岩土工程学报2024，Vol.46Issue(z2)：103-106,4.DOI:10.11779/CJGE2024S20019
考虑固结全过程的实用沉降预测方法
Practical prediction method for settlement considering whole consolidation process
摘要
Abstract
The construction of transportation infrastructure above soft soil foundation is prevalent in China,making it imperative to establish a prediction method for settlement applicable to deep soft soil foundations.During field monitoring processes,the primary consolidation deformation and creep deformation are both observed as the main consolidation of deep soft soils takes considerable time.Most prediction models for settlement are based on instantaneous loading and do not consider the whole process of nonlinear consolidation.This study considers the whole process of consolidation deformation and introduces a novel curve expression to account for the nonlinearity in one-dimensional consolidation curves at different stages.Both the instantaneous deformation and delayed deformation are treated as nonlinearities,resulting in an extended creep settlement algorithm that offers a practical approach considering the whole consolidation process.To validate its effectiveness,the curve fitting and prediction comparisons are conducted using the monitoring data from the Osaka Kansai International Airport against three commonly used curve fitting methods as the reference benchmarks.The results demonstrate that the extended creep settlement algorithm provides more accurate and reliable predictions for settlements in soft soil foundations.关键词
沉降预测/固结/蠕变/软土Key words
settlement prediction/consolidation/creep/soft soil分类
建筑与水利引用本文复制引用
陈凯,姚仰平,朱丙龙..考虑固结全过程的实用沉降预测方法[J].岩土工程学报,2024,46(z2):103-106,4.基金项目
国家自然科学基金面上项目(52238007,12472401) （52238007,12472401）
