Laboratory Testing of a Radial-axial Loading Splitting Tool.
Anderson SJ; Swanson DE
MISSING :26 pages
To define the technical competence and capabilities of a nonexplosive excavation concept, the Bureau of Mines conducted reduced-scale laboratory tests of a mechanical excavation tool called a rock splitter. Hydraulically actuated splitters, capable of generating both radial and axial loads on a predrilled hole, were designed and fabricated. Through paired variable testing and drifting simulation, reduced-scale splitter performance was evaluated in concrete. Testing proved that the rock splitter is capable of excavating within the highly confined drift setting and that it offers a distinct advantage over splitters that can generate radial loads only.
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