基于随机介质理论的采空区稳定性评价研究
|
摘要
老空区的稳定性影响其上覆建筑场地的安全,准确地预估老空区地表的变形是判定老空区稳定性的基础。论文以某煤矿老空区段建设场地为例,基于随机介质理论,对煤矿老空区段建设场地的变形进行了分析。结果表明,在巷道中心处变形最大,随着水平距离的增大,地表下沉值逐渐减少;变形最大值小于建筑物的地基容许变形值,可以满足上部建筑物对沉降的要求。
The stability of goaf affects the safety of its overlying building site.Accurately predicting the surface deformation of goaf is the basis of determining the stability of goaf.Taking the goaf section construction site of a coal mine as an example,based on the random medium theory,the paper analyzes the deformation of the goaf section construction site.The results show that the maximum deformation is at the center of the roadway,and the surface subsidence decreases with the increase of horizontal distance;the maximum deformation value is less than the allowable deformation value of the foundation of the building,which can meet the settlement requirements of the superstructure.
The stability of goaf affects the safety of its overlying building site.Accurately predicting the surface deformation of goaf is the basis of determining the stability of goaf.Taking the goaf section construction site of a coal mine as an example,based on the random medium theory,the paper analyzes the deformation of the goaf section construction site.The results show that the maximum deformation is at the center of the roadway,and the surface subsidence decreases with the increase of horizontal distance;the maximum deformation value is less than the allowable deformation value of the foundation of the building,which can meet the settlement requirements of the superstructure.
引文
[1]贺跃光,刘宝琛.基坑工程开挖引起地表移动变形的随机介质模型及工程实例[J].中国有色金属学报,2004(3):489-493.
[2]刘建航,侯学渊.盾构法隧道[M].北京:中国铁道出版社,1991.
[3]阳军生,刘宝琛.城市隧道施工引起的地表移动及变形[M].北京:中国铁道出版社,2002.
[2]刘建航,侯学渊.盾构法隧道[M].北京:中国铁道出版社,1991.
[3]阳军生,刘宝琛.城市隧道施工引起的地表移动及变形[M].北京:中国铁道出版社,2002.