煤层开采条件 meaning in Chinese

seam condition

On observation of moving and deforming of surface building under mining the thin coal seam
薄煤层开采条件下地面建筑物移动变形观测
On the illustration of mining in deeply inclined coal seam under buildings in muchengjian colliery in beijing , the confirmation method of coal pillar dimension and the united layout of pseudo - dip strip pillar and boundary pillar were put forward to provide theory foundation for the control of surface movement and subsidence in the mining of deeply inclined coal seam
摘要以北京木城涧煤矿大台井建筑物下压煤开采为例，提出了急倾斜煤层开采条件下条带煤柱尺寸的确定方法和倾斜条带煤柱与边界煤柱相结合的条带布置方案，为急倾斜煤层开采地表沉陷控制提供了理论依据。