ESTIMATION OF TBM UTILIZATION BASED ON ROCK MASS CLASSIFICATION INDEXES AND DISC THRUST

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AHMADI MORTEZA; NEJATI H.R.

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Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF MINING ENGINEERING (IRJME) Year:2011 | Volume:5 | Issue:10 Page(s): 65-71

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Information Journal Paper

Title

ESTIMATION OF TBM UTILIZATION BASED ON ROCK MASS CLASSIFICATION INDEXES AND DISC THRUST

Author(s)

AHMADI MORTEZA | NEJATI H.R. | Issue Writer Certificate

Keywords

UTILIZATION FACTORQ3

OPEN TBMQ3

STATISTICAL ANALYSISQ3

ROCK MASS CLASSIFICATIONQ3

DISC THRUSTQ3

Abstract

Determination of bid prices for hard rock TBM drives needs to estimation of tunneling machine advance rate. On the other hand determination of machine advance rate requires to estimation of machine utilization. This paper propose an equation for estimation of OPEN TBM utilization based on ROCK MASS CLASSIFICATION system (Q & RMR) and DISC THRUST of TBM machine. For this purpose Pearson test is used for evaluation of correlation between utilization, RMR, Q, DISC THRUST, MQ (Modified Q), NRMR (None modified RMR). Whereas stability status of tunnel affect on the UTILIZATION FACTOR, ROCK MASS CLASSIFICATION indexes have a significant relationship with the machine utilization. Statistical analyses show that there is significant relationship between MQ (Modified Q), NRMR (None modified RMR) and UTILIZATION FACTOR. Ultimately the best equation is offered for estimation of UTILIZATION FACTOR.

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References

PREDICTION OF HARD ROCK TBM PENETRATION RATE WITH NTH MODEL (CASE STUDY GHOMRUD CONVEYANCE TUNNEL)

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APA: Copy

AHMADI, MORTEZA, & NEJATI, H.R.. (2011). ESTIMATION OF TBM UTILIZATION BASED ON ROCK MASS CLASSIFICATION INDEXES AND DISC THRUST. IRANIAN JOURNAL OF MINING ENGINEERING (IRJME), 5(10), 65-71. SID. https://sid.ir/paper/117139/en

Vancouver: Copy

AHMADI MORTEZA, NEJATI H.R.. ESTIMATION OF TBM UTILIZATION BASED ON ROCK MASS CLASSIFICATION INDEXES AND DISC THRUST. IRANIAN JOURNAL OF MINING ENGINEERING (IRJME)[Internet]. 2011;5(10):65-71. Available from: https://sid.ir/paper/117139/en

IEEE: Copy

MORTEZA AHMADI, and H.R. NEJATI, “ESTIMATION OF TBM UTILIZATION BASED ON ROCK MASS CLASSIFICATION INDEXES AND DISC THRUST,” IRANIAN JOURNAL OF MINING ENGINEERING (IRJME), vol. 5, no. 10, pp. 65–71, 2011, [Online]. Available: https://sid.ir/paper/117139/en

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