Studying of dynamic bear characteristics and adaptability of support in top coal caving with great mining height ... The resistance of the hydraulic support presents as sine distribution The distribution of setting load presents as a linear type of P=A+BX....
Causation analysis of roof cutting and support crushing in shallow-buried large mining height long wall working face of western... The main reasons are as follow, poor effect of forced roof caving; unreasonable structure type of support; lower setting load; unevenly stressing between front and rear columns; low advancing speed or the working face....
The adaptation analysis of the fully mechanized coal mining face of huopu mine’s third soft coal seam...1.2m in length in the leading end of the original working face supports ZF3000/17/28, and know that working face supports ’ setting load and working resistance are lower.We...
The interaction relationship between support setting load and surrounding rockAbstract: The interaction relationship between support setting load and surrounding rock is the basis of support selection and surrounding rock control....
