Numerical simulation analysis on fault pillar optimization of fully mechanized caving in thick coal seam

Author

Lin, Huili ; Zhang, Peisen ; Zhang, Jinmin ; Liu, Qinglong

Author_Institution

Coll. of Resources & Environ. Eng., Shandong Univ. of Sci. & Technol., Qingdao, China

fYear

2011

fDate

24-26 June 2011

Firstpage

4210

Lastpage

4213

Abstract

According to engineering geological conditions of one certain coal mine, YF20-3 fault of the mine is without water and not leading water by detection and analysis. In order to make full utilization of coal resources, fault pillar is optimized with FLAC^3D software in this paper. Based on numerical simulation of fault pillar optimization in fully mechanized caving face, we analyzed dynamic failure mechanism of fault pillar, determined rational leaving width of fault pillar, and provided supporting scheme and influence law that was the fault and fully mechanized caving face mining to gate road. The field experiment shows that fault pillar leaving is rational and supporting scheme of gate road is scientific.

Keywords

coal; failure analysis; foundations; geology; geotechnical engineering; mining; numerical analysis; optimisation; FLAC^3D software; YF20-3 coal mine fault; coal seam; dynamic failure mechanism; fault pillar optimization; fully mechanized caving; geological conditions; numerical simulation analysis; Coal; Coal mining; Logic gates; Numerical simulation; Optimization; Roads; Water resources; fault pillar optimization; fully mechanized caving; numerical simulation; thick coal seam;

fLanguage

English

Publisher

ieee

Conference_Titel

Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-9172-8

Type

conf

DOI

10.1109/RSETE.2011.5965258

Filename

5965258