| 岩浆严重侵蚀区高变质煤开采时的顶板管理 |
| |
| 引用本文： | 王振启.岩浆严重侵蚀区高变质煤开采时的顶板管理[J].安徽理工大学学报(自然科学版),1990(3). |
| |
| 作者姓名： | 王振启 |
| |
| 作者单位： | 淮南矿业学院采矿系 |
| |
| 摘 要： | 本文依据采场和巷道顶板稳定性的平衡拱理论,对煤层遭受岩浆严重侵蚀所形成煤包的赋存及开采特点,以及其厚层拱形岩浆岩顶板的稳定问题进行讨论,并按照弹性力学方法,对类似于大断面椭圆形巷道采场顶板的稳定性进行判断。文中对井下大量无支护空间的破坏可能性也做了分析。
|
| 关 键 词： | 岩石 变质作用 煤 顶板管理 稳定性 采空区处理 |
Roof Control in Mining Magma-eroded Seams |
| |
| Wang Zhengqi.Roof Control in Mining Magma-eroded Seams[J].Journal of Anhui University of Science and Technology:Natural Science,1990(3). |
| |
| Authors: | Wang Zhengqi |
| |
| Institution: | Department of Coal Mining |
| |
| Abstract: | Investigations are made, in light of the theory of equilibrium arch which proves useful in studies of the stability of workings and roadway roofs, for special techniques concerning the mining of seams with coalettes due to heavy erosion of magmas, as well as for possible control techniques of thick arch roofs of magma rocks. Methods of elastic mechanics are employed to grade the stability of roofs of workings shaped like largesection elliptical roadways. Also analysed is the danger of failure in unsupported openings which are not uncommon in underground mines |
| |
| Keywords: | rock metamorphism coal strata control stabilty goaf management |
| 本文献已被 CNKI 等数据库收录！ |
