test hole

test hole

[′test ‚hōl]
(mining engineering)
A drill hole or shallow excavation to assess an ore body or to obtain rock samples to determine their structural and physical characteristics.
References in periodicals archive ?
Last October the firm said it had drilled a 180ft test hole and was "happy" with the results, showing grades of golf of up to 1.8g/t in places and traces of the other two metals, which it added closely matched the findings of exploration by Consolidated Goldfields in 1983 and of the British Geological Survey.
After locking the capsule in a test hole, the instrumented capsule is fixed by a bracket and robotic arm support systems.
Mark Sarssam, Chief Operating Officer, commented, "We are very pleased with the speed and efficiency with which this test hole has been drilled.
Bemove the barreled action and enlarge the alignment test hole to accept the stock screw.
The sample acquisition manoeuvre comes a week after the rover drilled a small test hole in the same rock slab.
Wanting a basement, I dug a test hole in late August and hit permafrost at 13 feet.
Technological advancements in equipment have led to more accurate horizontal positioning of utilities while the vertical positioning has remained a function of the SUE QL-A Test Hole. What alternatives are there when access or economics renders a SUE QL-A Test Hole unfeasible?
The double-ring infiltrometer has a higher accuracy than single-ring infiltrometer and test hole. A new simple apparatus of double-ring infiltrometer was developed to test the permeability of soil and 24 pairs of trials were conducted.
The test hole was drilled from underground and intersected Black Fox mineralization at approximately 700 m vertical from surface, extending the mine's west zone by an additional 300 m at depth.
Bosses at Ineos Nitriles want to drill a 2.5-mile-deep test hole at Seal Sands.
The 31-ton drill made a shallow, preliminary test hole today in the solid rock it must bore through, the first step in the week-long digging of a "pilot hole" to guide the way for the rescue.
Poor and nonsignificant linear correlation was found between the logarithms of [K.sub.s] and PT for the upper layer at depth between 28-33 cm, indicating that the upper layer or horizon in the soil profile had no effect on the water flow rate results from the percolation test hole. In contrast, a highly significant negative correlation (p = .002) was found between the measurements of [K.sub.s] and PT of the middle layer at depth of 50-60 cm (Figure 2).

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