The depth vs. depth plot: An aid to selecting piezometer installation depths in boreholes |
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Authors: | Robert C. Dick |
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Affiliation: | Piteau Gadsby Macleod Ltd., North Vancouver, B.C. Canada |
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Abstract: | Dick, R.C., 1976. The depth vs. depth plot: an aid to selecting piezometer installation depths in boreholes. Eng. geol., 10: 37–42.The location of the piezometric surface within a soil or rock mass is often the critical factor in stability analysis and in evaluations of reservoir watertightness. Sealed piezometers are now almost universally used to measure water pressure within the mass. The location of these piezometers must be decided immediately upon completion of each borehole. A common aid to making this decision is a plot of borehole depth and borehole water level as functions of time. This paper introduces the reader to another way to evaluate the same data, with the borehole water depth plotted as a function of borehole depth. Anomalies can be detected more easily, and piezometers installed within these zones. Examples are given. |
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