Studying of dynamic bear characteristics and adaptability of support in top coal caving with great mining height
Based on theoretical analysis and spot hydraulic support resistance observation, the idynamic bear characteristics and adaptability of ZF 15000/28/52 hydraulic support in fully-mechanized top coal caving with great mining height has been studied. The results shows that: with high impact resistant capability, the ZF 15000/28/52 hydraulic support is influenced slightly by face pressure; with high stability and reliability, the safety valve of the ZF 15000/28/52 hydraulic support can be capable of opening timely when resistance exceeds Rated resistance; with high high-usage, the support runs reasonably and have a good adaptability to the roof. The resistance of the hydraulic support presents as sine distribution The distribution of setting load presents as a linear type of P=A+BX. The pillar with balanced force has a good condition.
great mining height caving support bear characteristics adaptability
YU Lei YAN Shao-hong YU Hai-yong ZHANG Zhen
Coal Mining & Designing Branch, China Coal Research Institute, Beijing 100013, China Department of C Tiandi Science & Technology Co, Ltd., Beijing 100013,China
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
660-666
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）