Reasonable coal pillar size design in Xiaoming mine

Author

Gao, Hong ; Li, Sheng ; Chen, Ying ; Liu, Richeng

Author_Institution

Coll. of Resource & Environ. Eng, Liaoning Tech. Univ., Fuxin, China

fYear

2011

fDate

15-17 July 2011

Firstpage

4272

Lastpage

4275

Abstract

The pillar size has great influence not only on the stability of surrounding rock, but also on the recovery rate of coal resources, which directly affects the economic benefits of coal. According to XiaoMing tiefa coalmining group geological conditions and the use of coal pillar, it adopts field measurement, numerical simulation and theory calculation methods to get small coal pillar width and reasonable wide size of coal pillar. Use rock stratum detect to find out the fissures, faults, broken area; analyze the coal pillar stress and displacement distribution of the different pillar widths (3, 5, 8, 10,15and20m) by FLAC2D simulation of numerical simulation software, determine a reasonable size finally.lt provides a guarantee of security for the exploitation of the mine.

Keywords

coal; design engineering; mining; numerical analysis; FLAC^2D simulation; XiaoMing tiefa coal mining; coal pillar size design; fissures; numerical simulation software; rocks; theory calculation methods; Coal mining; Numerical simulation; Pillar size; Stress and displacement distribution;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5987948

Filename

5987948