Utilizing The Uncertainty Matrix In Estimation Of Rock Mass Deformation Modulus On The Basis Of Emprical Relation

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MOHAMMADI MEHDI

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Paper Information

Journal: IRANIAN JOURNAL OF MINING ENGINEERING (IRJME) Year:2018 | Volume:13 | Issue:40 Page(s): 1-12

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Title

Utilizing The Uncertainty Matrix In Estimation Of Rock Mass Deformation Modulus On The Basis Of Emprical Relation

Author(s)

MOHAMMADI MEHDI | Issue Writer Certificate

Keywords

Uncertainty matrixQ1

Deformation modulusQ1

Sandstone Kahar formationQ1

empirical modelsQ1

Student’s T distributionQ1

Abstract

Uncertainty in parameters required for analysis and design of structures is an important issue that is usually considered by rock engineers, which is caused by the developed equations and also the nature of rocks. Modulus of deformation is one of the geo-mechanical parameters widely utilized in design and analysis. But estimating this parameter using empirical models is associated with uncertainty and this causes mistakes in engineering decision making process. The purpose of this study is to develop a novel concept entitled Uncertainty matrix for practical prediction of Deformation modulus with high level of certainty. Therefore, modulus of deformation is obtained based on the Uncertainty matrix and statistical methods. Later, using the Uncertainty matrix and t distribution, the range for variation of Deformation modulus is determined. As a case study and also for defining the elements of uncertainly matrix, models that are just functions of Rock Mass Rating (RMR) were used and data sets of sand-stone slopes in Kahar formation were applied. Results indicate that prediction of Deformation modulus for rock mass using the developed method is more reliable in comparison with general methods. In addition, Deformation modulus for the studied sand-slope is in the range of 23. 67

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APA: Copy

MOHAMMADI, MEHDI. (2018). Utilizing The Uncertainty Matrix In Estimation Of Rock Mass Deformation Modulus On The Basis Of Emprical Relation. IRANIAN JOURNAL OF MINING ENGINEERING (IRJME), 13(40 ), 1-12. SID. https://sid.ir/paper/117033/en

Vancouver: Copy

MOHAMMADI MEHDI. Utilizing The Uncertainty Matrix In Estimation Of Rock Mass Deformation Modulus On The Basis Of Emprical Relation. IRANIAN JOURNAL OF MINING ENGINEERING (IRJME)[Internet]. 2018;13(40 ):1-12. Available from: https://sid.ir/paper/117033/en

IEEE: Copy

MEHDI MOHAMMADI, “Utilizing The Uncertainty Matrix In Estimation Of Rock Mass Deformation Modulus On The Basis Of Emprical Relation,” IRANIAN JOURNAL OF MINING ENGINEERING (IRJME), vol. 13, no. 40 , pp. 1–12, 2018, [Online]. Available: https://sid.ir/paper/117033/en

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