This paper introduces the general situation of a single-hole double-track high-speed railway tunnel project, and combines the actual construction of its large-section soft surrounding rock tunnel project. The application technology of construction, optimization of construction operation plan

Excavation costs account for a large proportion of the construction costs of railway tunnels. In order to reduce project costs, it is the general trend to replace manual excavation with three-arm rock drilling rigs. Based on the hydrogeological conditions and construction technology of

Brand : EPIROC
Part No. : 3222324961
Description : Hydr. Cylinder
Use in : Roc L6

With the continuous development of social economy, the scale of tunnel construction in my country is getting bigger and bigger. In practice, in order to ensure the safety and quality of tunnel construction and the personal safety of construction personnel, and to speed up the construction progress

The rock drilling rig is a special machine used for drilling holes and installing anchor rods in the drillingblasting operations. With the thriving demands for the rock drilling rigs in the domestic markets, the development of rock drilling rigs has seen fierce competitions. The axles

The paper covers the development and evolution of leading foreign rock drilling machinery manufacturers such as Ingersoll Rand, Eprioc, Atlas Copco, FAGERSTA, Montabert, and Sandvik, as well as the developmental history of rock drilling machinery and drilling tools. It also gives some advice on the

The hydraulic rock drill is the core component of the rock drilling support trolley, and its performance determines the use efficiency of the equipment. However, there will be various failures in the use and maintenance. Through the analysis of the causes of different failures, the root causes

Brand : SANDVIK
Part No. : 85843849
Description : Seal
Use in : Hl 500 , Hl 500s , Hl 510 , Hl 560

With the rapid development of highway transportation industry in recent years, there are more and more long tunnels built in the severe cold areas of North China, but the construction difficulties are also more and more, and the requirements of construction technology are also improved

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