Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for reclaiming house type remaining coal pillars based on filling and rebuilding of entry protection coal-pillar band
The invention discloses a method for reclaiming house type remaining coal pillars based on filling and rebuilding of entry protection coal-pillar band, and belongs to reclaiming methods of house type remaining coal pillars in coal goafs. The reclaiming method of remaining coal pillars comprises the following steps: estimating and grading the stability of house type remaining coal pillars in a coal goaf; determining the width of entry protection coal pillars to be filled and rebuilt and the length of a band working face; performing an entry protection coal pillar filling and rebuilding technology; and performing a coal pillar reclaiming method and technology. According to the method, the minimum width of the entry protection coal pillars to be rebuilt, and the largest length of the band working face are determined according to the grades of the stability of the remaining coal pillars in the coal goaf; through the adoption of method for filling and rebuilding entry protection coal pillars, the stability of original coal pillars is greatly improved, so that the surface subsidence is controlled, and remaining coal pillar resources are reclaimed to the greatest extent; the purposes that the surface subsidence is reduced, the life and property safety of people in mining districts are protected, and the utilization ratio of resources is increased are realized. The method disclosed by the invention has the advantages of being simple, easy to operate, high in efficiency for filling and rebuilding entry protection coal pillars, and low in cost; the targets that the waste of resources is reduced, and the surface subsidence is controlled are realized, and the method can be widely applied.
Method for reclaiming house type remaining coal pillars based on filling and rebuilding of entry protection coal-pillar band
The invention discloses a method for reclaiming house type remaining coal pillars based on filling and rebuilding of entry protection coal-pillar band, and belongs to reclaiming methods of house type remaining coal pillars in coal goafs. The reclaiming method of remaining coal pillars comprises the following steps: estimating and grading the stability of house type remaining coal pillars in a coal goaf; determining the width of entry protection coal pillars to be filled and rebuilt and the length of a band working face; performing an entry protection coal pillar filling and rebuilding technology; and performing a coal pillar reclaiming method and technology. According to the method, the minimum width of the entry protection coal pillars to be rebuilt, and the largest length of the band working face are determined according to the grades of the stability of the remaining coal pillars in the coal goaf; through the adoption of method for filling and rebuilding entry protection coal pillars, the stability of original coal pillars is greatly improved, so that the surface subsidence is controlled, and remaining coal pillar resources are reclaimed to the greatest extent; the purposes that the surface subsidence is reduced, the life and property safety of people in mining districts are protected, and the utilization ratio of resources is increased are realized. The method disclosed by the invention has the advantages of being simple, easy to operate, high in efficiency for filling and rebuilding entry protection coal pillars, and low in cost; the targets that the waste of resources is reduced, and the surface subsidence is controlled are realized, and the method can be widely applied.
Method for reclaiming house type remaining coal pillars based on filling and rebuilding of entry protection coal-pillar band
HUANG YANLI (Autor:in) / LI JUNMENG (Autor:in) / QI WENYUE (Autor:in) / ZHANG JIXIONG (Autor:in) / KONG GUOQIANG (Autor:in) / SONG TIANQI (Autor:in)
13.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
E21C
Bergbau oder Steinbruchbetrieb
,
MINING OR QUARRYING
/
C04B
Kalk
,
LIME
/
E21F
Sicherheitsvorrichtungen, Förderung, Auffüllen oder Bergversatz, Rettungswesen, Bewetterung oder Entwässerung in oder von Gruben oder Tunnels
,
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
Size effect analysis of remaining coal pillar on rock burst caused by fault
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Post-failure behaviour of coal pillars
| British Library Conference Proceedings | 1995