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 ?
Rubicon also plans to drill another test hole from the 685-metre level to target an area that is more than 500 m below the historic McFinley Deposit.
The test hole planned for the James' property is meant to be just 8 1/2 inches wide but would go deep below ground, first through the water table and a mile through sediment before hitting the top of a crystalline rock layer.
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.
What alternatives are there when access or economics renders a SUE QL-A Test Hole unfeasible?
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.
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.
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 the shallow end, the test hole was dug to a depth of 5 1/2 feet (or 9 1/2 feet below deck grade.
But that's an expensive proposition for even a preliminary test hole.

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