WangYueZhang

In order to improve the quality of tunnel construction, especially the weak surrounding rock tunnel, and ensure its construction safety, the traditional excavation method is replaced by a fully computerized three-arm rock drilling rig, so as to speed up the tunnel construction progress and enhance

The three-arm rock drill trolley is an important large machinery and equipment in the tunnel excavation, and its remarkable environmental protection, high eff iciency and safety features make the trolley more and more widely used, especially indispensable in the construction of long tunnels