Mechanization is essential for improving the safety and environmental conditions of tunnel drilling and blasting operations. Currently, China is facing serious problems with regard to tunneling, such as difficulties in recruiting blasting workers, fully utilizing the drilling trolley

The investment impact of large－scale Mechanized Matching in Construction of Railway Tunnels with drilling and blasting method is analyzed in this paper． Taking a newly built railway tunnel project as an example，the economy and construction schedule of Ⅰ，Ⅱ and Conventional mechanized Matching schemes

Brand : SANDVIK
Part No. : 15175668
Description : Coupling
Use in : Hl 500 , Hl 500s , Hl 510 , Hl 560

Combined with the engineering practice of high-speed railway tunnels, the mechanized selection of excavation lines is compared and analyzed, the advantages and disadvantages of advanced support construction of different pipe diameters are compared, and the control technology of over

Briefly introduce that in the construction of the Dapo Tunnel of the Guizhou-Zhangzhou-Changzhou Railway, the three-arm rock drilling rig is used as the carrier, and the principle of controlled blasting is applied. The drill and blast design has been implemented in terms of high-precision initiation

Simba_H1354 rock drilling rig is a medium and deep hole rock drilling equipment imported from abroad by Anhui Development Mining Co., Ltd., as the service life increases, due to the failure of the hydraulic working system, there are problems such as low drilling efficiency and high cost of

At present, most of the full-section drilling and grouting equipment adopts the pneumatic down-the-hole hammer single-arm multi-functional drilling rig, which has high cost, low efficiency, slow speed and large pollution. The three-arm rock drilling rig has a large operating range, flexibility

Brand : EPIROC
Part No. : 5112322469
Description : Hub
Use in : Boomer S1d

The paper outlines EPIROC’s COP MD20 hydraulic rock drill and analyzes its advantages in usage. This hydraulic rock drill is compared with COP 1838 in terms of structural features. The paper also assesses the technical road of double- side oil return system and the prospect of COP 1838 product.

In recent years, large-scale highway construction and development has become the main melody of the transportation sector, under this trend, the traditional tunnel construction technology can not meet the national environmental protection, low energy consumption, economy and high safety and quality