摘要
最大下沉值是度量层状矿体(如煤层)开采引起的地表移动变形程度的重要参量。地表最大下沉值与开采工作面几何要素相关,基于倾角变化的最大下沉值计算模型综合反映了这些因素的影响关系,在一定程度上从岩层移动机理揭示了开采沉陷的层面效应和尺寸效应,为建立不同级别倾角煤层开采沉陷的统一模型打下了基础。
The maximum subsidence induced by mining bedding ore(such as coal seam) is an important parameter for estimating the degree of surface movement and deformation. The relations are dealt with between ground maximum subsidence and geometric factors of extraction. A seam-dip-angle-based model of maximum subsidence is established to reflect the comprehensive influence of geometric and mining factors, as well as the effects of bedding structure and extraction size. The research results have laid a foundation for the construction of unified subsidence model suited for the whole range of seam dip angle.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2003年第7期1083-1087,共5页
Chinese Journal of Rock Mechanics and Engineering
基金
博士学科点科研基金(1999029013)
博士后科学基金
