| 1. | Control design of roof rocks for gob - side entry
沿空留巷顶板岩层控制设计 |
| 2. | Study on the zone with rich water of the roof rock of 3rd coal seam in xinglongzhuang mine
兴隆庄煤矿3煤顶板岩层富水性分区 |
| 3. | Research on rationally arranging position of horizontal boreholes in roof rock stratum
顶板岩层水平长钻孔合理布孔层位的研究 |
| 4. | The development and application of new - type detector of roadway roof strata structure
新型巷道顶板岩层结构探测仪的研制和应用 |
| 5. | Therefore , the abnormal strata behavior happened in the advance entry is the result of common action of 3 ( superscript # ) and 2 ( superscript # ) roofs
1303综放工作面超前平巷发生的奇异压力现象是3 (上标# )顶板和2 (上标# )顶板岩层共同来压作用的结果。 |
| 6. | 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。 |
| 7. | The results indicate that the stability for bifurcation point equilibrium configuration and post - buckling equilibrium path of roof strata can be revealed and an effective method for determining displacement field of imperfection structure can be provided by using initial post - buckling theory
应用初始后屈曲理论可揭示浅埋煤层长壁开采顶板岩层的分叉点平衡构形及后屈曲平衡路径的稳定性，是确定非完善结构位移场的一种有效方法。 |
| 8. | In accordance with the occurrence behavior of roof strata and the fracture characteristics of key stratum in shallow seam longwall mining , studied post - buckling behavior of roof key stratum in the process of mining by using initial post - buckling theory , which derived a critical load and a breaking span of the main roof during the first weighting , determined the final subsidence and the maximum rotation angle for broken key stratum , and presented an application with the example of daliuta 1203 face
摘要根据浅埋煤层顶板岩层的赋存特点和长壁开采时关键层的变形破断特征，应用初始后屈曲理论探讨了开采过程中顶板关键层的后屈曲性态，得出了老顶初次来压时顶板的临界载荷和破断步距，确定了顶板破断后的极限下沉量和回转角，并以神东矿区大柳塔1203工作面为例给出了工程实例。 |
