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Influence of the heterogeneity of a dump soil on the assessment of its selected properties

Sebastian Olesiak
Sebastian Olesiak
   | 30. Sept. 2020
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Article Category: Original Study
Online veröffentlicht: 30. Sept. 2020
Seitenbereich: 263 - 275
Eingereicht: 07. Nov. 2019
Akzeptiert: 23. Juli 2020
DOI: https://doi.org/10.2478/sgem-2020-0001
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© 2020 Sebastian Olesiak, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1

View of the dump soil samples: (a) after extracting from Shelby tube (∅ ∅70 mm), (b) after extracting from PVC tube (∅ ∅100 mm) and (c) cross sections.
View of the dump soil samples: (a) after extracting from Shelby tube (∅ ∅70 mm), (b) after extracting from PVC tube (∅ ∅100 mm) and (c) cross sections.

Figure 2

Histogram of the dump soil water content distribution.
Histogram of the dump soil water content distribution.

Figure 3

Histograms of water content distribution of the dump soil in particular groups.
Histograms of water content distribution of the dump soil in particular groups.

Figure 4

Histogram of the dump soil bulk density distribution.
Histogram of the dump soil bulk density distribution.

Figure 5

Histograms of bulk density distribution of the dump soil in particular groups.
Histograms of bulk density distribution of the dump soil in particular groups.

Figure 6

Changes in the average water content, bulk density and consistency of the dump soil for particular sections of the samples.
Changes in the average water content, bulk density and consistency of the dump soil for particular sections of the samples.

Figure 7

Correlation between bulk density and water content of dump soils.
Correlation between bulk density and water content of dump soils.

Figure 8

Illustration of the results of strength tests of soil of soft consistency (A-1 and B-1) from one sample.
Illustration of the results of strength tests of soil of soft consistency (A-1 and B-1) from one sample.

Figure 9

Illustration of the results of strength tests of soil of firm consistency (A-2 and B-2) from one sample.
Illustration of the results of strength tests of soil of firm consistency (A-2 and B-2) from one sample.

Figure 10

Illustration of the results of strength tests of soil of stiff consistency (A-3 and B-3) from one sample.
Illustration of the results of strength tests of soil of stiff consistency (A-3 and B-3) from one sample.

Figure 11

Illustration of the results of strength tests of soil of very stiff consistency (A-4 and B-4) from one sample.
Illustration of the results of strength tests of soil of very stiff consistency (A-4 and B-4) from one sample.

Figure 12

Result of strength tests for soil A-1.
Result of strength tests for soil A-1.

Figure 13

Result of strength tests for soil A-2.
Result of strength tests for soil A-2.

Figure 14

Result of strength tests for soil A-3.
Result of strength tests for soil A-3.

Figure 15

Result of strength tests for soil A-4.
Result of strength tests for soil A-4.

Figure 16

Result of strength tests for soil B-1.
Result of strength tests for soil B-1.

Figure 17

Result of strength tests for soil B-2.
Result of strength tests for soil B-2.

Figure 18

Result of strength tests for soil B-3.
Result of strength tests for soil B-3.

Figure 19

Result of strength tests for soil B-4.
Result of strength tests for soil B-4.

Figure 20

The disparity of results of cohesion and angle of internal friction for soil A-3.
The disparity of results of cohesion and angle of internal friction for soil A-3.

Result of strength tests.

Dump soil groupCohesion [kPa]Angle of internal friction [°]Number of samples/specimens
cuMinMaxϕuMinMax
A-123.1912.1837.232.751.003.956/27
A-246.6638.9861.653.712.115.4311/71
A-373.2550.76109.615.221.618.1525/155
A-489.5168.91142.606.892.507.836/45
B-112.075.8119.493.903.404.374/18
B-233.2417.5458.716.984.387.607/34
B-348.8427.6293.7111.605.5112.9113/91
B-4111.4285.50145.4112.2310.0013.416/39

Results of bulk density tests of the dump soil in particular soil groups.

Dump soil groupAverage [10−3 kg/m3]Standard deviation [10−3 kg/m3]Minimum [10−3 kg/m3]Maximum [10−3 kg/m3]Number of specimens
A-12.050.061.872.1327
A-21.940.141.712.1571
A-31.940.151.532.19155
A-41.920.131.662.1445
B-12.010.091.852.2118
B-21.980.131.682.1234
B-31.980.121.672.1991
B-42.100.111.792.2339

Results of water content tests of the dump soil in particular soil groups.

Dump soil groupAverage [%]Standard deviation [%]Minimum [%]Maximum [%]Number of specimens
A-125.452.6520.2530.7527
A-226.877.0517.6440.3071
A-325.997.4013.6444.46155
A-425.505.2115.9037.8145
B-122.414.8516.2134.0218
B-221.995.5516.5538.1734
B-321.374.1311.8529.2291
B-417.104.6510.0831.6939

General information on the samples.

BoreholeDepth range [m]Number of samples
GTO-961.0–99.014
GTO-110.0–38.511
GTO-240.0–72.010
GTO-556.4–93.016
GTO-321.0–62.313
HSdr-14D23.0–46.68
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