Performance of the Jet Grouted Sloping Berm as a Support to the Diaphragm Wall in an Excavation

So, Arthur K.O.

doi:10.1007/978-3-030-80155-7_6

Sustainable Civil Infrastructures

2021

DOI: 10.1007/978-3-030-80155-7_6

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Performance of the Jet Grouted Sloping Berm as a Support to the Diaphragm Wall in an Excavation

Arthur K.O. So¹

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2024

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Numerical Investigation of Earth Berm Effects on Prefabricated Recyclable Supporting Structure in Circular Excavations

Chen,

Guo,

Cao

2024

Applied Sciences

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The prefabricated recyclable supporting structure (PRSS) is an innovative support system that integrates a steel skeleton with polymer waterproof technology. Earth berms are extensively adopted to support the PRSS, but there is limited understanding on the factors influencing their behavior in circular excavations. In this paper, a numerical model is first validated with a case history in Henan, China. Afterwards, the geometric parameters of the earth berms, including the height (H), the top width (B1), and the bottom width (B2), on the behavior of the PRSS, are investigated. It is shown that, by increasing the height, top width and bottom width of earth berms, the lateral deflections, and bending moments of supporting piles, as well as the ground surface settlements, tend to decrease. However, the reduction effect of these parameters diminishes as well. Moreover, the raised effective formation level considering the effect of the earth berms on stability and deformation analyses is discussed. The factor of the safety of the excavation is almost doubled when axisymmetric conditions are considered compared to plane strain conditions. In deformation analysis, the raised effective formation level increases with the height of the earth berms until a steady value is reached.

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Numerical Investigation of Earth Berm Effects on Prefabricated Recyclable Supporting Structure in Circular Excavations

Chen,

Guo,

Cao

2024

Applied Sciences

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Performance of the Jet Grouted Sloping Berm as a Support to the Diaphragm Wall in an Excavation

Cited by 1 publication

References 24 publications

Numerical Investigation of Earth Berm Effects on Prefabricated Recyclable Supporting Structure in Circular Excavations

Numerical Investigation of Earth Berm Effects on Prefabricated Recyclable Supporting Structure in Circular Excavations

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