high-speed railway tunnel Construction technology of three-arm rock drilling trolley in weak rock tunnel with large cross section in high-speed railway The article takes the Zhengwan high-speed railway 9 standard project as an example. This project successfully applied 10 three-arm rock drilling rigs for drilling and blasting excavation, especially in the exit section of Xingshan tunnel, and successfully applied to large sections of Ⅳ and Ⅴ
hydraulic drifter Review of Doofor Hydraulic Rock Drills from Finland The paper compiles information on several models of Doofor hydraulic drills from Finland and analyzes the designation and meanings of models of Doofor hydraulic drills. It also parses and reviews performance features,design concepts and structure characteristics, providing reference for users
railway tunnel Comparison between Rock-drilling Jumbo and Manual Drilling-and-Blasting of Railway Tunnel The further analysis on the advantages and disadvantages and the applicability of pneumatic drill and rockdrilling jumbo for high-speed railway tunnel is of great significance. The application of pneumatic drill in drilling and blasting and restrictive factors of drilling and blasting of rock
parts search 1613901400 Brand : EPIROCPart No. : 1613901400Description : Oilseparat ElemUse in : Boltec Lc , Boomer L2c , Boomer L2d , Boomer M2c , Boomer M2d , Boomer Xe3 , Simba L6c , Simba M6c , Simba M7c
hydraulic rock drilling Exploration into Modular Design Plan for Full-Hydraulic Rock Drilling Cramp The paper concerns a modular full-hydraulic rock drilling system. With its modular design, this rock drilling system can be combined easily according to the requirements of design to meet the demands of particular drilling and excavating of the tunnels. Operating on the pressurized fluid
Circuit breaker Analysis and Improvement of Circuit Breaker Tripping Fault for a Rock Drilling Taking a drill jumbo as the background it is to analyze a failure in circuit breakers turning off for no reason.First of all it has to analyze principles of 2 sets of power supply in 380VAC and 24V DXC used in the jumbo in consideration with the principles so as to get a most optimal detecting way
drilling jumbo Test and analysis on performance of drilling arm hydraulic system of drilling jumbo The drilling jumbo is an important equipment for mining mechanization, the working performance of the drilling arm hydraulic system directly affects the operation efficiency of the drilling jumbo. After testing for the performance of the drilling arm hydraulic system, the impact, rotation
tunnel Application and Research of Three-arm Rock Drilling Rig in Gathering Water Pressure Surface Blasting 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
Three-arm hydraulic drill jumbo Construction Analysis of Grouting Drilling of Three -arm Hydraulic Drill Jumbo Combined with the engineering project,the characteristics and construction principle of the improved three-arm hydraulic drill jumbo are elaborated,the key points and matters needing attention in the construction of grouting drilling of the three-arm hydraulic drill jumbo are introduced
parts search 55154977 Brand : SANDVIKPart No. : 55154977Description : Hose ReelUse in : Dd 311 , Dd 321
Zhengzhou-Wanzhou High-speed Railway Discussion on Large-scale Mechanized Matching and Its Informatied Application to Zhengzhou-Wanzhou High-speed Railway Tunnel Construction 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
SURPAC Application of SURPAC in underground mining phase of Longjiama copper polymetallic mine in Huatai,Tibet Based on the geological modeling with SURPAC software,the stope division and the third grade ore volume report are carried out for the gentle dip thick ore body of Jiama copper mine.The design guidance of medium and deep hole drilling and blasting is made, and the ore loss and dilution
