Hello, everyone
This is Enta.
Drilling Depth and Machine Size in Ground Anchor and Rebar Insertion Work (Part 1)
Drilling Depth and Machine Size in Ground Anchor and Rebar Insertion Work (Part 2)
Based on my previous post, I decided to put together a table.
| Machine Dimensions | Machine Type: Skid-mounted | Crawler-type | |||
| Inverter Chisel (7WL) | M's (40III) | Teisaku (TRP30) | Taisaku (TSD50II) | Rotary Percussion | |
| Evaluation Criteria | Koken Kogyo (RPD20L) | Koken Kogyo (RPD45) | Koken Kogyo (RPD75DR) | ||
| Weight of Drilling Machine | Around 300 kg | Around 500 kg | Around 1,400 kg | Around 2000, 2500– | 12 metric tons and up |
| Drilling Machine Dimensions (Length and Width) | 2,200–・750– | 2,700 and up・1,200 and up | 3,600 and up・1,500 and up | 3,900 and up・1,700 and up | 7,600 and up・2,400 and up |
| Drill Hole Diameter | φ65–90 (Down-the) | φ65–135 | φ65–135 | φ65–145 | φ90–225 |
| Scaffolding | Required | Required · Outdoor shoes allowed | Required · Outdoor shoes allowed | Required · Outdoor shoes allowed | Dirt Yard |
| Monorail | 1 axle, 500 kg | 1 axis: 500 kg (preferably at 40 degrees or less) | 2-Axle, Up to 2,000 kg, Dump Truck Specifications | 3-Axle, Up to 3,000 kg, Dump Truck Specifications | Not allowed |
| Cableway (Log Haulage) 80% | 2.9 metric tons (2.3 metric tons) | 2.9 metric tons (2.3 metric tons) | 2.9 metric tons (2.3 metric tons) | 5.1 metric tons (4.0 metric tons) | Not allowed |
| Iwa District | Soft Rock I– | Soft Rock I–II | Soft Rock I – Medium-Hard Rock | Soft Rock I–Hard Rock | Soft Rock I–Hard Rock |
| Iwa-kyu | D~CM | D~CM | D~CH | D~CH~ | D~CH~ |
As for drilling, this is just my opinion as a contractor, lol.
With a down-the-hole hammer, you can drill through even fairly hard rock.
Prices for hoist-type drilling rigs are listed in the market price list, so please refer to that.
Adjustment of Market Unit Prices for Rebar Installation Based on Site Conditions (Site Conditions I)
The Excel file is available below
[wpdm_package id=’47787']
