| 老顶初次断裂过程及其矿山压力显现 |
| |
| 引用本文： | 蒋金泉.老顶初次断裂过程及其矿山压力显现[J].山东科技大学学报(自然科学版),1989(1). |
| |
| 作者姓名： | 蒋金泉 |
| |
| 作者单位： | 山东矿业学院矿压研究所 |
| |
| 摘 要： | 为研究老顶初次来压的形成与预报机理,本文建立了适于长壁采场中部范围的老顶初次断裂前后的弹性基础梁模型,并求得其解。计算结果指出老顶初次断裂发展过程有三个类型,分析了断裂前后的矿压显现,揭示了利用采场前方矿压显现的突变预报顶板来压的机理。
|
| 关 键 词： | 顶板 弹性基础 断裂 矿山压力 预报 老顶 弯矩分布 初次断裂过程 支承压力显现 预报机理 |
THE INITIAL FRACTURE PROCESS OF MAIN ROOF AND ITS MINE GROUND PRESSURE MANIFESTATION |
| |
| Jiang Jinquan.THE INITIAL FRACTURE PROCESS OF MAIN ROOF AND ITS MINE GROUND PRESSURE MANIFESTATION[J].Journal of Shandong Univ of Sci and Technol: Nat Sci,1989(1). |
| |
| Authors: | Jiang Jinquan |
| |
| Institution: | Res. Inst. of Mine Press |
| |
| Abstract: | To study the formation of the initial weighting of main roof and the predicting mechanism, this paper presents the elastic foundation beam model for the middle part of longwall faces, hence its solution. Using the calculated consequences, it indicates that there are three types of development procedures of the initial fracture of main roof, analyzes the pressure manifestation around the fracture of main roof and reveals the mechanism of predicting the roof weighting making use of the sudden change of pressure manifestation in front of the working face |
| |
| Keywords: | Roof elastic foundations fracture Mine ground pressure prediction main roof bending moment distribution process of initial fracture abutment pressure manifestation predicting mechanism |
| 本文献已被 CNKI 等数据库收录！ |
