陕西煤炭2025，Vol.44Issue(3)：1-8,40,9.DOI:10.20120/j.cnki.issn.1671-749x.2025.0301
重载双联煤仓复合地基沉降变形特性
Subsidence deformation characteristics of heavy-load double-linked coal bunker composite foundation
钱思众 1杨少帅 1张乾1
作者信息
- 1. 中煤西安设计工程有限责任公司,陕西 西安 710054
- 折叠
摘要
Abstract
Based on the existing composite foundation engineering examples of a coal bunker,field testing and subsidence monitoring,combined with the FLAC3D numerical simulation method,we studied the subsidence deformation characteristics of coal bunker buildings under variable load.The results showed that with the change of coal storage capacity,the composite foundation deformation curve changed in a wave shape,that is,the load increased,the foundation subsidence occurred,the load decreased,the subsidence deformation gradually recovered,and finally the residual deformation occurred.Under each cycle of loading-unloading,the composite foundation subsidence deformation and residual deformation have a tendency to in-crease from the center to the edge;The amount of residual deformation of the foundation is affected by the size of the load and the time of action.The greater the load,the greater the residual deformation of the foundation;The residual deformation increases with the increase of the cycle period of load,resulting in the continual enlarge of differences of the foundation cen-ter and edge area's subsidence.关键词
煤仓建筑/复合地基/变幅荷载/沉降变形特性/数值模拟Key words
coal bunker building/composite foundation/variable load/subsidence deformation characteristics,numerical simulation分类
土木建筑引用本文复制引用
钱思众,杨少帅,张乾..重载双联煤仓复合地基沉降变形特性[J].陕西煤炭,2025,44(3):1-8,40,9.
