DOI: 10.11799/ce201706001
Design method of mining room coal pillar in stripe filling mining
WANG Bing-qiang
GU Shuan-cheng
FAN Qi
LI Xiao-bo
Abstract：The interaction relationship between parameters is discussed combining with engineering example,for stripe mining mining room pillar arrangement in deep-buried coal seam,including roadway width,width and number of inter-roadway coal pillar,barrier coal pillar width.The inter-roadway safety coefficient was calculated,so was the barrier coal pillar width and safety coefficient.Stability of mining interval above the pressure arch was analyzed,which indicated arch soffit and foot of the pressure arch were the key to its stability,so the safety coefficients of arch soffit and foot were calculated.According to the stripe mining arrangement,the formulas for production rate and filling rate was deduced,and the mining rate under 28 arrangement schemes of roadway and coal pillar,as well as the filling rate under different filling coefficient were calculated.At last,the 28 schemes was compared according ot roadway width,width and number of inter-roadway coal pillar,barrier coal pillar width,coal pillar stability,pressure arch stability,mining rate and filling rate,etc.,and the reasonable scheme was recommend considering applicability,stability and economy.
Keywords：stripe miningpressure archmining roomcoal pillarmining rate
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 1-5 )