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Slide 1 An introduction to borehole surveying Who need surveys anyway? Run an electronic multi-shot survey tool Without cables, batteries or computers.

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Presentation on theme: "Slide 1 An introduction to borehole surveying Who need surveys anyway? Run an electronic multi-shot survey tool Without cables, batteries or computers."— Presentation transcript:

1 slide 1 An introduction to borehole surveying Who need surveys anyway? Run an electronic multi-shot survey tool Without cables, batteries or computers With its own QA system Look at some survey results Observe the effects of borehole deviation E N C O R E Borehole Surveys WHERE DID THAT DRILLHOLE GO?

2 FLEXIT SmartTool Survey System E N C O R E Borehole Surveys E N C O R E Borehole Surveys WHERE DID THAT DRILLHOLE GO?

3 slide 3 Without surveys, you could lose your deposit MINES & QUARRYS Exploration; coring, RAB and RC Orebody definition coring Drill & Blast development Production blasting Raisebore pilots DRILLING IS INFORMATION TECHNOLOGY, MAXIMISE IT WITH F L E X I T

4 slide 4 Without surveys, the ground isnt engineered GROUND ENGINEERING Site investigation Grout curtains Ground anchors Compensation grouting Drill & Blast tunnelling DRILLING IS INFORMATION TECHNOLOGY, MAXIMISE IT WITH F L E X I T

5 slide 5 Operating the FLEXIT MultiSmart For a multi-shot drillhole survey, you need:- The SmartTool 1SensIT in hole probe{NO film, batteries or cables } 2StoreIT pocket data pad{NO stopwatch or notes } 3An office PC with the MeasureIT and DisplayIT software Some Running Gear 3Shock sub, pressure barrel & aluminium sinker bars 4Wireline, rods, pipe or rope to run SensIT into the hole Drillsite Details 5Hole reference and measurement depth

6 slide 6 SensIT in an AusMine running gear kit

7 slide 7 Start the survey with the StoreIT data pad 1Switch ON StoreIT 2 Use SETTINGS to enter:- Hole reference number Start station depth (say, 250m) Station depth interval (say, 6m) Survey direction (say, up) 3Press DATA to confirm entries 4 Press NEW to start SensIT, using the radio chip 5 SensIT is now taking a reading every 5 secs

8 slide 8 Preparing SensIT for running into the hole 1Place SensIT in the pressure barrel, supported by the spring hanger 2Lubricate O-rings. Tighten threads by hand 3Tong up running gear threads 4Run SensIT to survey start station depth; hold it still. Spear-type landing collarBottom sub with shock assemblyTop sub assembly 3 x 1.5m aluminium spacer barsTotally sealed SensIT probe

9 slide 9 Taking the first shot with StoreIT 1Switch ON StoreIT 2Screen will show 3Press & hold OK until StoreIT peeps. Depth 250 m ( start depth) Press OK Measuring Wait..5 secs (counting down)

10 slide 10 Taking the next shot with StoreIT 1Wait until StoreIT peeps again and screen shows 2Move SensIT up 6m to the 244 m station 3Press and hold OK until StoreIT peeps. Depth 244 m( start depth-6m) Press OK Measuring Wait..5 secs (counting down)

11 slide 11 Continuing the survey with StoreIT During a survey use SETTINGS to:- Change station depth Change station interval Redo or duplicate a station End the survey Start a new survey while SensIT is down the hole

12 slide 12 1 Use SETTINGS to:- 2 Press and hold OK until StoreIT peeps. 3 Pull running gear out of the hole, remove SensIT from pressure barrel & place within 10m of StoreIT. Completing the survey with StoreIT End Survey? Press OK

13 slide 13 1Use SETTINGS to:- 2Press & hold OK until StoreIT peeps. 3Wait until download is complete 4 Switch OFF StoreIT Transfer data from SensIT to StoreIT End Session? Press OK Downloading Record No. # (counting)

14 slide 14 Download data from StoreIT to a PC 1 Connect TransIT aerial to your PC serial port 2 Switch ON StoreIT 3 Run MeasureIT software; click Download 4 The radio link and software do the rest!

15 slide 15 Quality Check system guarantees results tool movement Checks for tool movement Checks for magnetic disturbance Allows you to delete or adjust unreliable readings See the MagIC presentation

16 slide 16 A tabulation for each station of up to 17 measurements. Choose only the ones you want. A true plot of the hole in plan, E/W or N/S sections Choose the scale, colours, marks, grid spacing Any n umber of holes, collar extension on/off Supplementary data plotted against hole path Max/min hole separation Exported to any other software How would you like to see the results?

17 slide 17 How would you like to see the results?

18 slide 18 How would you like to see the results?

19 slide 19 Note: Four degree change in dip over first 2 metres Remainder of hole is relatively straight. Total error of 1.13 metres (6%) at 16 metres depth Some typical readings from a vertical hole

20 slide 20 Borehole interference in Civils projects Its so simple with FLEXIT Surveying will prove the integrity of reinforcement programs MeasureIT warns you when hole separation exceeds set limits

21 slide 21 Six inclined grout holes are collared at 150 deg. to allow for known RH deviation; see 2, 4 & 6. Unfortunately 1, 3 & 5 hadnt read the script! Displaying hole paths on a PC

22 slide 22

23 slide 23 Its so simple with FLEXIT Keep in touch with product news at

24 slide 24 Blast data Ampang Quarry Malaysia Rock type Granite Bench height 18 m Drill-hole diameter Ø89 mm Drill pattern 3x3 m 2 Explosives Emulite kg/hole ANFO 70 kg/hole Powder factor 0.46 kg/bm 3 Photo: S.O. Olofsson

25 Ive just run a MultiSmart so I know where that drillhole went! E N C O R E Borehole Surveys


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