Investigation of Screw Pile Behavior in Cohesive Soil Under Uplift and Compressive Forces by Experimental Studies and Numerical Analyses

IF 2.9 4区 综合性期刊 Q1 Multidisciplinary Arabian Journal for Science and Engineering Pub Date : 2024-09-15 DOI:10.1007/s13369-024-09553-x
Talha Sarici, Mustafa Ozcan
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Abstract

Within the scope of this study, experimental studies and numerical analyses were carried out to investigate the effect of the use of screw piles and traditional piles without screws on the bearing capacity of cohesive soils under the effect of uplift and compressive forces. In the experimental studies, the effect of changing the number of helixes and the effect of different overburden loads caused by this change were investigated. In numerical analyses, the finite element method was used via Plaxis 3D and a new design different from the commonly used modeling was created using the segmented helix model. After validating the results of numerical analysis and experimental study, the effect of different embedment depths and helix diameters on the behavior of cohesive soil reinforced with screw piles under loads was investigated. According to the results obtained from the study, the bearing capacity of cohesive soil increased as the screw pile helix number increased. Increase in bearing capacity was also observed with increasing embedment depth and helix diameter. In addition, the segmented helix model used in the numerical analyses represented the screw pile behavior more realistically.

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通过实验研究和数值分析探究粘性土中螺旋桩在上浮力和压缩力作用下的行为
在本研究范围内,进行了实验研究和数值分析,以研究在上浮力和压缩力作用下,使用螺旋桩和不使用螺旋桩的传统桩对粘性土承载力的影响。在实验研究中,研究了改变螺旋数量的影响以及这种改变所引起的不同覆土荷载的影响。在数值分析中,通过 Plaxis 3D 使用了有限元方法,并使用分段螺旋模型创建了不同于常用模型的新设计。在验证了数值分析和实验研究的结果后,研究了不同的嵌入深度和螺旋直径对使用螺旋桩加固的粘性土在荷载作用下的行为的影响。研究结果表明,随着螺旋桩螺旋数的增加,粘性土的承载力也随之增加。随着嵌入深度和螺旋直径的增加,承载力也有所提高。此外,数值分析中使用的分段螺旋模型更真实地反映了螺旋桩的行为。
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来源期刊
Arabian Journal for Science and Engineering
Arabian Journal for Science and Engineering 综合性期刊-综合性期刊
CiteScore
5.20
自引率
3.40%
发文量
0
审稿时长
4.3 months
期刊介绍: King Fahd University of Petroleum & Minerals (KFUPM) partnered with Springer to publish the Arabian Journal for Science and Engineering (AJSE). AJSE, which has been published by KFUPM since 1975, is a recognized national, regional and international journal that provides a great opportunity for the dissemination of research advances from the Kingdom of Saudi Arabia, MENA and the world.
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