triple-boom rock drilling jumbo

In view of the uncertainty of the triple-boom rock drilling jumbo in the construction of weak rock tunnel, combined with the Yinling Tunnel construction project, this paper compares the construction efficiency, economic cost, construction stability, over and under excavation volume of the triple

In order to ensure the quality and safety of highway mountain tunnel construction and to solve the problem of limited construction schedule of long tunnels，it is proposed to use mechanized construction combined with smooth blasting method to achieve safe and reliable tunnel construction. In view

In order to ensure the safety and quality of the construction of Zhengzhou-Wanzhou high-speed railway tunnel and shorten the construction schedule of the tunnel,the large cross-section construction method by triple-boom rock drilling jumbo is put forward.And then proper transformations for the jumbo