Analysis of Slope Stability of Fly Ash Stabilized Soil Slope

Rajak, Tarun Kumar; Yadu, Laxmikant; Pal, Sujit Kumar

doi:10.1007/978-981-13-0368-5_13

Cited by 21 publications

(12 citation statements)

References 5 publications

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“…Another important element of waste management is using mixtures with other wastes or mineral soils. As the presented research indicate and, among others, research by Rajak et al [57], the addition of fly ash increases the shear strength of natural soils. They stated that the factor of safety of a 37° slope, obtained from calculations in the FLAC/Slope program, increased with the increase in Numerous publications (among others: [22,[51][52][53][54][55][56]) indicate that the problem of slope stability in industrial waste landfills is an important engineering issue.…”

Section: Results Of Stability Calculationssupporting

confidence: 83%

Shear Strength of Industrial Wastes and Their Mixtures and Stability of Embankments Made of These Materials

Gruchot¹,

Zydroń²

2019

Applied Sciences

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The paper presents the results of research on the influence of compaction on the shear strength of fly ash, unburnt and burnt coal wastes, and a composite (a mixture of unburnt coal waste and 30% of fly ash). The tests were carried out in a triaxial compression apparatus on samples with a diameter and height of 10 and 20 cm, respectively. In order to verify usability of the tested waste materials for earthworks, stability calculations of the road embankment made of these materials were carried out. It was shown that the tested materials were characterized by high values of shear strength parameters, which significantly depended on compaction. The most favorable values of the angle of internal friction and cohesion were obtained for the burnt coal waste, slightly lower for the composite, and the lowest for the fly ash. Stability calculations for the road embankment model showed that the slope inclination and the load on the embankment have a significant influence on the factor of safety. It was also shown that a decrease in cohesion causes significant decrease in the factor of safety. The tests and the stability calculations showed that the tested waste materials are useful for earth construction purposes.

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Section: Results Of Stability Calculationssupporting

confidence: 83%

Shear Strength of Industrial Wastes and Their Mixtures and Stability of Embankments Made of These Materials

Gruchot¹,

Zydroń²

2019

Applied Sciences

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“…According to Sridharan et al. (1997) , this can be attributed to the silty nature of fly ash which was later validated by Rajak et al. (2019) .…”

Section: Ground Improvement Using Chemical Stabilisersmentioning

confidence: 92%

“…Prabakar et al (2004) concluded that the addition of fly ash in highly cohesive soil brings down the cohesion while increasing the angle of friction. According to Sridharan et al (1997), this can be attributed to the silty nature of fly ash which was later validated by Rajak et al (2019). Bin-Shafique et al (2010) and Karim et al (2017) studied the effect of fly ash on the durability of plastic and expansive clay and concluded that UCS of such soil increase with cycles of wetting while decrease with a freeze-thaw cycle which could occur due to expansion of water in pores.…”

Section: Ground Improvement Using Fly Ashmentioning

confidence: 93%

Ground improvement using chemical methods: A review

Verma

Ray

Rai

et al. 2021

Heliyon

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Ground improvement will be critically important in the present and future geotechnical practice for designing the structures in weak soil. This paper presents a review of the recent development in ground improvement techniques, especially chemical stabilisers. Various available chemical stabilisers are identified and compared with other available methods. Though the use of chemicals provides an excellent alternative to the traditional methods, they still lack proper understanding regarding their use, handling, application, and long-term effect on the environment. Various chemical stabilisers and their applicability conditions are summarised in the present paper. Insight of biochemical, electrochemical, inorganic, and organic stabilisers is presented with future scope of these methods along with the potential areas where a lot of efforts is needed to industrialise these methods are also discussed briefly. A need for developing a more environmentally friendly and safe method was felt while reviewing these methods. Lack of a large amount of data is a major concern for lesser use of these methods industrially. A lot of laboratory and field experiments should be conducted in different conditions to ensure safe results from chemical stabilisers.

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“…Improvement of the engineering properties of the soil by mixing fly ash was evaluated by several researchers [41][42][43][44][45]. Effective utilization of fly ash in slope stability and construction of embankments was also reported in various literatures [46][47][48]. Indraratna et al [49] studied the engineering behaviour of a low carbon pozzolanic fly ash and its potential as a construction fill.…”

Section: Stability Of the Ob Dumpmentioning

confidence: 99%

Effect of fly ash on geotechnical properties and stability of coal mine overburden dump: an overview

2020

Self Cite

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The management of overburden (OB) materials needs proper attention to safe mining operations. Several mine OB dump failures have been occurred due to inappropriate geotechnical and geometrical parameters. Increasing consumption of coal in thermal power plant also generates huge amount of ash which adversely affect the environment and its utilization is a great challenge. The present paper reviews the effect of fly ash on the different geotechnical properties and stability of coal mine OB dump material to explore a safe and effective utilization of fly ash. It was found that up to 30% fly ash can potentially modify the compaction characteristics, California bearing ratio value, unconfined compressive strength, and shear strength parameters of OB dump material. Based on the review, it may be suggested that fly ash-OB mix can be effectively utilized in the mine OB dump and for the mine haul road construction thus, provides an alternative mode of fly ash utilization in huge quantity.

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Analysis of Slope Stability of Fly Ash Stabilized Soil Slope

Cited by 21 publications

References 5 publications

Shear Strength of Industrial Wastes and Their Mixtures and Stability of Embankments Made of These Materials

Shear Strength of Industrial Wastes and Their Mixtures and Stability of Embankments Made of These Materials

Ground improvement using chemical methods: A review

Effect of fly ash on geotechnical properties and stability of coal mine overburden dump: an overview

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