Bolt support is through the surrounding rock of the internal rock of the rock itself to change the mechanics
State, around the roadway to form a whole and stable rock band, the use of anchor
And the joint role of the surrounding rock to achieve the purpose of maintaining the stability of the roadway. It is a positive one
Defense of the support method is a major change in mine support.
Bolt not only support the effect is good, and the use of materials province, the construction is simple, is conducive to the machine
Mechanized operation, construction speed. But the anchor can not close the surrounding rock to prevent the surrounding rock
Weathering; can not prevent the cracks between the cracks between the rock off the rock.
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