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A New Method for the Estimation of Hydraulic Permeability, Coefficient of Consolidation, and Soil Fraction Based on the Dilatometer Tests (DMT)

Simon Rabarijoely

Simon Rabarijoely

Faculty of Civil and Environmental Engineering, Warsaw University of Life Sciences– SGGWWarsaw, Poland
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Rabarijoely, Simon
  
30 dic 2019
A New Method for the Estimation of Hydraulic Permeability, Coefficient of Consolidation, and Soil Fraction Based on the Dilatometer Tests (DMT)'s Cover Image
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Categoria dell'articolo: Research Articles
Pubblicato online: 30 dic 2019
Pagine: 212 - 222
Ricevuto: 05 mar 2019
Accettato: 17 lug 2018
DOI: https://doi.org/10.2478/sgem-2019-0021
Parole chiave
© 2019 Simon Rabarijoely, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1

Example of the DMTA decay curve from the Stegny site.
Example of the DMTA decay curve from the Stegny site.

Figure 2

Scheme of groundwater flow to the DMT membrane (DMTC) and assumed segment of sphere (Garbulewski et al., [21]).
Scheme of groundwater flow to the DMT membrane (DMTC) and assumed segment of sphere (Garbulewski et al., [21]).

Figure 3

Location of test sites in the region of Poland.
Location of test sites in the region of Poland.

Figure 4

Grain size distribution curve obtained from laboratory tests for mineral soil from the described sites.
Grain size distribution curve obtained from laboratory tests for mineral soil from the described sites.

Figure 5

Typical soil profile at the Stegny Pliocene clay site showing the main dilatometer test DMT results.
Typical soil profile at the Stegny Pliocene clay site showing the main dilatometer test DMT results.

Figure 6

Typical soil profile at the SGGW Campus boulder clay site showing the main dilatometer test DMT results.
Typical soil profile at the SGGW Campus boulder clay site showing the main dilatometer test DMT results.

Figure 7

Typical soil profile at the Nielisz dam organic mud and mud site showing the main dilatometer test DMT results.
Typical soil profile at the Nielisz dam organic mud and mud site showing the main dilatometer test DMT results.

Figure 8

Comparison of test results obtained with the proposed formula and obtained immediately after field tests with a dilatometer.
Comparison of test results obtained with the proposed formula and obtained immediately after field tests with a dilatometer.

Figure 9

Comparison of the hydraulic permeability (kh) value between the measured and proposed chart from the Nielisz dam and Stegny sites.
Comparison of the hydraulic permeability (kh) value between the measured and proposed chart from the Nielisz dam and Stegny sites.

Figure 10

Proposed relationship between DMT, tflex (in minutes) and hydraulic permeability of the soil.
Proposed relationship between DMT, tflex (in minutes) and hydraulic permeability of the soil.

Figure 11

Pressure dependencies p0 and p1 together with isolines to determine the clay fraction
Pressure dependencies p0 and p1 together with isolines to determine the clay fraction

Figure 12

Pressure dependencies p0 and p1 together with isolines to determine the silt fraction.
Pressure dependencies p0 and p1 together with isolines to determine the silt fraction.

Figure 13

Pressure dependencies p0 and p1 together with isolines to determine the sand fraction.
Pressure dependencies p0 and p1 together with isolines to determine the sand fraction.

Figure 14

Comparison of the soil fraction obtained from laboratory and dilatometer (DMT) tests results.
Comparison of the soil fraction obtained from laboratory and dilatometer (DMT) tests results.

Index properties of mineral and organic soils at the Nielisz, Stegny and SGGW Campus test sites (Interrim reports [22])_

SitesSoil typeOrganic content Iom (%)CaCO3 content (%)Water content wn (%)Liquid Limit wL (%)Unit density of Soil ρ (t/m3)Specific density of Soil ρs (t/m3)
NieliszOrganic mud (Mor)20–30-120–150130–1501.25–1.302.25–2.3
Organic mud (Mor)10–20-105–120110–1301.30–1.452.30–2.40
StegnyPliocene clays (Cl)--19.20–28.5067.6–88.02.1–2.22.68–2.73
SGGW CampusBoulder clay (clSa)--5.20–20.1021.9–26.62.0–2.22.68–2.73
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Geoscienze, Geoscienze, altro, Scienze materiali, Compositi, Materiali porovati, Fisica, Meccanica e dinamica dei fluidi
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