Author(s)

Lei Wu^{1, 2}, ZhiCheng Bai^{1, 2*}, MinJian Long^{1, 2}, XiaoXia Zhao^{1, 2}, ZhiYuan Zhang^{1, 2}, HuiZhou Ni^{1, 2}

Affiliation(s)

¹China Construction Fourth Engineering Bureau Co., Ltd. Guangzhou 510000, Guangdong, China.

²China Construction Fourth Engineering Bureau Sixth Construction Co., Ltd. Hefei 230000, Anhui, China.

Corresponding Author

ZhiCheng Bai

ABSTRACT

This article relies on actual engineering projects to conduct research on the earth pressure distribution model of circular working wells in soft soil areas. By establishing a well-soil three-dimensional numerical analysis model, the lateral displacement of the working well enclosure in the soft soil area is analyzed, and the earth pressure calculation method that considers the displacement effect is used to analyze the lateral earth pressure of the enclosure. On this basis, the influence of the working well space arch effect on the earth pressure distribution pattern under the conditions of wall insertion ratio, working well radius, wall thickness, wall elastic modulus and other factors was analyzed. Subsequently, based on the existing specifications, the soil pressure distribution model of circular working wells in soft soil areas was revised. The study shows that the radius of the working well has a significant impact on the earth pressure distribution pattern; in addition, the study obtained a fitting formula for the starting and ending depth and radius of the earth pressure reduction of the circular working well; and through comparative analysis, it was found that the use of considering the circular arch The effect-corrected earth pressure plane foundation beam method is simpler than the three-dimensional finite element method, has more mature parameter selection, and has lower calculation costs. Compared with the plane elastic foundation beam method of standardized earth pressure, it is closer to the actual displacement direction.

KEYWORDS

Soft soil area; Circular working well; Spatial arch effect; Earth pressure distribution model

CITE THIS PAPER

Lei Wu, ZhiCheng Bai, MinJian Long, XiaoXia Zhao, ZhiYuan Zhang, HuiZhou Ni. Study on the modification of earth pressure distribution pattern of circular working shaft in soft soil area. Academic Journal of Architecture and Civil Engineering. 2024, 2(2): 35-46. DOI: 10.61784/ajace3007.

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