undisturbed sample

undisturbed sample

A sample of soil that has been obtained by methods in which every precaution has been taken to minimize disturbance to the sample.
References in periodicals archive ?
The first one corresponds to test 2 (see Figure 7) of the undisturbed sample (normally consolidated).
76 for 4ft undisturbed sample and for disturbed sample, the range is from 0.
Three additional new holes were drilled adjacent to above holes to obtain undisturbed sample for metallurgical testing.
In order to secure an undisturbed sample, modern samplers consist of a thin barrel and a piston; Far right: the scientific personnel and crew of Carnegie, Falmouth, 1909.
5 cm was selected owing to the presence of a large amount of gravel and pebbles in the lower layers, typical of Luvisols (Embrapa 2006), which make it difficult to obtain undisturbed samples.
North East civil engineering company Allied Exploration & Geotechnics Ltd has been called in by Banks Mining to drill a series of small diameter boreholes at different locations on the Highthorn site, to the south east of Widdrington, from which undisturbed samples of material can be removed for analysis.
North East civil engineering company Allied Exploration & Geotechnics Ltd (AEG) has been called in by Banks Mining to drill a series of small diameter boreholes at different locations on the Highthorn site, to the south east of Widdrington, from which undisturbed samples of material can be removed for analysis.
The company has completed a total of nine vertical large diameter sonic drill holes to collect undisturbed samples for assay and metallurgical testing of the waste dump material as part of its ongoing evaluation of historically mined materials.
The samples were prepared at the same relative density as undisturbed samples to represent the medium dense state (RD= 50%) using two different techniques: the dry funnel pluviation and wet deposition methods (described in the following section) and consolidated isotropically at initial confining pressures of 50 kPa, 100 kPa and 200 kPa.
Depending on the soil conditions, undisturbed samples (soil cores) may be retrieved that are suitable for soil profile description.
The undisturbed samples were taken in a depth between 0.