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The Impact of Different Strain Rates of Polypropylene Geotextiles on Slope Factor of Safety Cover

The Impact of Different Strain Rates of Polypropylene Geotextiles on Slope Factor of Safety

Open Access
|Apr 2025

Figures & Tables

Figure 1:

Plain weave geotextile (Shukla, 2017).
Plain weave geotextile (Shukla, 2017).

Figure 2:

Geotextile subjected to testing (own photography).
Geotextile subjected to testing (own photography).

Figure 3:

Flowchart of the research process.
Flowchart of the research process.

Figure 4:

a) INSTRON tensile strength machine, b) extensometer (own photography).
a) INSTRON tensile strength machine, b) extensometer (own photography).

Figure 5:

Comparison of typical results for different stretching speeds (own work).
Comparison of typical results for different stretching speeds (own work).

Figure 6:

Slip curves along with the obtained factor of safety (own work).
Slip curves along with the obtained factor of safety (own work).

Figure 7:

Slip curves along with the obtained factor of safety (own work).
Slip curves along with the obtained factor of safety (own work).

Figure 8:

Slip curves along with the obtained factor of safety (own work).
Slip curves along with the obtained factor of safety (own work).

Figure 9:

Increase in strength for woven geotextile with the strain rate (own work).
Increase in strength for woven geotextile with the strain rate (own work).

Compilation of tensile test results for the tested samples_

20 mm/min2 mm/min0.2 mm/min

Tensile strength (kN/m)Strain at maximum tensile strength (%)Tensile strength (kN/m)Strain at maximum tensile strength (%)Tensile strength (kN/m)Strain at maximum tensile strength (%)
130.005.7029.356.6028.7010.30
231.205.7030.357.0027.459.00
331.055.2028.206.6027.159.10
433.445.6029.207.3027.159.30
532.255.6029.906.7026.709.30
Max value33.445.7030.357.3028.7010.30
Min value30.005.2028.206.6026.709.00
Average value31.555.6029.406.8027.459.40
Standard deviation0.2600.200.1610.300.1520.50

Reduction factors_

A1A2A3A4
1.531.101.001.00

Parameters of the geotextile subjected to testing_

Tensile strengthMaximum elongation at loadStatic puncture resistanceDynamic puncture resistanceThicknessUnit massPore size characteristics
Length-wiseWidth-wiseLength-wiseWidth-wise4.3 kN8.3 mm0.37 mm200 g/m2190 μm
32 kN/m32 kN/m18%14%

Functions of geosynthetics_

Type of geosyntheticFiltrationSeparationReinforcementSealingProtectionDrainageBarrier
WovenXXX X
NonwovenXXX XX
Geogrids X
Geonets XX
Geocomposites XX XX
Geomembrane X X X

Geotechnical parameters of soils_

Type of soilThickness t (m)Specific gravity ɣ (kN/m3)Dry density ρd (g/cm3)Angle of internal friction φ′ (°)Cohesion c’ (kPa)
1. MSa5191.33320
2. siCl5201.741520
DOI: https://doi.org/10.2478/sgem-2025-0009 | Journal eISSN: 2083-831X | Journal ISSN: 0137-6365
Language: English
Page range: 134 - 144
Submitted on: Jun 7, 2024
Accepted on: Dec 20, 2024
Published on: Apr 17, 2025
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2025 Wiktor Sitek, Agnieszka Kiersnowska, Vazgen Bagdasaryan, Eugeniusz Koda, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution 4.0 License.