Influence of Vehicle Load Mode on the Response of an Asymmetrically-Loaded Deep Excavation

Liu, Bo; Zhang, Dingwen; Xi, Peisheng

doi:10.1007/s12205-019-0511-6

Cited by 13 publications

(8 citation statements)

References 24 publications

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“…Therefore, many scholars have analyzed the interaction between the excavations of the foundation pit and those of the surrounding grounds. With regard to the influence of surcharge loading on the foundation pit, Liu et al [4] performed field monitoring and numerical simulation to study the influence of the asymmetric load of vehicles on deep foundation pits beside the highway. The results indicated that vehicular loads can seriously influence the response of deep excavation.…”

Section: State Of the Artmentioning

confidence: 99%

“…Excessive ground settlement can affect the function of the surrounding buildings and pipelines, even cause collapse [2]. In addition, the presence of buildings, vehicles, and other forms of surcharge loading on the ground causes additional stress [3,4] to the supporting structure, thereby increasing the deflection and ground settlement. The shear strength and loading path of soil will also affect the stability of foundation pit [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…The analysis shows that the traditional double-row vertical piles and oblique-straight alternate piles fail to meet the requirements of deep excavations. Few scholars have investigated the risky surcharge loading [4] of doublerow piles.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of Inclination Angle on the Response of Double-row Retaining Piles: Experimental and Numerical Investigation

Ye¹,

Wang²,

Huang

et al. 2020

Teh. vjesn.

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The excavation depth of foundation pits has been increasing along with the continuous development of underground space and high-rise buildings. As a result, traditional double-row vertical piles cannot meet the ground settlement and deflection requirements. This study proposed a double-row pile optimization method to extend the suitability of double-row retaining piles to greater excavation depth. The optimization model was established by adjusting the inclination angle of the front and rear piles. Physical scale model tests were performed to analyze the effect of the inclination angle on the pile head displacements and bending moments during excavations and step loadings using three schemes, namely, traditional double-row piles with vertical piles, double-row contiguous retaining piles with batter pile in the front row, and double-row contiguous retaining piles with batter pile in both rows. Numerical simulations were also conducted to verify the effectiveness of the inclination angle adjustment in optimizing the double-row piles. Results indicate that the increase in the displacement and bending moment of the double-row contiguous retaining batter piles is not evident during excavation and step loading when compared with those of the double-row vertical piles and the double-row contiguous retaining piles with batter pile in the front row. Thus, double-row contiguous retaining batter piles can be used in deep foundation pits. The tilt angle is also excessively small to reduce the lateral displacement of the foundation pit, and the optimal tilt angle is 8°-16°. Although the embedment depth can influence the deformation of the double-row contiguous retaining batter piles significantly, a critical embedment depth may be reached. The findings of this study can provide references for the optimization of double-row piles in foundation pits.

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Section: State Of the Artmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Inclination Angle on the Response of Double-row Retaining Piles: Experimental and Numerical Investigation

Ye¹,

Wang²,

Huang

et al. 2020

Teh. vjesn.

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“…Existing foundation design theories are based on a single side, which cannot logically account for such a condition. Some scholars have also attempted to undertake theoretical research Liu et al, 2019), but due to the unique peculiarities of the working condition, these studies have always lacked practical relevance.…”

Section: Introductionmentioning

confidence: 99%

“…Some scholars have utilized numerical modeling techniques to optimize the design of each side in asymmetric pits. On the side with greater loads, especially in projects with special requirements for displacement control, it is required to optimize the deformation situation based on the results of numerical simulations to meet the requirements (Liu et al, 2019;Ou et al, 2020). On the smaller loaded side, it is possible to reduce the reinforcement of the supporting structure appropriately (Lin et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Research on the spatial effect of foundation pit under asymmetric loads

Lin

Jiang

et al. 2022

Front. Mater.

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This research describes the evolution of the spatial effects of foundation pits considering internal support and external loads. Based on the existing concept of “plane strain ratio”, the term “plane strain ratio considering maximum surface settlement” is proposed to characterize the spatial effects of an asymmetric foundation pit. A series of finite element model calculations were carried out using the Nanchang Aixi Lake foundation pit, including 1) the calculation of simulated actual conditions, 2) the calculation of simulated full symmetric load, and 3) the calculation of simulated asymmetric load. The results indicate that for the symmetric condition at 20 kPa and below, the spatial effect range increases as the load increases. For the symmetric condition above 20 kPa, the load has a negligible impact on the spatial effect range. On the side with a larger load under asymmetric loading conditions, the spatial effect of the working condition below 30 kPa is smaller than the corresponding symmetric load. On the side with a smaller load, the spatial effect of the working condition above 80 kPa increases compared with that of the corresponding symmetrical load. Given and verified are the modified fitting equations that take into account the influence range of spatial effect on both sides of the foundation pit under symmetrical and asymmetrical loads.

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