摘要
矿山开采中断层等弱面的存在,不仅改变了地表移动变形范围,同时由于断层露头地表的变形集中而形成塌陷台阶,增大了地表采动损害程度.根据断层面倾角与基岩移动角之间的关系,分析了断层对地表移动范围和非连续变形的影响规律,探讨了断层露头处台阶和裂缝的计算方法,实例分析表明,计算的断层台阶尺寸与实际观测相符,可以为有断层的地面建筑物布置和地下开采优化提供一定的技术依据.
Tbe existed faults in underground mining process may change the range of surface movement and cause the discontinuous disturbance such as surface fissures or cracks and steps. The non-uniform settlement may increase the surface structural damages. According to the characteristics of fault and the relationship between the dip angle of fault and angle of draw of bedrock, the impact law of fault to the discontinuous deformation is analyzed and the calculating methods of surface steps and cracks are discussed in the outcrop of the fault. The comparative analysis of the monitored and calculated fault step throw and fissure wide illustrate that the outcome of the work presented will be helpful in the selection of the optimum underground mining layout and prevention or control the surface structural damage. 5figs., 10refs.
出处
《湖南科技大学学报（自然科学版）》
CAS
北大核心
2009年第2期1-4,共4页
Journal of Hunan University of Science And Technology：Natural Science Edition
基金
国家重点基础研究发展计划资助项目(2007CB209400)
教育部新世纪优秀人才支持计划资助项目(NCET-07-0798)
矿山空间信息技术国家测绘局重点实验室开放基金资助项目(KLM200816)
关键词
断层活化
非连续变形
地下开采
台阶
裂缝
fault activation
discontinuous deformation
underground mining
step
crack
