Replicate ice-coring system architecture: mechanical design

Gibson, Christopher J.; Johnson, Jay A.; Shturmakov, Alexander J.; Mortensen, Nicolai B.; Goetz, Joshua J.

doi:10.3189/2014aog68a019

Cited by 11 publications

(15 citation statements)

References 11 publications

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“…The mechanical design and aspects thereof are described by Gibson and others (2014). The modular design of the actuator section was tailored to suit the existing modularity of the deep ice-sheet coring (DISC) drill (Mason and others, 2007).…”

Section: Forces Horizontal Planementioning

confidence: 99%

Replicate ice-coring system architecture: electrical, electronic and software design

et al. 2014

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ABSTRACT. The drilling of a deep borehole in ice is an undertaking that spans several seasons. Over recent decades such drilling has become widespread in both polar regions. Owing to the remoteness of the drill sites, considerable cost is associated with the drilling of a deep borehole of several thousand meters. The replicate coring system allows re-drilling of ice core at select depths within an existing parent borehole. This effectively increases the yield of the existing borehole and permits re-sampling of ice in areas of high scientific value. The replicate coring system achieves this through the combination of actuators, motors, sensors and a computerized control system. The replicate coring drill is a further development of the deep ice-sheet coring (DISC) drill, extending the capabilities of the DISC drill to include replicate coring.

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Section: Forces Horizontal Planementioning

confidence: 99%

Replicate ice-coring system architecture: electrical, electronic and software design

et al. 2014

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“…The major subsystems added to the base DISC drill were the actuator sections, a new control system, new deviation cutter heads and smaller-diameter core barrels, and a new borehole camera (Gibson and others, 2014; Mortensen and others, 2014a,b). These are described below.…”

Section: Main Replicate Coring System and Subsystemsmentioning

confidence: 99%

“…The actuator sections (Gibson and others, 2014) added to the base DISC drill enable the drill to be tilted in the borehole and pushed against the borehole wall to make the desired deviation. The actuator subsystem consists of two three-lever/cam actuators to ensure that forces can be delivered in any radial direction (Figs 7 and 8).…”

Section: Main Replicate Coring System and Subsystemsmentioning

confidence: 99%

“…Each of these accessories serves a very specific purpose. The procedure was developed to start the deviation from the parent borehole and to perform the replicate coring itself; this procedure and the use of the different cutter heads is described in detail by Gibson and others (2014). The new milling head includes the radial and axial shoes and provides an improved geometry for axial cutting.…”

Section: Main Replicate Coring System and Subsystemsmentioning

confidence: 99%

“…The following sections provide an overview of the DISC drill and RCS with additional technical details described in companion papers (Johnson and others, 2007; Mason and others, 2007; Mortensen and others, 2007, 2014a,b; Shturmakov and Sendelbach, 2007; Shturmakov and others, 2007; Bentley and others, 2008; Gibson and others, 2014; Johnson and others, 2014) with the summary of the production drilling process in Slawny and others (2014). In addition, the science requirements and concepts that led to the technical development strategy for replicate coring are defined.…”

Section: Introduction and History Of Disc And Replicate Coring Systemmentioning

confidence: 99%

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