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sciencedirect.com
article
https://www.sciencedirect.com/science/article/pii/S2772883825000731
equilibrium method (LEM) integrated with the unsaturated soil mechanics concepts. Results revealed that the combined use of the primary and secondary geotextile reinforcements significantly improves slope stability by mitigating shear stresses near the slope face, reducing shallow failure surfaces, and ensuring global stability. Drainage-enabled geotextiles were particularly effective, facilitating rapid dissipation of pore pressure, lowering the phreatic surface, and achieving a higher factor [...] Global warming has intensified erratic climatic events, such as increased rainfall, flooding, and rapid drawdown, often triggering slope failures. This study investigates the influence of primary and secondary geotextile reinforcements on the stability of unsaturated soil slopes under rapid and transient drawdown conditions. Seepage forces were analyzed using the effective stress B-bar method and finite element method (FEM), while slope stability was assessed using the limit equilibrium method [...] a higher factor of safety (1.790) compared to non-drainage geotextiles (1.439). These findings highlight the dual role of geotextiles in providing reinforcement and drainage, confirming their potential as a sustainable solution for mitigating slope failures during rapid drawdown in the face of climate uncertainty.
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scribd.com
article
https://www.scribd.com/document/318681998/Geotextile-Reinforced-Slope
This document provides an overview of a slope stability analysis model that examines a steep slope reinforced with three different geotextile materials. The model includes a surcharge load added at the top of the slope and analyzes a wedge type failure surface passing through the ends of the reinforcement and toe of the slope. Additional examples of slope stability models are available in the Slide verification manuals and examples folder.
# Geotextile Reinforced Slope Analysis [...] Geotextile Reinforced Slope Analysis
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# Geotextile Reinforced Slope Analysis
Geotextile Reinforced Slope Analysis
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# Geotextile Reinforced Slope Analysis
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scdot.org
article
https://www.scdot.org/content/dam/scdot-legacy/business/pdf/geotech/2022-by-c…
test. Slope stability analyses should account for interface shear strength along a geocomposite drain. The geocomposite/soil interface will most likely have a friction value that is lower than that of the soil. Thus, a potential failure surface may be induced along the interface. Geotextile reinforcements (primary and intermediate layers) must be more permeable than the reinforced fill material to prevent a hydraulic build up above the geotextile layers during precipitation. Special emphasis on [...] not be the case. The analysis is based on a 2-part wedge model to predict LB assuming that the reinforcement interface is the weakest plane. The frictional resistance provided by the weakest layer in contact with either, the geosynthetics and reinforced soil (i.e., the interface friction) or between the reinforced soil and the foundation soil. The frictional resistance between the reinforced soil and the foundation soil will depend on whether the foundation soil is Sand-Like or Clay-Like. [...] reinforced slope with a computer program. Layout includes number, length, design strength, and vertical distribution of the geosynthetic reinforcement. The charts presented in Figure D-8 provide a method for generating a preliminary layout. Note that these charts were developed with the specific assumptions noted in this figure. Analyze the reinforced soil slope with the trial geosynthetic reinforcement layouts. The most economical reinforcement layout must provide the maximum stability
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library.geosyntheticssociety.org
article
https://library.geosyntheticssociety.org/wp-content/uploads/resources/proceed…
2. Slope geometry, reinforcement layout and soil parameters used in the study: (a) 40°, 50°, 60° unreinforced slope; (b) 40° reinforced slope; (c) 50° reinforced slope; (d) 60° reinforced slope. 3. STABILITY ANALYSIS AND DEVELOPMENT OF DESIGN CHARTS The stability analysis of the slopes presented in Figure 2 (a-d) was carried out using the limit equilibrium method (LEM) provided in a commercial software, Slope/W. It should be noted that Slope/W has also been used by other researchers (Sun and [...] Salih Keskin and Laman 2014). The outcome of these research has established that reinforcing slopes with geosynthetic layers significantly improves the bearing capacity of the footing and reduces settlement. The literature shows that there is a limited study on the stability analysis of reinforced slopes that are not subjected to footing loads on the crest. A typical application of the outcome of such investigations is landscape works. Mehdipour et al. (2013) investigated the stability of [...] (Sun and Zhao 2013, Seward et al. 2011) to develop stability charts. The slope stability modelling was conducted by adopting the Morgenstern-Price method of analysis, auto-locate critical slip surface search technique, Mohr-Coulomb soil model and reinforcement fabric option in the software. Details on the modelling process has been discussed by Baah-Frempong and Shukla (2018) Based on the model validation carried out by Baah-Frempong and Shukla (2018) using data reported by Zonberg et al.
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link.springer.com
article
https://link.springer.com/article/10.1007/BF00880706
analysis of the reinforced slope is presented. Internal stability deals with the resistance to pullout failure within the reinforced soil zone resulting from the soil/reinforcement interaction. The external stability is considered by an extension of the bilinear wedge method which allows a slip plane to propagate horizontally along a reinforcing sheet. The results for total tensile force, internal and external stability are presented in the form of charts. [...] A procedure for the stability analysis and design of geosynthetic reinforced soil slopes over a firm foundation is described. Firstly the unreinforced slope is analysed, and for this a circular failure method is used which allows a surcharge load to be taken into account. Any method of slip circle analysis could be used to identify the coordinates of the centre of the slip circle, its radius and the minimum factor of safety. In this study, both internal and external stability analysis of the [...] Google Scholar
Leshchinsky, D. and Reinschmidt, A.J. (1985) Stability of membrane reinforced slopes,American Society of Civil Engineers, Journal of Geotechnical Engineering,111, 1285–1279.
Google Scholar
Murray, R. (1982) Fabric reinforcement of embankments and cuttings, inProceedings of the Second International Conference on Geotextiles, Las Vegas, Nevada, USA,3, pp. 707–13.
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agruamerica.com
article
https://agruamerica.com/slope-stability-analysis
The correct geosynthetic reinforcement must be determined to meet both long-term strength and soil interaction requirements. Failures commonly occur at interfaces, especially where geotextile and soil interact. Therefore, a stability analysis can evaluate the compatibility of the slope with a geosynthetic material as well as ensure the safe design of a slope. [...] Slope stability analysis accomplishes four key objectives: it determines the long-term survivability of existing and excavated slopes, evaluates the effectiveness of proposed reinforcements, calculates shear strength and designs a successful slope.
## Conducting Slope Stability Analysis [...] The geometry of the slope, incorporated materials, soil, environmental (soil gasses) and geological forces (seismic and groundwater) are only a few of the factors to consider in determining slope stability. A careful analysis can assess the likelihood of sliding or collapse of the slope, its impacts and proper reinforcement techniques.
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etasr.com
article
https://www.etasr.com/index.php/ETASR/article/download/5842/3109
aimed to design a geotextile-reinforced slope for a target FoS (FoST), using the following steps: Checking unreinforced stability of the final slope configuration to determine the zone of soil contributing to failure and likely to be dislodged from the original soil mass. FHWA recommends values for sliding, local squeezing/bearing capacity failure, and deep-seated stability. Checking the estimated tensile strength of soil reinforcement to achieve the desired FoS with the design chart data [...] all the necessary analyses to design both homogenous and non-homogenous embankments with geotextile reinforcements. Keywords-geotextile; reinforced slope design; deep-seated failure; Bishop's simplified method; seismic analysis I. INTRODUCTION Civil engineers frequently utilize reinforced soil structures to stabilize embankments and slopes. Geosynthetic reinforced soil slope stability has been analyzed in . Various natural and man-made factors may lead to slope instability . Different factors [...] the bottom boundary represented by line EF. If any trial surface violates any of these conditions, they are termed "invalid" and are not considered for stability analysis. Fig. 1. Entry-exit method. C. Design of a Stable Reinforced Slope The developed tensile force in the reinforcement must be determined to determine the stability of the reinforced soil slope. The tensile force generated by the reinforcement contributes to an increased resistance moment around the center of rotation of the
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library.ctr.utexas.edu
research
https://library.ctr.utexas.edu/hostedpdfs/tsusm/0-6792-1.pdf
Slope stability analysis should account for interface shear strength along a geocomposite drain. Geotextiles must be more permeable than fill material to prevent build-up during precipitation. Special emphasis on the design and construction of subsurface drainage features is recommended for structures where drainage is critical for maintaining slope stability. Redundancy in the drainage system is also recommended for these cases. Surface water runoff should be collected above the reinforced [...] Analysis Figure 20. External Stability Analysis of Geosynthetic Reinforced Steep Slopes (Berg et al., 2009). The analysis performed in Step 5 should provide the factor of safety for failure surfaces behind the reinforced soil zone. However, as a check, classical rotational slope stability methods such as Bishop (1955), Morgenstern and Price (1965), Spencer (1967), or others may be used. Appropriate computer programs may also be employed. To determine local bearing failure at the toe (lateral [...] Owner Engineer: Opotiki District Council Contractor: Tracks Concrete Limited Purpose: Support Structure for Building Geosynthetic Material: Reinforcement: Polyester Geogrid Facing: Wire Mesh Drainage: Geocomposite Slope Angle: 70° Design Method: Static and seismic slope stability analysis was performed. The analysis included internal stability of the reinforced soil block, global and sliding stability. Construction Sequence: Geogrid were laid between the wire mesh units to provide long