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Underground survey
- 1. UNDERGROUND SURVEY Roll No. -:47,31,15
- 2. Overview Underground surveying isquite different from surveying on the surface. In tunnelling or mining operations it may be hot, wet, dark, cramped, dusty, dirty and dangerous, and usually most of these
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- 4. ā¢ In anunderground transport system, for instance, the tunnels are driven to connect inclined or vertical shafts (points of surface entry to the transport system) whose relative locations are established by surface surveys. Thus the underground control networks must be connected and orientated into the same coordinate system as the surface networks. To do this, one must obtain the coordinates of at least one underground control station and the bearing of at least one line of the underground network, relative to the surface network.
- 5. Automated System forContinuous Monitoring of Powered Roof Support in Longwall Panel 5
- 6. Development of 200TSelf Advancing Goaf Edge Supports 6
- 7. Rock Excavation andUnderground Space Technology Laboratory High Speed Video Camera JKSIM Blast/FRAGBLAST Software (Wipfrag) Cerchar Hardness and Abrasivity Apparatus : Unique in the Country Blast Vibration Recorders And Sophisticated Chip Based Micro Seismographs, VOD Probe Burden Ace Micro-hardness Tester Trinocular Polarising Microscope Near-field Acceleration Measuring Set-up(500,50,5 g) Brittleness Index Test Apparatus : Unique in the Country Multi-Channel Subsurface Exploration Seismographs (Geode)
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- 10. UndergroundĀ SurveyingĀ EquipmentĀ andĀ MonitoringĀ Systems ā¢ Surveying interfacesystem ā¢ LeicaĀ fieldProĀ isĀ aĀ remarkableĀ surveyingĀ interfaceĀ thatĀ combinesĀ AutoCADāsĀ 3DĀ CAD
- 11. ā¢ 3D minedesign and data measurement software ā¢ LeicaĀ fieldProĀ isĀ theĀ latestĀ integrationĀ ofĀ miningĀ technologyĀ offeringĀ immediateĀ returnĀ onĀ investment.Ā ItĀ hasĀ theĀ followingĀ features: ā¢ FaceĀ mappingĀ canĀ beĀ easilyĀ beĀ doneĀ byĀ oneĀ person ā¢ DataĀ isĀ moreĀ accurate ā¢ CaptureĀ andĀ layoutĀ ofĀ gradeĀ lines ā¢ SectionĀ andĀ faceĀ profileĀ viewing ā¢ MineĀ surveysĀ areĀ updatedĀ daily ā¢ LessĀ reworkĀ (benchingĀ /Ā slashing)
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- 14. Views of thelaboratory wind-tunnel set up By-:Sanjeet Kumar
- 15. Static pressure contourssurrounding an aerofoil section By-:Sanjeet Kumar
- 16. Mine Survey andGeomatics Laboratory Electronic Total Station. Laser Eyepiece, forĀ correlationĀ survey. Micro-optic Theodolites,Ā precise levels and other instruments Global Positioning SystemĀ (GPS)Ā singleĀ frequency.Ā Mine Surveying Computation Laboratory Digitizer And PlotterĀ forĀ plottingĀ ofĀ surveyĀ plans. SURPAC forĀ mineĀ volumetrics;Ā SKIPRO forĀ processingĀ GPSĀ data LISCAD software forĀ processingĀ fieldĀ surveyingĀ dataĀ andĀ plotting GIS Software, forĀ storingĀ andĀ processingĀ theĀ informationĀ fromĀ mineĀ plansĀ andĀ forĀ updatingĀ themĀ withĀ theĀ latestĀ information. ERDAS SoftwareĀ forĀ remoteĀ sensingĀ andĀ imageĀ processing
- 17. State of theart surveying instruments
- 18. Laser āGyro Correlationfor deep mines 18CEMT, ISM, Dhanbad, India
- 19. Challenges ahead inMining sector..Challenges ahead in Mining sector..Challenges ahead in Mining sector..Challenges ahead in Mining sector..
- 20. Common survey activityin UG are: 1.1. Survey Face Marks Ā· New Excavations: All new excavations will be marked by surveyor in red paint, consisting of left rib, centre line, right rib, grade line across the face @1.5m above design floor, back sights marked on opposite rib. The centre line will also be painted across the backs with the high is able to be reached with a paint pole. Ā· 2nd Advancement: After firing and screening the first round, surveyor will mark up the next as per a new excavation extending the center along the backs. Ā· Recording: All excavation marks made by survey will be recorded and checked against the design, before the excavation can be blasted.
- 21. 3D Laser Scanning Aterrestrial laser scanner determines the distance between a large number of object points and thescanner by emitting laser pulses in different directions and detecting the echoes from the objects. So-called pulsed scanners measure the travel time of the pulse towards an object and back. Thistechnique therefore uses the intensity of the light signal to detect when an emitted signal returns tothe scanner.Leica claims an accuracy of 6mm at 50m for the Leica HDS 3000. Opteh ILRIS 3D laser scannerprovides dynamic measuring range capabilities (3 m- 1500m) with 6mm distance accuracy. 21
- 22. Both terrestrial and airbornelaser scanners give as an output XYZ coordinates and picture of laser intensity determined by scanning about 6-8 million points easy and accurate become surfaces by using appropriate software. Prepared spatial models could be converted to any commercial CAD and GIS system for post processing
- 23. Challenges in IndianMining sector..Challenges in Indian Mining sector..Challenges in Indian Mining sector..Challenges in Indian Mining sector..
- 24. ā¢ Backfilling technology ā¢Fibre optics based automation system for deep mines ā¢ Mine Safety and Human Factor Engineering ā¢ Integrated blast design, blasting damage prediction and control for ore dilution prevention, environment friendly blasting and its control ā¢ Rapid drivage using TBMs ā¢ Diamond wire saw/chain saw cutting for extraction of ores ā¢ Geospatial technologies for exploration and delineation of ore bodies ā¢ Subsidence and its prediction ā¢ Slope and dump stability in deep surface mines ā¢ Underground mine environment, heat stress ā¢ Rock testing for dynamic properties and Joint stiffness determination for safe mine design ā¢ Mine Information System 24 By-:Sanjeet Kumar
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- 30. Thank you for yourkind attention and support By-:A15,A31,A47