tunnel engineering

In order to effectively prevent tunnel construction safety accidents and ensure high-quality construction of major projects, traditional tunnel construction methods are gradually transforming into large-scale mechanization. The three-arm rock drilling rig is widely used due to its advantages of fast

At present, three-arm rock drilling rigs are often used during tunnel construction in my country. Due to the complex geological conditions of the surrounding rock at the construction site, and full-section construction is not carried out, the construction effect can be improved by supporting fully

With the rapid development of the transportation industry, the national highway network continues to expand to remote mountainous areas in the southwest. The number of highway projects in mountainous areas is also increasing year by year, and the proportion of extra-long tunnels is increasing.

Based on the research on the cost and influencing factors of the three-arm rock drilling rig in expressway tunnel engineering, the article mainly focuses on the project overview, the basic parameters and applicability of the three-arm rock drilling rig, and the use of the three-arm rock drilling

With the development of mechanical equipment technology and intelligence, more and more intelligent computer technologies have been widely promoted and applied in construction machinery. At the same time of high efficiency, the quality of construction work is improved, the staffing of construction

Relying on the construction practice of the southern section of the Gansu-Shenzhen Passenger Line, the large-scale mechanized supporting and information application construction of the tunnel construction are studied, mainly by selecting the ZYS113 fully computerized three-arm rock drilling rig

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

With the continuous development and innovation of highway tunnel construction technology，manual drilling and blasting of tunnels is gradually being replaced by mechanized supporting construction. Summarizes the efficiency and benefit of the three-arm rock drilling rig in the mechanized constructio

As a new type of tunnel construction tool，the three-arm drilling rig is widely used in excavation，anchor construction and auxiliary operation of highway，railway tunnel，underground cavern excavation and other large section construction projects. This paper mainly combines the engineering practice

The drilling and blasting method for tunnel has many disadvantages such as low mechanization,bad construction environment and high labor intensity. Hence,the large cross-section construction technologies for Hubei Section on Zhengzhou-Wanzhou High-speed Railway are summarized from the aspects