Equipment for detecting underground utilities
Equipment for detecting underground utilities
(OP)
Hi, can you recommend me some good equipment for detecting underground utilities? We need this to place our soil borings safely. Thanks!
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Equipment for detecting underground utilities
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RE: Equipment for detecting underground utilities
I'm unaware of a magic wand device that will sweep an area clear, nor would I think you want to get bogged down doing this unless you are getting paid for it. SUE (Subsurface Utility Engineering) would help define the deliverables for this type service. Even in that case, you are working with the owning utility for the location of their facility and mapping it to a defines class level of locate.
RE: Equipment for detecting underground utilities
RE: Equipment for detecting underground utilities
http://www.geophysical.com/utilitylocating.htm
http://www.gp-radar.com/utilities.html
https://www.researchgate.net/profile/Siow_Wei_Jaw/...
Given what I've seen of the images, though, I would recommend getting a professional service to do that.
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers
RE: Equipment for detecting underground utilities
I also scoped out a large mapping project for an old historical cemetery which we looked at GPR for unmarked graves. Very expensive and we ended up adopting an alternate locating technique. Our firm is multi-national and we have the GPR equipment in-house.
I can tell you point blank there is NO magic wand out there that you jump out of truck with and start drilling. Scope your projects tighter and educate your client.
RE: Equipment for detecting underground utilities
Dik
RE: Equipment for detecting underground utilities
RE: Equipment for detecting underground utilities
Dik
RE: Equipment for detecting underground utilities
I would prefer to put the onus on the 811 guys than take that responsibility in my own hands typically though. Apparently this type of location request is free of charge at least in the USA.
See link for examples of this type of locators. These locators do have a function to approximate the depth of the electric charge they locate.
http://www.locatorsandsupplies.com/prodcat/CableLo...
RE: Equipment for detecting underground utilities
sam74, thanks for the locators examples. These handy locators is what I have been seen. I will take a look more closer at that link.
Thanks again for your replies.
RE: Equipment for detecting underground utilities
https://www.youtube.com/watch?v=pEwlWMjVdT4
and from my General Notes:
HYDROVAC OPERATION
WORK TO BE UNDERTAKEN IN ACCORDANCE WITH ALL RELEVANT SAFETY CODES
PROVIDE SAFETY BARRIERS AS REQD
PROVIDE ‘WARNING/DANGER’ SIGNAGE AS REQ'D
ALL LOCATE DOCUMENTATION MUST BE CURRENT AND MUST BE WITH THE PERSON DOING THE EXCAVATION AT ALL TIMES
ASSUME ALL CABLES TO BE EXPOSED DURING THE HYDROVACING ARE ENERGIZED. SAFE WORK PRACTICES SHALL BE DEVELOPED BETWEEN THE OWNER THE CONTRACTOR TO ENSURE SAFETY WHILE WORKING AROUND LIVE CABLES. CONTRACTOR TO ENSURE ALL EQUIPMENT AND CABLES ARE NON-ENERGISED AT ALL TIMES INCLUDING PERIODS OF INACTIVITY
HYDROVAC TRUCK SHALL BE SUITABLY GROUNDED INTO THE EQUIPOTENTIAL ZONE. PROVIDE GROUNDING PADS FOR ALL WORKERS AS REQUIRED
CONTRACTOR TO ENSURE ALL EQUIPMENT AND CABLES ARE NON-ENERGISED AT ALL TIMES INCLUDING PERIODS OF INACTIVITY
HYDROVAC AS REQD TO EXPOSE ALL BURIED UTILITIES. TAKE CARE TO PREVENT OVER EXCAVATION
ABSOLUTELY NO MECHANICAL EXCAVATION WITHOUT PERMISSION
REMOVE EXCAVATED MATERIAL AND DISPOSE AS DIRECTED BY OWNER
HYDROVAC EQUIPMENT SHALL HAVE SUITABLY SIZED WATER RESERVOIR AND DISCHARGE TANK FOR THE WORK
WAND TIP SHALL BE EQUIPPED WITH A HIGH PRESSURE NOZZLE WITH A SINGLE JET OSCILLATING HEAD. DIRECTION OF WAND SHALL BE ACROSS CONDUCTORS AND NOT PARALLEL TO THEM. DIRECT HIGH PRESSURE NOZZLE IN A CIRCULAR PATTERN TO AVOID PROLONGED CONTACT WITH CONDUCTORS.
VACUUM NOZZLE SHALL HAVE A SOFT TIP (NEOPRENE OR EQUAL) TO PREVENT DAMAGE TO THE CONDUCTOR
WATER TEMPERATURE FOR HYDROVAC OPERATION SHALL NOT EXCEED 40%%CC. WATER PRESSURE SHALL NOT EXCEED 1500 PSIG
IF DAMAGE OCCURS TO CONDUCTOR, STOP WORK, AND PROCEED AS DIRECTED BY OWNER
Check with a local operator; this may not be suitable for some soils
Dik
RE: Equipment for detecting underground utilities
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers
RE: Equipment for detecting underground utilities
RE: Equipment for detecting underground utilities
IR... that's what it essentially is. We also use hydrodemolition... much higher pressure to remove concrete...
Dik
RE: Equipment for detecting underground utilities
RE: Equipment for detecting underground utilities
Hydrodemolition is also common... under very high pressure it is possible to remove a couple of inches of concrete; I've got a couple of projects where I'm using it to remove deteriorated concrete to attach a WWM reinforced 'patch'.
Dik
RE: Equipment for detecting underground utilities
RE: Equipment for detecting underground utilities