FuHongXian

Analysis of Configuration Types and Efficiency of Drilling Jumbos in Mechanized Construction of Railway Tunnels

In China's railway tunnel construction,the drilling-blasting method dominates with an application rate exceeding 70% and is gradually developing towards fullprocess mechanized operation. Drilling jumbos are the key equipment in mechanized drilling-blasting construction, and their configuration

Single-track tunnel

Research and Application of Large Machinery and Spatial Arrangement in SingleTrack Tunnels of High-Speed Rails

Mechanized construction becomes the mainstream direction of future tunnel construction with its advantages of high efficiency and low costs. Based on the Qinling Taihang Mountain Tunnel Project, the large mechanical equipment used in various stages of drilling-blasting construction is sorted out

railway tunnel

Drilling and Blasting Test Research Using Drill⁃jumbo in Qinling Taixingshan Tunnel of Xi’an-Ankang High Speed Railway

Based on the application status of rock-drilling jumbo， in order to solve the problem of large average linear overbreak amount when drilling and blasting with rock-drilling jumbo， the section of grade Ⅲ surrounding rock (DK23 +075—DK23 + 155) at the left tunnel entrance of Taixingshan tunnel