Mainly used in roadwayconstruction, excavation rock and soil volume, opencast working, blom up holes of explosion & pre-intensity, for water conservancy projects.
主要用于道路建设、土石方开挖及露天开采，水利工程爆破孔、预烈孔的凿岩工序，是理想的高效穿凿设备。
2
How to select road section shape, bolting parameter and roadwayconstruction method in large section cut in thick coal seam according to production reality and bolting theory are introduced.
In the rock roadwayconstruction, the chemical corrosion water-bearing surrounding rock roadway, large area from spilled water or the ineffective partial pouring water part, adapt to stone support.