| 1. | Determination and regression of overburden pressure gradient
上覆岩层压力梯度合理计算及拟合方法 |
| 2. | The calculation of displacement and deformation of the superincumbent strata above the coal face
采场上覆岩层移动变形值计算 |
| 3. | Application of dynamic mechanics model of overlying strata movement and damage above goaf
采空区上覆岩层移动破坏动态力学模型的应用 |
| 4. | Similar materials simulation of moving laws analysis on roof strata with sublevel caving mining
综放开采上覆岩层运动规律相似材料模拟分析 |
| 5. | Movement law and stability analysis of overlaying strata under the condition of mining with filling
充填开采时上覆岩层的活动规律和稳定性分析 |
| 6. | The strata behavior rule of longwall face with individual props in shallowly buried coal seam covered with thick soil was summarized
实验和观测表明，尽管其上覆岩层的力学强度比较小，煤层埋深浅，但工作面初次来压步距大，矿山压力显现剧烈，周期来压台阶下沉量大。 |
| 7. | Under the condition of uniformity degradation the formation compression will have a whole fall on account of the reduce of overburden , the expanding of fluid hi the pore and rocks and the decrease of density
在均匀剥蚀情况下，上覆岩层厚度减小，岩石和孔隙流体膨胀，密度减小，地层压力会整体降低。 |
| 8. | The conclusions are following : 1 . the basic factors influencing formation compression are thickness and density of overburden ( including fluid ) and behavior to enclose fluid of the formation
主要取得了以下认识： 1影响地层压力的基本因素是该岩层的上覆岩层(含流体)的厚度、密度以及该岩层封闭流体的特性。 |
| 9. | Surface collapse of coal field is one kind of geological disaster with great hazard , which may result from distortion and breakout of overlying strata that lose their support after underground coal beds are excavated in a large area
摘要采煤区地面塌陷是由于地下煤层大面积采空引起上覆岩层失去支撑而变形崩落最后导致地面沉降一种危害很大的地质灾害。 |
| 10. | Because the upper rocks are influenced after the mining lower coal , they glide along the primary bursting surface , and the upper rock layers can form surface - contact fabric by its shear and bulge function
作者认为，下煤层开采后上覆顶板岩层受到二次扰动，其破坏移动主要是沿原有破裂面滑移，由于剪胀的作用，上覆岩层能够形成面接触的覆岩基本结构特征。 |
