Development of empirical correlations for limit equilibrium methods of slope stability analysis

Moawwez, Muhammad Aamir; Wang, Jipeng; Hussain, Muhammad Awais

doi:10.1007/s12517-021-08375-7

Cited by 7 publications

(4 citation statements)

References 16 publications

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“…Stability criteria for slopes were established in accordance with the Ecuadorian Construction Standard (NEC-15) [ 57 ], and mechanical models of slope strips were created using the Morgenstern–Price and Spencer methods [ 58 , 59 ]. The analysis was performed with GeoStru 4 software (GeoStru Company, Cluj-Napoca, Romania), comparing the mechanical properties of different types of geogrids.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of the Effectiveness of Geogrids Manufactured from Recycled Plastics for Slope Stabilization—A Case Study

Vicuña,

Jaramillo-Fierro,

Cuenca

et al. 2024

Polymers

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This study aimed to investigate the sustainable use of recycled plastics, specifically polypropylene (PP) and high-density polyethylene (HDPE), in the manufacture of geogrids for geotechnical and civil engineering applications. Plastics were collected from a recycling center, specifically targeting containers used for food, cleaning products, and other domestic packaging items. These plastics were sorted according to the Möbius triangle classification system, with HDPE (#2) and PP (#5) being the primary categories of interest. The research methodologically evaluates the mechanical properties of PP/HDPE (0/100, 25/75, 50/50, 75/25 and 100/0% w/w) composites through tensile and flexural tests, exploring various compositions and configurations of geogrids. The results highlight the superiority of pure recycled HDPE processed into 1.3 mm thick laminated yarns and hot air welded for 20 to 30 s, exhibiting a deformation exceeding 60% in comparison to the PP/HDPE composites. Through SolidWorks® Simulation, it was shown that the adoption of a trigonal geogrid geometry optimizes force distribution and tensile strength, significantly improving slope stabilization efficiency. Based on the results obtained, a laboratory-scale prototype geogrid was developed using an extrusion process. The results underscore the importance of careful composite design and yarn configuration selection to achieve the desired mechanical properties and performance in geogrid applications. It emphasizes the potential of recycled plastics as a viable and environmentally friendly solution for stabilizing slopes, contributing to the reduction in plastic waste and promoting sustainable construction practices.

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Section: Methodsmentioning

confidence: 99%

Evaluation of the Effectiveness of Geogrids Manufactured from Recycled Plastics for Slope Stabilization—A Case Study

Vicuña,

Jaramillo-Fierro,

Cuenca

et al. 2024

Polymers

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“…Several studies and methods have been formulated to predict slope stability in terms of safety factors [86][87][88][89][90]. Landslides and mass wasting frequently occur in the country's hilly north and northwest.…”

Section: Landslidementioning

confidence: 99%

A Review of Spatial Variations of Multiple Natural Hazards and Risk Management Strategies in Pakistan

Hussain

Zhang

Moawwez

et al. 2023

Water

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Natural hazards are dynamic and unpredictable events that are a continuous threat to global socio-economic development. Humans’ reactions to these catastrophes are influenced by their proximity to the hazards and their ability to anticipate, resist, cope with, and recover from their consequences. Due to climatic changes, the risk of multiple natural hazards is expected to increase in several regions of Pakistan. There is a pressing need to understand the spatial discrepancies of natural hazards due to climate change and identifying the regions that require special measures to increase resilience, achieve adaptation, and sustainable development goals. This paper synthesizes the related literature to understand spatial variations of natural hazards due to climate changes across Pakistan. The Emergency Events Database (EM-DAT), National Aeronautics and Space Administration Global Landslide Catalog (NASA-GLC), National Disaster Management Authority (NDMA), and Pakistan Meteorological Department (PMD) are utilized to analyze spatial discrepancies and vulnerabilities to natural hazards. This study unveils that Pakistan’s current risk analysis and management strategies seem to be obsolete compared to global trends. Because of spatial variations of hazards, most research work on hazard risk assessments and risk management focuses on a single hazard, neglecting the co-occurrence impact of different natural hazards. Very limited studies are included in comprehensive multi-hazard risk strategies. Therefore, in Pakistan, risk management would require integrated multi-hazard risk assessment approaches to detect, analyze, measure, and evaluate various natural hazards, their effects, and interconnections. Moreover, the Pakistan governmental institutes dealing with natural hazards should focus on pre-disaster mitigation and resilience techniques instead of investing only in post-disaster relief activities.

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“…Benmebarek et al (2021) used PLAXIS 2D and 3D to optimize the number of piles in a row for cohesive-friction slope stabilization. Moawwez et al (2021) developed the empirical correlations for limit equilibrium (LE) methods of slope stability analysis.…”

Section: Introductionmentioning

confidence: 99%

A simple analytical model for bamboo-reinforced slopes using modified Bishop method

Chakrabortty

Srivastava

Kumar

2023

Front. Built Environ.

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Introduction: Embankments are constructed in many places for transportation purposes such as railways and roads. The stability of slopes in embankments has always been a concern, especially in cohesionless soils. There are many methods to increase the safety factor of cohesionless soil slopes using geogrids, geocells, concrete piles, and so on. The conventional material used to stabilize slopes has a huge impact on the environment. Nowadays, researchers are using natural fibers such as bamboo and coir fiber for stabilization purposes.Methods: In this paper, bamboo piles are used to stabilize slopes. The bamboo piles are inserted vertically on the slope face to increase the shear strength and stability against slope failure. A limit equilibrium method has been developed to estimate the stability of a slope improved by friction piles after modifying the Bishop method of slices. The stability of the slope is analyzed for both the reinforced conditions and the unreinforced conditions using the developed analytical formula.Results and Discussion: The analytical equations were developed by considering three modes of slope failure: shear failure of the bamboo piles along the failure surface, movement of the upper part of the soil, leaving the bamboo pile embedded in the base soil, and pulling out of the bamboo along with the upper part of the soil mass. Further validation of the results is carried out with the limit equilibrium method-based software SLOPE/W using a modified Bishop method. The factor of safety increased after reinforcing the slope with bamboo piles for all three modes.

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Development of empirical correlations for limit equilibrium methods of slope stability analysis

Cited by 7 publications

References 16 publications

Evaluation of the Effectiveness of Geogrids Manufactured from Recycled Plastics for Slope Stabilization—A Case Study

Evaluation of the Effectiveness of Geogrids Manufactured from Recycled Plastics for Slope Stabilization—A Case Study

A Review of Spatial Variations of Multiple Natural Hazards and Risk Management Strategies in Pakistan

A simple analytical model for bamboo-reinforced slopes using modified Bishop method

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