盘形式及数量对滨海软土地区扩盘桩承载能力的影响分析

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DOI：10.19981/j.CN23-1581/G3.2026.11.012

关键词： 滨海软土地区; 盘径; 盘坡角; 盘数量; 扩盘桩

中图分类号：U443.1

文献标志码：A

文章编号：2095-2945（2026）11-0055-05

Abstract： Coastal soft soil areas have a significant impact on the bearing performance of pile foundations due to their unfavorable engineering characteristics such as high water content， low strength and high compressibility. In order to explore the actual bearing capacity of belled piles piles in coastal soft soil area， this paper uses ABAQUS finite element analysis software combined with actual survey data in coastal soft soil area， so as to select appropriate pile-soil mechanical performance parameters and establish a single pile static load test model. Through staged loading simulation， data was extracted and load-settlement （Q-S） curves were drawn to analyze its bearing capacity. According to the results of finite element analysis， the influence laws of expanded disk pile parameters such as bell diameter， bell inclination slope angle， and bell number on the bearing capacity of the pile are explored， thus providing a basis for the optimal design of belled piles in coastal soft soil foundations.

Keywords： coastal soft soil area; bell diameter; bell inclination angle; bell number; belled pile

滨海软土地区广泛分布于我国东部沿海、河口三角洲及填海造陆区域，其典型特征包括高含水量、高压缩性及低承载力，导致传统桩基（如摩擦桩或端承桩）在长期荷载下易发生沉降过大、承载力不足等问题。（剩余4842字）