高校地质学报2026，Vol.32Issue(2)：160-169,10.DOI:10.16108/j.issn1006-7493.2025028
考虑地下连续墙作用抽水导致的地面沉降数值模拟
Numerical Simulation of Pumping-induced Land Subsidence with the Consideration of the Role of Diaphragm Wall
摘要
Abstract
Underground structures affect the land subsidence by changing the groundwater seepage and soil deformation.Based on the direct shear test of the soil-concrete interface,this study analyzes the influence of soil composition and moisture content on the interface friction angle and cohesion.Combined with the constitutive model of the interface between the soil and the concrete,the hydraulic and mechanical coupled model was employed to simulate the land subsidence.The results show that the shear stress-displacement curve of the interface exhibits strain hardening characteristics and conforms to a hyperbolic curve.The clay particle contents and moisture contents have clear effects on the interface shear strength parameters.With the width and insertion depth of the baffle increasing,the water-blocking effect enhances,inducing an increase in the maximum subsidence.Baffles in soils can block water flow and hinder the soil displacement at the same time,thus the maximum subsidence first increases and then decreases with the increasing distance between the baffle and the pumping well.关键词
地面沉降/直剪试验/接触面模型/地下连续墙/数值模拟Key words
land subsidence/direct shearing test/interface surface model/diaphragm wall/numerical simulation分类
建筑与水利引用本文复制引用
徐晟杰,张云,苗晨阳..考虑地下连续墙作用抽水导致的地面沉降数值模拟[J].高校地质学报,2026,32(2):160-169,10.基金项目
国家自然科学基金面上项目(41877216)资助 （41877216）
