Based on the actual situation of the Dongshan Tunnel on the Shilou to Fenyang Expressway in Shanxi Province, the article proposes a specialty from the steel structure processing, tunnel advanced geological prediction, excavation, support, waterproofing and drainage, lining, maintenance and civilized

This paper takes the new mechanized tunnel shelving model of S company, a third -level subsidiary of a large -scale construction enterprise of the central government, as the research object, based on the relevant principles of the new institutional economics,and combined with the primary source

Brand : SANDVIK
Part No. : 15191708
Description : Gasket
Use in : Hl 1500 , Hl 1560t , Hl 300 , Hl 500 , Hl 500s , Hl 510 , Hl 560

Aiming at complicated geological conditions, large buried depth, excessive toxic and harmful gases,and high altitude in Sichuan⁃Tibet region, through investigation and analysis of the current situation of large⁃scale mechanical construction equipment in a certain section of Sichuan⁃Tibet Railway

There are potential safety hazards in the full-section excavation method of tunnels in soft surrounding rock, especially the unpredictability of tunnel face collapse and block falling conditions, which will bring great personal and life threats to construction workers. The Yulongshan Tunnel of the

Taking the shaft construction of No. 2 return air shaft project as an example, based on the analysis of the mechanical conditions of the surrounding rock of the shaft, the paper puts forward the design principles of drilling and blasting parameters and the theoretical calculation basis, then

The remote control and even automatic operation of mining equipment is the core of realizing the intelligent construction of mines. In this paper, based on the rock drilling operation in the production area of the Yanyanshan Iron Mine with the sub⁃pillar caving method, the existing Simba1354 medium

Brand : EPIROC
Part No. : 3115546800
Description : Guide
Use in : Cop 1840+ , Cop Sc25

The COP1838ME rock drill is a rock drilling equipment that has multiple functions such as impact, rotation, propulsion, and flushing. Taking the Atlas COP1838ME rock drill as an example, this article introduces the damage to the main components of the rock drill, analyzes the causes of damage to the

Based on the application of the three - arm rock drilling trolley in the excavation and drilling construction of a single line railway tunnel, this paper controls the Angle of the excavation cut hole and the surrounding hole through the modification of the beam and the adjustment of the on-site