Evaluating Overburden Materials for Haul Road Construction with and Without Cellular Confinement: A Comprehensive Study in Indian Context

Mining is a vital global industry, supplying essential raw materials, minerals, and metals. Haul roads are crucial in efficiently transporting large quantities of materials within mining operations. This research focuses on strengthening mine haul roads’ GSB/base layers by introducing geocells as re...

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Bibliographic Details
Published in:Minerals & metallurgical processing 2024, Vol.41 (6), p.3395-3408
Main Authors: Gouda, Jagdish, Srinivasan, V., Reddy, D. Sitarami, Shende, Rahul
Format: Article
Language:English
Subjects:
Basalt
California bearing ratio
Engineering
Haul roads
Highway construction
Materials Engineering
Metallic Materials
Mineral Resources
Overburden
Penetration tests
Raw materials
Road construction
Sandstone
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Summary:Mining is a vital global industry, supplying essential raw materials, minerals, and metals. Haul roads are crucial in efficiently transporting large quantities of materials within mining operations. This research focuses on strengthening mine haul roads’ GSB/base layers by introducing geocells as reinforcement. Geocells with single and double pockets were incorporated into California Bearing Ratio (CBR) tests. Samples from two Nagpur open-cast mines served as infill materials alongside a reference sample for conventional comparison. The study found that placing geocells at the upper layer yielded a significantly higher improvement factor ( I f ) in the range of 2–3 compared to middle and lower placements. Double-pocket geocells demonstrated superior CBR values and improvement factors over single-pocket counterparts. Under unsoaked conditions, conventional methods achieved a CBR of 40.26%. In contrast, double-pocket geocells at the top layer achieved remarkable CBR values of 80.39% for sandstone and stone dust (SS + SD) and an impressive 92.27% for basalt and Lameta (B + L). In soaked conditions, conventional methods yielded a CBR of 28.83%, while double-pocket geocells at the top layer delivered compelling results: 37.69% for SS + SD and 51.32% for B + L materials. In conclusion, this study highlights materials from mine overburden, reinforced with geocells, outperforming virgin materials from quarries in soaked and unsoaked conditions. This research contributes to more sustainable and resilient mine haul road construction practices.
ISSN:2524-3462
2524-3470
DOI:10.1007/s42461-024-01090-3