矿区农房抗采动措施优化的试验研究  

A TEST OF OPTIMIZATION OF STRUCTURES OF BUILDINGS AGAINST GROUND DEFORMATIONS DUE TO MINING

作　　者：仲继寿[1] 杨舜臣[1] 

机构地区：[1]中国矿业大学

出　　处：《煤炭学报》1994年第2期188-194,共7页Journal of China Coal Society

摘　　要：对三栋平房和两栋楼房抗采动措施优化试验的理论分析和现场实测表明，采用三维有限元模型能合理地反映采动区房屋的受力特点，其理论分析与实测结果基本一致。本文对圈梁、构造柱、窗台下加强带以及滑动层等抗采动措施的作用机理及设置原则进行了分析探讨，认为滑动层对吸收地表水平变形及扭曲变形效果显著，设置滑动层后地表水平变形对上部结构的影响存在上限值；构造柱的作用在于抗剪与提高延性，限制主拉斜裂缝的开展与延伸；并指出楼房的抗采动变形能力比平房强，是矿山采动区农村住房的发展方向。The test includes three one-storey houses and two two-storey houses.Comparison of FEM calculations and insitu test results shows that three dimensional finite element models can reflect the practical stress states of buildings in mining areas.Theorical analyses are basically consistent with experiment results.In the paper,we analyze mechanisms and design principles of different reinforced measures.It is considered that slip layer can obviously absorb ground horizontal and torsional deformations.However it has its upper limit on supper structure when slip layer has been designed;structural column can resist shear stress and flow ductility.It can restrain or delay the expansions of the shear cracks.The paper points out that the tendency is to build two-storey buildings in mining areas,for it has greater capacity of resisting deformations than onestorey building.

关 键 词：开采沉陷 有限元法 建筑物下采煤 

分 类 号：TD823.83[矿业工程—煤矿开采]