long and large tunnel Research on the Application of Three-Arm Drilling Rig in Excavation Construction of Long and Large Tunnels 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
drilling rigs Product Model Summary of Rock Drilling Rigs In this paper, based on the industry standard and the application situation and naming method of the product models of rock drilling rigs from the main domestic and foreign manufacturers, the compilation principles and methods of the product models of rock drilling rigs and the application and
railway tunnel Smooth Blasting Technology and Application of Straight Hole Cutting with Three-Arm Ｒock Drill in Small Section Tunnel 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
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drilling rigs Optimization Analysis of Excavation Cost for Drilling Rig in Xiaowangou Iron Mine In order to solve the problem of slow tunneling speed of hard rock roadway in metal mines，and in response to the call of "mechanized replacement and automation reduction"，more and more mines use drilling rigs to replace manual hand-held air drills to improve perforation efficiency，thereby improving
tunnel engineering The Application of Three-arm Rock Drilling Rigs in Mechanizing Tunnel Construction to Reduce Manpower and Improve Safety 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
three-arm rock drilling rig Discussion on the Application and Management of Three-arm Rock Drilling Rigs in Tunnel Construction 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
blast furnace Research on Installation Methods of Blast Furnace Hydraulic Rock Drill Hydraulic rock drill is the core component of blast furnace taphole machine, and the installation quality directly affects its working efficiency, application cost and benefit creation. Its matching size and shape and position tolerance requirements are very strict, and the site location space
long tunnel Analysis and Research on the Construction Application of Three-Arm Rock Drilling Rig in Long Tunnels 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
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highway tunnel Discussion on the Application Stages and Improvement Measures of Three-Arm Rock Drilling Cart for Highway Tunnels 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
three-arm rock drilling rig Research on the Application of Three-Arm Rock Drilling Rig in Cavern Excavation Construction of Hydropower and Water Conservancy Projects 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
