Numerical Investigations on Response of Multistorey Building Frames Subjected to Adjacent Unsupported Excavations

Mandala, Vishnuvardhan; Patel, K. A.; Chavda, Jitesh T.

doi:10.1007/s10706-022-02331-2

Cited by 7 publications

(2 citation statements)

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“…This is due to the lack of detailed field survey data, and the advantage of this model is that it requires fewer soil parameters. Therefore, this relatively simple constitutive model is used [20,33,36]. Although more advanced constitutive models could be employed, there are no reliable data available for calibrating the model [37].…”

Section: Numerical Model Simulation Processmentioning

confidence: 99%

“…In the study of the impact of excavation construction on surrounding buildings, some scholars have simplified the buildings. For instance, methods such as the overload method [16], the equivalent elastic beam method [17,18], and the building structural method [19][20][21] have been employed. Among these methods, the latter can effectively consider the influence of building structural stiffness on the research results [22].…”

Section: Introductionmentioning

confidence: 99%

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Numerical Analysis of the Influence of Deep Excavation on Nearby Pile Foundation Building

Wang,

Yang,

Guo

et al. 2023

Buildings

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In this paper, a numerical simulation is used to establish a three-dimensional model, which considers the height of buildings, the relative position between buildings, and foundation pits. These were studied in detail to investigate the changes in settlement of adjacent buildings and the displacement and internal force of piles caused by deep foundation pit excavation. The results indicate that the number of floors in the building, along with the angle and distance between the building and the excavation pit, have a significant impact on the settlement of the building and the deformation and internal force variation in the piles. For example, when D = 0.1 H, with the increase in the number of floors, the increase in the bending moment of pile 1 at the pile shaft is 62.63 kN·m, and the increase in the bending moment at the pile head is 224.72 kN·m. At this point, the maximum horizontal displacement of the pile shaft occurs at approximately 1.27 H. When θ = 45∘, the maximum difference between the maximum and minimum deformations of the building is 9.71 mm. When D ≤ 1.0 H, the majority of the building is in the primary influence range of surface settlement behind the wall, and the building undergoes a combined deformation of ‘upper convex’ and ‘concave’. When D > 1.0 H, the building predominantly resides in the secondary influence range, and the building undergoes a deformation of ‘upper convex’.

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