A Study on the Correlativity and Date Simulation between Rock Abrastivity and Physical and Mechanical Indexes of Rock in Qingdao Subway, China

Abstract:

The attrition rate of a TBM cutter connects with the economic benefits of the TBM application and digging efficiency. The main influence factor of the attrition rate of the TBM cutter is rock abrastivity. The rock abrastivity is in contact with the physical and mechanical indexes of rock and rock attributes. The relationship between the rock abrastivity and the physical and mechanical indexes of rock is studied by experiments and mathematical statistics. The experimental samples are collected in the Qingdao subway tunnel and done rock mechanics room experimentation and rock abrastivity experimentation separately in the lab Based on calculation and analyses of the test data. We obtain a mathematic model describing the relationship between rock abrastivity and physical and mechanical indexes of rock and summarize and interpret the correlativity between them.

• Periodical: Advanced Materials Research (Volumes 476-478)
• Pages: 1718-1721
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.476-478.1718
• Online since: February 2012
• Authors: De Hong Jiang, Li Ming Bian
• Keywords: Correlativity, Physical and Mechanical Indexes of Rock, Rock Abrastivity, TBM

References

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