SURFACE SUBSIDENCE BY REPEATED UNDERMINING AND HIGH SPEEDS OF COAL FACE ADVANCE
/ 0
- Details
- Category: Mining
- Last Updated on 01 October 2014
- Published on 01 October 2014
- Hits: 4472
A.S. Kuchin, S.F. Leonov, Ye.V. Stelmashchuk, A.P. Shvets, L.A. Kovalevich
The results of surface subsidence monitoring at the observation station which is established above 124th lava of Blagodatnaya mine in the Western Donbass coal region are presented in the article. The speed of mining face advance is 170 m a month in conditions of repeated undermining on a depth of 335 m. Co-ordinates of benchmarks were determined by means of electronic tacheometer during the observations of their displacement. The considerable difference of the actual and forecast surface subsidence and deformations, which is 200%, is set as the result of supervisions.
Files:
 2010_07-08 Kuch
|
|
 2012-12-14  398.08 KB  1068 |
|
Newer news items:
- THE MATHEMATICAL MODEL OF THE PROCESS OF HYDROPNEUMODINAMICAL ACTION ON THE ROCK MASSIF - 01/10/2014 22:47
- METHODOLOGY OF ESTIMATION OF LIABILITY TO OUTBURST BY DURABLE PROPERTIES OF COAL MASS - 01/10/2014 22:44
- COMPLEX CRITERION OF ACCIDENT RATE ESTIMATION DURING BUILDING AND EXPLOITATION OF EXTENSIVE MINE WORKING IN THE AREAS OF FLOODED GEOLOGICAL VIOLATIONS - 01/10/2014 22:39
Older news items:
- FORMATION OF GAS HYDRATES WHILE MINE METHANE EXTRACTING AND POSSIBLE METHODS OF THE PROBLEM-SOLVING - 01/10/2014 21:57
- DEVELOPMENT OF DESTROYING DEFORMATIONS ROUND EXTRACTION CAMERAS AND THEIR INFLUENCE ON BREAKOFF - 01/10/2014 21:50
- CONTROL OF STRESS-STRAIN OF THE BOTTOMHOLE ZONE OF STEEP OUTBURST-PRONE FORMATION USING VIBRATION IMPACT - 01/10/2014 21:30
- FEATURES OF RATHER THIN COAL SEAMS MINING IN THE ENVIRONMENT OF THE WESTERN DONBASS - 01/10/2014 21:17
