海上风电植入式嵌岩导管架基础水平承载特性研究

苏凯; 胡雨承; 王向坤; 朱洪泽

doi:10.19912/j.0254-0096.tynxb.2024-1398

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (12) : 233-242. DOI: 10.19912/j.0254-0096.tynxb.2024-1398

海上风电植入式嵌岩导管架基础水平承载特性研究

苏凯^1,3, 胡雨承¹, 王向坤¹, 朱洪泽¹

作者信息 +

STUDY ON HORIZONTAL BEARING CHARACTERISTICS OF OFFSHORE WIND POWER EMBEDDED ROCK-SOCKETED JACKET FOUNDATION

Su Kai^1,3, Hu Yucheng¹, Wang Xiangkun¹, Zhu Hongze¹

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文章历史 +

摘要

该文采用ABAQUS有限元分析软件,建立三桩导管架基础的嵌岩模型,采用切线相交法确定水平承载力,并通过分析钢管桩嵌岩深度、灌浆料属性和钢管桩长径比研究基础水平承载特性。研究结果表明：钢管桩在强风化层中局部区域应力和岩土抗力达到最大值;灌浆料在加载初期发生受拉损伤,顶部与钢管桩脱开,达到水平承载力前损伤区由受拉侧不断向受压侧延伸;提高嵌岩深度可显著提高基础水平承载力;灌浆料标号对基础水平承载力基本无影响,提高灌浆厚度可小幅度提高水平承载力,但影响较小;改变桩径以提高长径比时,基础水平承载力不断下降,影响效果显著。总体而言,嵌岩环境下改变钢管桩嵌岩深度以及长径比对基础水平承载力影响显著。

Abstract

In this paper, ABAQUS finite element analysis software is used to establish the rock-socketed model of three-pile jacket foundation, and the horizontal bearing capacity is determined by tangent intersection method, and the horizontal bearing capacity characteristics of the foundation are studied by analyzing the rock-socketed depth of steel pipe piles, grouting material properties and length-diameter ratio of steel pipe piles. The results show that the local regional stress and geotechnical resistance of steel pipe pile in strongly weathered layer reach the maximum; At the initial stage of loading, the grouting material is damaged in tension, and the top of the grouting material is separated from the steel pipe pile. Before reaching the horizontal bearing capacity, the damage zone extends from the tension side to the compression side. Increasing the depth of rock-socketed can significantly improve the horizontal bearing capacity of foundation; The grouting material label has little effect on the horizontal bearing capacity of the foundation, and increasing the grouting thickness can slightly improve the horizontal bearing capacity, but the influence is small; When the pile diameter is changed to improve the ratio of length to diameter, the horizontal bearing capacity of foundation decreases continuously, and the effect is remarkable. Generally speaking, changing the rock-socketed depth and length-diameter ratio of steel pipe piles in rock-socketed environment has a significant influence on the horizontal bearing capacity of foundation.

导出引用

苏凯, 胡雨承, 王向坤, 朱洪泽. 海上风电植入式嵌岩导管架基础水平承载特性研究[J]. 太阳能学报. 2025, 46(12): 233-242 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1398

Su Kai, Hu Yucheng, Wang Xiangkun, Zhu Hongze. STUDY ON HORIZONTAL BEARING CHARACTERISTICS OF OFFSHORE WIND POWER EMBEDDED ROCK-SOCKETED JACKET FOUNDATION[J]. Acta Energiae Solaris Sinica. 2025, 46(12): 233-242 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1398

中图分类号： TU391

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