华东地质2025，Vol.46Issue(1)：114-126,13.DOI:10.16788/j.hddz.32-1865/P.2024.21.010
基于比奥固结理论的盐城市地面沉降模拟预测
Simulation and prediction of Yancheng ground subsidence based on Bio-consoli-dation theory
摘要
Abstract
Ground subsidence occurred in urban area may cause damage to buildings and infrastructure,af-fecting the overall stability and safety of the city.This paper established a three-dimensional variable parameter fully-coupled viscoelastic-plastic model of building loads and groundwater mining with ground subsidence in Yancheng,Jiangsu Province based on the theory of Bio-consolidation,introduced the viscoelastic-plastic soil con-stitutive model,and meanwhile took the nonlinear change of soil parameters with the state of stress into account.The results show that the groundwater level in the study area continually rises under the conditions of construc-tion loading and groundwater extracting,with an overall rebound phenomenon.However,in the centre of the city,where the building loads are high,the amount of ground rebound is small and even slight settlement occurs,and the maximum horizontal displacement produced over 10 years is 15 mm.The results of the study can provide sci-entific basis for the prevention and mitigation of ground subsidence hazards in Yancheng.关键词
盐城市/地下水开采/地面沉降/建筑荷载/比奥固结理论Key words
Yancheng/groundwater extraction/ground subsidence/building load/Bio-consolidation theory分类
地质学引用本文复制引用
杜菁菁,张岩,骆祖江,张庆..基于比奥固结理论的盐城市地面沉降模拟预测[J].华东地质,2025,46(1):114-126,13.基金项目
自然资源部地裂缝地质灾害重点实验室开放课题"荷载和地下水开采引发地面沉降地裂缝模拟预测三维变参数黏弹塑性全耦合模型研究(编号:EFGD20210507)"资助. （编号:EFGD20210507）
