Basically a thermite welding process utilizing a copper based material. Into these trenches 12' ground rods would be driven to 24" below grade and 4/0 bare copper grounding cable, (mostly) would be affixed to the driven ground rods via "CadWeld" securement. Trenches were always several hundred feet in length, wrapped around buildings, 30" below grade and typically 18" in width to allow working room. Much of the groundwork was contracted out but a company I favored and would travel where needed preferred a large Takeuchi skid steer with a front mounted backhoe attachment. We installed a lot of counterpoise grounding and bonding systems around navigational sites over the years. Or take both machines and knock it out twice as fast, but that may be extra hauling I don't need to do? Anyone have any direct comparison on relativly shallow trenching with a full size TLB vs 35 sized mini? Thanks in advance. The mini ex my help can run so I could be working on other tasks. So the question comes down to should I take my Case 480E backhoe w/ 18" trenching bucket or Kubota U35-4 mini ex w/ 12" trenching bucket (or both?) I *think* the backhoe may be faster in open ground like this, but I'm also the only one that can run it. I'll have my CTL on site for the fence building and leveling pads for the waterers, grading and backfilling. Hopefully I'll have at least one helper, but may be doing it by myself. Trying to decided on what equipment to take to do the job as quickly and efficiently as possible. The job is only 28mi away but with a truck and trailer takes almost an hour to get there, like most places around here. Soil conditions can vary from loam, to heavy clay, to shale and can occasionally be rocky. I've got somewhere between 1800-2400' of water line to bury at a depth of 2 feet. The area we'll be trenching is open pasture and fairly rolling ground but not super steep. It's an NRCS cost share job for one of my regular customers and will involve fencing, new well installation, and installation of 3 automatic cattle waterers and maybe a frost free hydrant or two. I'm in the planning stages for a job I'll hopefully be doing in the next month or two.
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