To address the issues of low construction efficiency and high safety risks associated with traditional microbench method in weak surrounding rock tunnels， a three-bench construction method using a dual-boom drilling jumbo was studied based on the Ganjia tunnel of Xining-Chengdu railway（ rock

Taking the Xinfangdoushan Tunnel on the Yichang-Fuling High-Speed Railway as the engineering background, a comprehensive investigation was performed on the integrated construction technology of tunnel excavation and support. Meanwhile, a comparative analysis was conducted on the operational

Brand : EPIROC
Part No. : 3115238600
Description : Cup Seal
Use in : Cop 1238k , Cop 1440 , Cop 1838 , Cop 1838+ , Cop 1838he+ , Cop 1838mux , Cop 1838mux+ , Cop 1840 , Cop 1840+ , Cop 1850 , Cop 2550 , Cop Sc25

Tunnel construction can be easily affected by complex terrain, and in such cases, drilling and blasting become the main technical methods. This article explores the straight-eye slotting technique related to three-arm rock drilling jumbos, mainly involving equipment performance and blasting

Taking a railway tunnel project as an example, this paper analyzes the equipment selection for tunnel boring operation line from the aspects of rock drilling equipment and slag discharge equipment, explores the equipment selection for support operation line around the links such as primary support

To address the low efficiency and high risks of the traditional soft rock step excavation method, a large-section soft rock tunnel intelligent blasting excavation technology was developed and applied based on the Baokang Tunnel of the Zhengwan High-Speed Railway project. The technical principles

Rock drilling jumbos play an important role in tunnel construction. As the main component of a rock drilling jumbo, the performance of the drilling rig determines the overall effectiveness of the jumbo. In practical use, premature wear of drilling rigs often occurs. By studying the structure and

Brand : EPIROC
Part No. : 3176656800
Description : Nipple
Use in : Boltec 235 , Boltec Md , Boltec S , Boomer 281 , Boomer 282 , Boomer K111 , Boomer K41 , Boomer K41x , Boomer L2d , Boomer M1d , Boomer M2d , Boomer S1d , Boomer S2 , Boomer Xe3 , Boomer Xl3 , Cop 1838 , Cop 1840 , Cop 1840+ ...

Using the Yubai Tunnel on the Hamu high-speed railway as a case study, this paper looks at full-section tunnel construction in weak surrounding rock. By optimizing drilling and blasting techniques, applying guided fracture controlled blasting, improving shotcrete quality, and reasonably adjusting

Two-lane and three-lane highway tunnels，this paper analyzes the differences between highway tunnels and railway tunnels from multiple perspectives． Combining the successful experience of fullprocess mechanized design and construction of railway tunnels and the characteristics of two-lane and three