| 煤层底板突水突变模型 |
| |
| 引用本文： | 王连国,宋扬.煤层底板突水突变模型[J].工程地质学报(英文版),2000,8(2):160-163. |
| |
| 作者姓名： | 王连国 宋扬 |
| |
| 作者单位： | 山东科技大学,泰安271019 |
| |
| 基金项目： | 国家自然科学基金资助! (批准号 :5 97740 0 1) |
| |
| 摘 要： | 本文建立了煤层底板突水的一个尖点突变 (cusp)模型 ,并分析了煤层底板失稳破坏发生突水的机制。基于定态曲面方程 ,可求得煤层底板水压应力比 Ip。当 Ip 1时 ,发生突水 ;当 Ip 1时 ,不会发生突水。基于分支曲线方程 ,可求得煤层底板突水临界采动导水裂隙带深度 h1l,当 h1 h1l 时 ,发生突水 ;当 h1 h1l 时 ,不会发生突水。
|
| 关 键 词： | 煤层底板 突水 尖点突变模型 |
| 收稿时间： | 1998-12-14 |
| 修稿时间： | 1998-12-14 |
A CATASTROPHIC MODEL OF WATER-INRUSH FROM COAL FLOOR |
| |
| WANG Lian-guo,SONG Yang.A CATASTROPHIC MODEL OF WATER-INRUSH FROM COAL FLOOR[J].Journal of Engineering Geology,2000,8(2):160-163. |
| |
| Authors: | WANG Lian-guo SONG Yang |
| |
| Institution: | Shandong University of Science and Technology, Tai′an 271019 |
| |
| Abstract: | A cusp catastrophic model of water-inrush from coal floor is established and a mechanism for water inrush due to the floor instability and destruction is analysed in the paper. The ratio of water pressure and stress, I p, can be derived from the model. When I p>1,water-inrush from the floor can be caused. When I p<1, water-inrush from coal floor can not be caused. The critical depth of the mining water-conducting fissure zone, h 1l, for water inrush from coal floor can be derived from the bifurcation curve equation. When h 1>h 1l, water inrush from coal floor can be caused. When h 1
|
| |
| Keywords: | Coal floor Water-inrush Cusp catastrophic model |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《工程地质学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《工程地质学报(英文版)》下载免费的PDF全文 |
|
