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Diamond Drilling Division
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1. Diamond Drilling Division:
1. The company operate a Diamond Drilling Division (3D) with specialist engineers using advanced equipment.
2. The construction industry is very good at building with concrete walls and concrete floors, but services need holes drilled in that concrete and that demands a highly specialist team of engineers and equipment.
3. Dismantling and refurbishment also needs holes to be cut for breaking and removal of materials.

2. Unique Factors:
1. Specialist trained engineers.
1. Diamond Drilling Certification.
1. Advanced equipment.
1. Liquid or gas cooling.
1. Noise insulation, barriers and working at height.
1. CCTV to ensure engineers can see all sides of the work at the same time.
1. Special cleaning of recycled cooling liquids.
1. Own low voltage power supply generators.
1. Own low voltage LED lighting.
1. Before and after photographic evidence of work done.
1. Online evidence shared with client in real-time.
1. Daily sign-off by client of verified work done.
1. No hand tools and no HAV liabilities.
1. No engineer working at height so reduced safety risk.
1. Automated stich drilling using a one meter steel marker.
1. A large number of small holes need less power and create less waste than larger holes.
1. Automated drilling machine bolted to the floor to reduce risk.
1. Adjustable arms to lock the drilling rig into a physical position - wall-to-wall and floor-to-ceiling.

3. 3D Service:
1. Your assigned Site Manager is a highly specialist diamond drilling engineer who is equiped with the very best equipment.
2. CCTV is deployed to ensure that the engineers can see all side of the work as drilling progresses.
3. Dust and noise suppression is built into the method of working with large physical barriers to ensure that people cannot get close to a working drill.
4. Gas and recycled water cooling is deployed to help with dust supression and to minimise the risk of fire.
5. CCTV ensures that hot spots can quickly be identified and drilling stopped until additional cooling methods are deployed.
6. Two types of fire extingisher are part of the drilling rig to provide extra cooling when needed.

4. Drilling Rig:
1. The portable drilling rig is based on a 24 volt battery powered tracked platform that is designed to climb a stair way.
2. Manual handling risks are minimise by using this self-propelled drilling rig that is only 666 mm wide and will fit though normal door openings.
3. Robotic arms are extended in three directions to physically secure the drilling platform before drilling begins.
4. Pads on the end of each arm spread the load and protect the surface of the walls, floor and ceiling.
5. The drilling head is on an arm that can be pointed in any direction and can reach up to 3 meters high without any extra platform.
6. Where 110 volt power supply is available, then this can be used to power the drill head. A portable electric generator may be used where a 110 volt supply is not available.

5. CCTV:
1. Whatever the client pays for the client owns including copyright to the CCTV recording with before and after photographic evidence.
2. Drilling has two parts: where the drill goes in and where the drill comes out - engineers must continually monitor both sides at the same time.
3. The risk of fire is more likely on the side where the drill comes out and so that must be monitored to ensure that cooling by water or gas is adequate at all times.
4. If any person crosses a physical barrier and moves towads the drilling head, the drill must automatically sense the person and must automatically shut down.
5. Under no circumstances is it reasonable to have a person close to the drilling head while it is drilling.
6. Not only must health and safety take priority, photographic evidence of compliance with health and safety regulations is mandated.

6. Stitch Drilling:
1. Where a large opening is required for a lift shaft or Automatic Opening Ventelator (AoV), then stitch drilling is used.
2. A metal frame is used to mark out the scope of a drilled slot - up to one meter at a time.
3. The size of the drill is minimised so the amount of debri to be removed is minimised - typically 20 mm drill bits are used.
4. The drilling rig is set to automatically drill a series of holes every 20 mm within the metal frame.
5. A large slab will require adequate support posts to retain the physical location of the slab during the drilling operation.
6. Extra holes to fit a chain with hoist that can be used to gently lower the slab may be recomended.

7. Excavation Covering:
1. Each and every hole drilled in a floor must quickly be covered to eliminate the risk of a fall or injury.
2. A large matal plate that cannot be accidently kicked out the way is recommended.
3. Physical barriers must remain around the excavation until the hole is covered.
4. Where 100 mm service holes have been drilled, then a wooden dowel and top plate will minimise the risk of trips and spills.
5. Every excavation increases the risk of fire and smoke being spread via the excavation - holes should be covered with a fire-proof material and may need to be smoke-resistant.

Social Media:
1. Stop living in the good old days and learn that this modern era is driven by massive amounts of social media.
2. What was good enough will not buy a crust in the next decade, 3D must be sold, pushed, tweeted and glorified to an extreme degree.
3. Social media is not a part time activity that can be overlooked - it is critical to the survival of the company.
4. At least one person must be full time dedicated to generating news stories about 3D and must counter every news story that references a competitor - your future depends of this method of working.
5. One web site is not good enough - ten competive web sites promoting each and every different aspect of diamond drilling is mandated.
6. While fake news may be bad for some, it is reasonable and honest to publish a story that the latest engineer to join was nearly late for their first appointment because a train was delayed.   The first news story is backed up with many associated stories about people delayed by construction project that were abandoned because the client did not pay.
7. A large number of research stories about the drilling rig mobile platform will generate interest in the industry.   Fantastic ideas can be circulated as to what may become available next year - social media is not about facts its about opinions that continual reference 3D and the wonderful world of diamond drilling.

Stitch Drilling Research:
1. Experiment: 600mm by 600mm AOV opening in 100mm concrete.
2. Option 1: 100mm drill.
3. Option 2: 20mm drill.
4. Option 3: 100mm drill in each corner and 20mm drill down each side.
5. The experiment was to determine:
  (1) Cost of each option.
  (2) Time taken for each option.
  (3) Quality provided by each option.
6. The experiment identified that the cost and time for each option was proportional to the volume of waste to be removed.   The volume = depth * pie * radius squared = cubic mm.
7. The 20mm drill removes a volume = 100 * 3.14 * 10 * 10 = 31,400 cubic mm.
8. The 100mm drill removes a volume = 100 * 3.14 * 50 * 50 = 785,000 cubic mm (25 times greater).
9. Each side of the opening is 600mm, so 30 holes are drilled using the 20mm drill and 6 holes are drilled using the 100mm drill.   For all four sides the corner hole is replicated so a total of 118 holes are drilled using the 20mm drill and 22 holes are drilled using the 100mm drill.
10. Total waste volume was 3.7 million cubic mm using the 20mm drill and 17.3 million cubic mm using the 100mm drill (five times more).   Option 3 had 4 holes of 100mm and 4 times 20 holes of 20mm with total waste volume of 5.6 million cubic mm.
Conclusion:
1. All 3 options got the job done and it can be subjective as to the quality of the finished opening.
2. The cost using the 20mm drill was almost five time less than when using the 100mm drill - the 100mm drill is very expensive and had a lot of debri to remove.
3. The time was less when using the 20mm drill, but a lot more setting up was required - a simple method is needed to reposition the drill every 20mm.
4. The quality of option 3 was subjectively nice with curved corners, but that may not match what the client asked for or expected.
Appendix:
1. Another experiment is proposed to drill the corners and saw the sides.   Sawing can be more effective than drilling because the saw blade is only 5mm thick - less waste to remove.
2. The experiment ignored the effect of steel rebar on the drilling operation.   It may not be practical to experiment with rebar placement effects.
3. A drilling rig is needed where the drill head can be quickly repositioned for stitch drilling purposes.   Costs can be reduced by reducing set up time and drilling a larger number of smaller holes.   Labour is the major cost and labour costs are driven by the time to do the job where set up time is more than the drilling time.

Document Control.
1. Document Title: Diamond Drilling Division.
2. Description: Diamond Drilling Division, policies and guidelines.
3. Keywords: Diamond Drilling Division, policies and guidelines.
4. Privacy: Shared with approved people for the benefit of humanity.
5. Edition: 1.1.
6. Issued: 2 Jan 2018.