What Type of Rig needed
What Type of Rig needed
(OP)
We have a 1.5 to 1.7m diameter caissons to be drilled into approximately 10 m of soft clay and 12 m of Queenston shale with an RQD of 28 to 35 %. Can Kobelco Rig or Link-Belt Rig do the job?
Thanks
Thanks





RE: What Type of Rig needed
RE: What Type of Rig needed
Regards,
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Qshake
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RE: What Type of Rig needed
RE: What Type of Rig needed
RE: What Type of Rig needed
Q
Regards,
![[pipe] pipe](https://www.tipmaster.com/images/pipe.gif)
Qshake
Eng-Tips Forums:Real Solutions for Real Problems Really Quick.
RE: What Type of Rig needed
RE: What Type of Rig needed
The rigs are mounted on cranes with 2 kelly bars.
RE: What Type of Rig needed
RE: What Type of Rig needed
Regards,
![[pipe] pipe](https://www.tipmaster.com/images/pipe.gif)
Qshake
Eng-Tips Forums:Real Solutions for Real Problems Really Quick.
RE: What Type of Rig needed
BigH's last response said only the following: "Might be so - but your RQD values were pretty low - even in what you are calling sound shale now (not supported by the RQD). They could probably star drill pretty quickly through the shale if you need to make socket. Otherwise - why not use a belled caisson (assuming that your problem is bearing)."
RE: What Type of Rig needed
Regards,
![[pipe] pipe](https://www.tipmaster.com/images/pipe.gif)
Qshake
Eng-Tips Forums:Real Solutions for Real Problems Really Quick.
RE: What Type of Rig needed