钻探工程2025，Vol.52Issue(4)：154-160,7.DOI:10.12143/j.ztgc.2025.04.020
软土地区后压浆灌注桩单桩承载力综合估算法研究
Comprehensive estimation research on the bearing capacity of post-grouting single bored pile in soft soil areas
贺占海 1张志强 1王杰亭 1陈向平 1高承成 1胡朝彬 1齐旭锋 1张长斌1
作者信息
- 1. 天津华勘基础工程检测有限公司,天津 300170
- 折叠
摘要
Abstract
The post-grouting process of bored piles has been widely used in China because it can improve the bearing capacity and reduce deformation.However,due to the large concealment of post-grouting construction,problems have occurred in many engineering applications.A large number of practices show that the bearing capacity of a single bored pile under the same condition often shows quite differences.Simply calculation according to the pile foundation specification will make the calculated value significantly higher than the static load test results,which brings great safety hazards to the construction project.The comprehensive estimation method proposed in this paper analyzed from several aspects,bringing in the increase amplitude of bearing capacity γ,the bearing capacity enhancement coefficient β,and the cmprehensive impact factor λ,covering the influence of various factors.The calculation formula is simple and easy to understand and the method is convenient and feasible.Moreover,the results are close to the actual after the application verification with high safety reliability,and good application effect.关键词
软土地区/后压浆工艺/钻孔灌注桩/单桩承载力/综合估算法/承载力增强系数/综合影响因子Key words
soft soil areas/post-grouting process/bored piles/bearing capacity of single pile/comprehensive estimation method/bearing capacity enhancement coefficient/comprehensive impact factor分类
建筑与水利引用本文复制引用
贺占海,张志强,王杰亭,陈向平,高承成,胡朝彬,齐旭锋,张长斌..软土地区后压浆灌注桩单桩承载力综合估算法研究[J].钻探工程,2025,52(4):154-160,7.
