赵各庄矿极复杂区域保护煤柱留设数值模拟研究
李见波,尹尚先,刘义生,等
Numerical research of steep coal seam mining coal pillar width under the goaf in the extremely complex area
煤炭工程 . 2016, (1): 103 -106 .  DOI: 10.11799/ce201601030