Investigating Effect of Soil Grading Parameters on Tool Wear in Mechanized Tunneling using EPB-TBM Machine

Ansari, Taha; Chakeri, Hamid; Darbor, Mohammad; Amoun, Sadegh; Shakeri, Hadi

doi:10.22044/jme.2023.13319.2447

Document Type : Original Research Paper

Authors

Faculty of mining engineering, Sahand University of Technology, Tabriz, Iran

https://doi.org/10.22044/jme.2023.13319.2447

Abstract

There is no acceptable method for investigating the tool wear phenomenon in soft grounds. In this article, first, a new equipment made at Sahand University of Technology is introduced, which is used for simulation of TBM tunneling mechanism. Next, the effect of various soil grading parameters such as D₁₀, D₃₀, and D₆₀ (which indicate the corresponding diameters on the soil grading diagram where 10, 30, and 60% of the grains are smaller than these values, respectively), coefficient of gradation, uniformity coefficient, sorting coefficient and effective size on the cutting tools wear. The initial studies show that in soils with fine grains greater than 10%, by increase in the values of D₁₀, D₃₀, D₆₀, and effective size, the tool wear increases. However, in soils with fine grains less than 10%, by increase in the above-mentioned parameters, the soil abrasiveness reduces. Also in soils with more than 10% fine grains, by increase in the coefficient of gradation value, the soil abrasiveness reduces. But in soils with fine grains less than 10%, by increase in the value of this parameter, the tool wear increases. The results of experiments show that sorting coefficient could be a good criterion for investigating the soil abrasiveness.

Keywords

Main Subjects

Mechanized Excavation

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Journal of Mining and Environment

Investigating Effect of Soil Grading Parameters on Tool Wear in Mechanized Tunneling using EPB-TBM Machine

References

References

Volume 15, Issue 1
January 2024
Pages 301-321

Investigating Effect of Soil Grading Parameters on Tool Wear in Mechanized Tunneling using EPB-TBM Machine

References

References

Volume 15, Issue 1January 2024Pages 301-321

Volume 15, Issue 1
January 2024
Pages 301-321