摘要
煤层顶板覆岩一般以页岩、砂岩、灰岩等沉积岩为主,其物理力学性质差异很大。研究了应用模型实验方法探索煤层采后顶板沉陷变形的变化规律,为评价采空区沉陷稳定提供了依据。
The overlying strata of the coal bed roof are dominated by sedimentary rocks such as shale, sand stone and limestone, whose physical and mechanic properties differ greatly. This paper was designed to grope for the deformation rules of the overlying strata after exploitation with the method of model test, to provide a basis for the estimation of the stability of the mined areas.
出处
《江苏地质》
2007年第3期268-270,共3页
Jiangsu Geology
关键词
覆岩
沉陷
相似理论
采空区
稳定性
Overlying strata
Subsidence
Similarity theory
Mined areas
Stability
