|
| Research on Contrl Technology of Floor Heave in Deep Mining |
|
Received:April 15, 2013
Revised:April 19, 2013
Accepted:April 23, 2013
Published Online:December 21, 2013
|
| View Full Text View/Add Comment Download reader |
| DOI： |
| KeyWord:floor heave;finite element;plastic area; deep roadway |
| Author | Institution |
| Chen Gang |
College of Resources and Environmental Engineering,Heilongjiang Institute of Science and Technology,Harbin |
| Sun Guangyi |
College of Resources and Environmental Engineering,Heilongjiang Institute of Science and Technology,Harbin |
| Wang Qiong |
Harbin University,Harbin |
|
| Hits: 2401 |
| Download times: 15 |
| Abstract: |
| In deep mining, the problems of serious floor heave and large plastic area in mining roadway. In order to study on the engineering problems further more, the central switching room of No 5 mining area of Dong Hai coal in Dragon Coal Group is studied. The support effect is analyzed by methods of field observation and finite element simulation. Results show that the displacement between roof and bottom is 100mm in the experimantal roadway, and the surrounding rock is stable on the whole.Corresponding solution shows that bottom anchor support is effective to control floor heave. The research has some reference value to the actual engineering. |
| Close |
|
|
|