The DW single hydraulic prop is a constant resistance prop, which can be used with various top beams or as a main pillar. It can be used for general mechanized coal mining or blasting working face support item, also can be used for comprehensive mechanized coal mining face end support or other temporary support. Then let's follow Xiaobian to analyze the precautions for its special support wood stack.
DW single hydraulic prop working face
1. Do not use round wood, three-edged wood, mixed seeds, rotten wood, damaged or deformed wood for piling.
2. The wood stack should be made of square or triangular wood of the same size. If the length of the material is not uniform, it is required to align it along the side of the work surface.
3． The level of the wooden stack is consistent with the inclined surface of the working surface, and the uphill angle should be consistent with the uphill angle of the basic support.
4． The contact points of the layers of the wood stack are up and down in a straight line.
5． The length of the wooden stack should not be less than the row spacing, and should generally be not less than 1.2 meters.
6. The length of the wooden piles after being overlapped shall not be less than 0.15 meters, and they shall be 90 ° to each other.
7. When stacking wooden stacks, check the support at that place first. If the support is damaged or incomplete, handle it properly before setting up the wooden stack.
8. Erecting the wooden stacks more than 15 meters ahead of the post.
9. When stacking a wooden stack at a fault or crack, the wooden stack is erected on both sides of the fault or crack, and it is not allowed to play only one wooden stack directly below it.
