Analysis Impact Factors on Foundation Stability of Goaf
详细信息
- 责任者：He Liping (College of Equipment Engineering ; Shenyang Technical University ; Shenyang 110159 ; China) ; Yu Yongjiang
- 刊名：Journal of Liaoning Technical University (Natural Sciences)
- 出版年：2011
- 卷期：30(6)
- 关键词：采空区 ; mined-out section ; 地基稳定性 ; foundation stability
- 页码：p.814-817
- 图表：7 illus., 10 refs.
- 分类号：1702
- 出版序号：20122689
- issnNo：ISSN1008-0562
- isbnNo：CN21-1379/N
摘要
From the objective factors of current condition of coal seam,by using FLAC3D, this paper mainly analyzes the influence of seam depth, seam thickness, seam dip angle and unconsolidated layer thickness on foundation stability of goaf. The results show that, the effect on movement and deformation of surface and rock stratum decreases with increasing mining depth, the increase of the mining depth is favorable to foundation stability of goaf; the destruction degree of the wall rock increases obviously, the violent surface movement and the surface deformation increases with increasing mining thickness, the increase of the mining thickness is unfavorable to foundation stability of goaf. hemas-microsoft-com:office:office" />