highway tunnel

In the process of rapid development of infrastructure construction, many highway construction projects have been approved and invested in various cities, and in some cases, it is inevitable that highway tunnel construction will be involved. Highway tunnel construction not only involves a series

In the construction of highway tunnel projects, drilling and blasting is the most widely used construction technology. Its main principle is to use explosives to blast for excavation. In the charging process, blasthole drilling is an important part. The use of intelligent rock drilling rigs can

In order to clarify the application method and application effect of three-wall drilling trolley in highway tunnel engineering excavation construction, combined with the Beidouping Tunnel example, the excavation construction process of the three-arm drilling trolley and the problems existing in the

This paper analyzes the application of three-arm rock drill truck in different tunnel excavation stages，and discusses its key points of application and problems in different stages. Combined with an actual project，this paper analyzes the economic differences between manual excavation and mechanical

Based on a certain highway tunnel project, this article discusses the mechanized supporting construction technology, and formulates a feasible mechanized supporting construction plan based on the actual situation, covering various processes such as excavation and invert processing, and introduces

In order to solve the existing problems of manual drilling and support in highway tunnel construction in the past, a new construction technology based on a fully computerized multi-arm rock drilling rig and wet spraying unit is proposed. The specific construction process, methods and points

The rock drilling trolley is a piece of typical mechanical equipment for tunnel construction. For the hard and complete surrounding rock conditions, the rock drilling trolley has high speed, low unit energy consumption, fewer employees, high safety and good blasting quality, which is the main

In recent years, the construction level of tunnel engineering in my country has been improved, and related construction equipment has been continuously updated, which has provided a great impetus for the development of engineering construction. Reasonable configuration of mechanical

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

With the rapid development of science and technology in China, great changes have taken place in the construction technology of tunnels. "Mechanization, informatization and intelligence" has become the inevitable trend of future development. Combined with the application of multi-arm rock

This paper introduced the principle and process flow of full computer multi arm jumbo in tunnel drilling blasting construction，put forward the specific measures to improve the full computer multi arm jumbo construction efficiency，and from the construction precision，schedule，cost three aspects