and the bending moment can be also used for approximate calculation by the m method and is larger than the results calculated by the finite difference method. It is also observed that there is a zero-displacement point on the pile bottom, and the Earth pressure above the point behind the pile develops from Earth pressure at rest to the active Earth pressure; the Earth pressure under the point behind the pile develops from Earth pressure at rest to the passive Earth pressure. Therefore, the Earth pressure behind the bottom wall is larger than the calculated value by the Rankine theory. Finally, the displacement of the rib pillars is greater than the calculated results using the finite difference method and exceeds the standard requirements, owing to the failure of the retaining wall, and the unloading board needs to be constructed to improve the retaining wall’s behaviour. These findings verify the model’s credibility and provide an underpinning for studying the behavior of the retaining wall.

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Model Tests for Measurement of Lateral Earth Pressure on Retaining Wall with the Relieving Platform Using Jumoonjin Sand

Cited by 15 publications

References 1 publication

Pseudo-static Solution of Active Earth Pressure Against Relief Shelf Retaining Wall Rotating Around Heel Under Seismic Load

Pseudo-static Solution of Active Earth Pressure Against Relief Shelf Retaining Wall Rotating Around Heel Under Seismic Load

Investigation of Influencing Factors on the Deformation of Sheet Pile Wall with a Relieving Platform

Study on Model and Tests of Sheet Pile Wall with a Relieving Platform

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