drilling paterns in undergrund mining

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  • Drilling Paterns In Undergrund Mining

    Home >News >Drilling Paterns In Undergrund Mining Drilling Paterns In Undergrund Mining Prompt : Caesar is a famous mining equipment manufacturer well-known both at home and abroad, major in producing stone crushing equipment, mineral ,...

  • Drilling advances in underground coal

    Drilling remains a vital component of the mining process and is used for multiple purposes including ore body characterisation (with electronic geo-sensing technologies and sampling), surface and underground blast hole drilling, underground roof and wall ,...

  • Underground Drilling and Blasting Training DVD

    Oct 24, 2012· Underground Drilling and Blasting Training DVD - ACG , those keen to learn more about drilling and blasting in underground min , blasting mining underground (compilation drilling and ....

  • Underground drill hole deviation measuring device

    Dec 06, 2018· Drilling is one of the critical elements in the process of rock breakage The location (including length and orientation), explosives charge, and detonation sequence of blast holes are strategically selected to produce the most efficient and optimal rock fragmentation The consequences of deviation in drill hole trajectories from the designed pattern include build-ups, hang-ups and ,...

  • Drilling and Blasting

    Jan 11, 2011· For a long time the specific charge in mining production blasting has been kept at 10 kg/m 3 more or less, with a higher value in underground mining and a lower one in open pit mining The specific charge also depends on the rock mass and the explosive...

  • Chapter 8 BLAST DESIGN

    Chapter 8 BLAST DESIGN (Figure 8-2) Staggered pattern (Figure 8-3) Sing , The economic analysis of the use of explosives is an important part of blasting operations in mining and construction Explosives are energy, and the efficient use of this energy is a major factor in keeping rock blasting , the shot will allow for an expansion of the ....

  • P&H 77XR Blasthole Drill

    The P&H 77XR blasthole drill, with 77,000 pounds of maximum bit loading capacity, can be configured for rotary or hammer drilling, diesel or electric power, and single- or multi-pass drilling This machine is designed to deliver an up to 10% maintenance and repair cost advantage and up to ,...

  • Drill hole deviation measuring device

    The consequences, therefore, of a deviation in drill hole trajectories from the initial designed pattern result in build-ups, hang-ups and poor rock fragmentation This leads to extra drilling, loss of drill strings, ore dilution, ore loss, increased explosive consumption, time wastage and delays in the chain of production operations...

  • Underground mining (hard rock)

    Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, usually those containing metals such as ore containing gold, silver, iron, copper, zinc, nickel, tin and lead, but also involves using the same techniques for excavating ores of gems such as diamonds or rubi...

  • Coal mining

    Coal mining - Coal mining - Underground mining: In underground coal mining, the working environment is completely enclosed by the geologic medium, which consists of the coal seam and the overlying and underlying strata Access to the coal seam is gained by suitable openings from the surface, and a network of roadways driven in the seam then facilitates the installation of service facilities ....

  • Drilling and blasting

    Drilling and blasting is the controlled use of explosives and other methods such as gas pressure blasting pyrotechnics, to break rock for excavation It is practiced most often in mining, quarrying and civil engineering such as dam, tunnel or road construction The result of rock blasting is ,...

  • Underground Drill & Blast Solution

    Datamine is the world's leading provider of technology to seamlessly plan and manage mining operations Aegis is an automated underground drill & blast design solution that compares different scenarios, generates ring layouts, charging plans & blast designs , with electronic detonators to design ring patterns that can transform underground ....

  • Drilling in mining

    Apr 07, 2014· The drill site should be well examined and procure the required tools and man power for preparing the site for drilling 6 The drill pattern is designed as per the technical requirements of the overall mining The drilling personnel need to get this drill pattern and accurately mark the drilling pattern...

  • Drill and Blast Method

    Drill and Blast Method Drill and blast method is mostly used method for the excavation throughout the world The method can be used in all types of rocks and the initial cost is lower than the mechanical method like TBM This tunneling method involves the use of explosiv...

  • (PDF) ROCK BLASTING FOR MINING

    ROCK BLASTING FOR MINING , A lot of methods are adopted to exploit the valuable economic mineral resources through open cast mining or underground mining methods , A drilling pattern ,...

  • Blasting pattern design

    Aug 11, 2019· Underground Mining -Theory and Experiences is place where theory and design examples for underground mines can be , We are going to give an example on blast pattern design for the case of underground drift (4 x 3m) with rectangular cross section Parameters that we are using are: , If we are using drilling jumbo for drilling 3m long, 51mm ....

  • Lecture 4: Underground Mining

    Nov 02, 2011· Underground mining, Underground mining methods Lecture 4: Underground Mining 1 Hassan Z Harraz [email protected] 2010- 2011 This material is intended for use in lectures, presentations and as handouts to students, and is provided in Power point format so as to allow customization for the individual needs of course instructors...

  • Raising methods in metal Mines

    Metalliferous Mines and Mining Methods Mechanized Under Ground Mining and Mechanized Open Cast Mining Mineral Gold, Copper, Lead and Zinc, Graphite Extraction of Ore Mines Safety Legalization, Training and Development in Min , Raising methods in metal Min , Down the Hole Production Drilling Pattern ....

  • (PDF) Underground mining Methods

    Longwall mining is a highly mechaniz ed underground mining sys tem for mining coal It set of longwall mining equipment consists of a coal shear er mounted on convey or operating...

  • Drilling patterns

    Jan 06, 2019· In this video explain the wedge cut pattern which is used in solid blasting Important questions for mining compition exam https://youtube/nfm7rutwzbo *Seco....