three-arm rock drilling rig

In order to actively promote the work of "mechanized substitution, automation and reduction" in the field of construction, the full hydraulic computer-guided three-arm rock drilling rig equipment was launched to replace the traditional manual hand-held pneumatic drilling rig excavation and blasting

This paper focuses on the mining tunnel of the Shenzhen-Huizhou intercity Dapeng branch line, and the goal is to analyze the technical feasibility and economic benefits of mechanized drilling and blasting method in the construction of mining tunnels.we worked to improve and adjust the blasting

Based on the Fengshuling Tunnel of Quli Railway, the factors of tunnel excavation construction efficiency and the applicability evaluation of the three-arm rock drilling rig in three different excavation conditions of long and large tunnels were analyzed. The results show that the surrounding rock

A parallel pilot tunnel with a section size of 6.5m × 6.5m in a railway tunnel is taken as an example． In view of the practical engineering problems such as the inability of the three-arm rock drill to realize the inclined cut and the long ventilation time after blasting due to the limitation of

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

This article takes the exit of the Xiaofeng Tunnel of the Yixing Railway as an example. In view of the problem of reasonable allocation of three-arm rock drilling rig operators during tunnel construction, practical optimization and improvements are made from the two aspects of construction process

Under the construction trend of "mechanization of manpower replacement and automation of manpower reduction", this study combines the construction conditions and engineering characteristics of a certain section of the Maple Ridge Tunnel of Quli Railway to use a three-arm rock drilling rig to

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

According to the guiding ideology of engineering construction advocated by relevant national ministries and commissions, "mechanization of manpower replacement, automation of manpower reduction, and intelligent unmanning", rock drilling rigs have been widely used in cave excavation construction in

With the continuous development of social economy, the scale of tunnel construction in my country is becoming more and more complete. In fact, in order to ensure the personal safety of construction workers, ensure the safety and quality of tunnel construction, and effectively speed up the

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

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

In view of the fact that the three-arm rock drilling jumbo can adapt to extreme environments such as high temperature, low temperature, high humidity and dust, the scope of use of the equipment is broadened, and the overall applicability of the equipment is studied from the adverse effects of the

The article introduces the performance advantages of the first fully hydraulic computer-guided three-boom rock drilling jumbo imported from Sweden in Shanxi Province, including construction automation control, data acquisition interaction and transmission, laser scanning of tunnel contour surface

The Boomer XL3D rock drilling jumbo produced by Atlas Copco in Sweden is an underground rock drilling equipment suitable for tunneling, rock formation drilling and underground engineering excavation. During the use of this equipment in the field of underground engineering, the voltage is often

Based on the background of the highway tunnel under construction, this article expounds that the use of a fully computerized three-arm rock drilling jumbo (ZYS113) to excavate in the surrounding rock of grade IV of the tunnel not only ensures the excavation and blasting footage

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

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

Briefly introduce that in the construction of the Dapo Tunnel of the Guizhou-Zhangzhou-Changzhou Railway, the three-arm rock drilling rig is used as the carrier, and the principle of controlled blasting is applied. The drill and blast design has been implemented in terms of high-precision initiation

At present, most of the full-section drilling and grouting equipment adopts the pneumatic down-the-hole hammer single-arm multi-functional drilling rig, which has high cost, low efficiency, slow speed and large pollution. The three-arm rock drilling rig has a large operating range, flexibility

Taking the construction of Zhangjihuai Railway Guantian Tunnel Project as an example，through theoretical analysis and field test，the following research results are mainly obtained. (1) Through theoretical analysis and field test，the hole，drilling and charging of the three-arm drilling rig