Supporting and Improvement of Blasting Coal Face with Sublevel Caving
Blasting mining with sublevel caving has been widely applied in medium coal mines in Henan Province, even in China. But the level of mechanization at blasting coal faces with sublevel caving is lower, and the coal faces have more severe accident hidden-troubles. Based on the geological condition of supporting by monomer hydraulic props, blasting mining with sublevel caving at thick seam in Hongling Coal Mine of Yongcheng Coal Group, China, the paper systematically observed strata behaviors of the coal face, analyzed weighting interval, weighting intensity and reasonable working resistance of supports etc main parameters of the coal face. Because the strata around the coal face in Hongling Coal Mine belong to easily controlled ones, working resistance of hydraulic supports with sublevel caving was calculated. It is the scheme of matched equipments with light-supports for fully mechanized coal face with sublevel caving that will be instead of blasting coal face. The conclusions give technological support for future to fulfill fully mechanized mining with sublevel caving by light-supports in Hongling Coal Mine. The level of mechanization and production capacity with safety and high-efficiency at the coal face will be improved.
coal mine thick seam blasting coal face with sublevel caving working resistance monomer hydraulic prop light-support
ZHAI Xinxian SONG Jiayong KANG Quanyu
School of Energy Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,Henan,China;Sch School of Energy Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,Henan,China
国际会议
The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)
北京
英文
1311-1314
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）