Experimental And Numerical Simulation Of The Effect Of Nonpersistent Joint On The Failure Pattern And Failure Load Of Samples

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Sarfarazi Vahab; Ghafari Mohammad; Haeri Hadi

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Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF MINING ENGINEERING (IRJME) Year:2019 | Volume:13 | Issue:41 Page(s): 45-55

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Title

Experimental And Numerical Simulation Of The Effect Of Nonpersistent Joint On The Failure Pattern And Failure Load Of Samples

Author(s)

Sarfarazi Vahab | Ghafari Mohammad | Haeri Hadi | Issue Writer Certificate

Keywords

non-persistent jointsQ1

crack growthQ1

rock bridgeQ1

uniaxial testingQ1

Abstract

Investigation of behaviour of non-persistent joint is important in rock structure stability. This leads to improvement in rock engineering project design. rock bridges in non-persistent joint increase shear strength of failure surface. For investigation of shear behaviour of rock bridges, 24 gypsum samples with dimension of 10 cm × 10 cm × 5 cm were prepared. The joint lengths in various samples are different but in the one sample the joint length are similar. Joint lengths change from 1 cm to 4 cm. in each joint length, joint angularity was 0, 15, 30, 45, 60, 75 degrees. These samples were under uniaxial compression test. The results show that failure pattern was affected by joint length, joint angularity and rock bridge length while failure load was controlled by failure pattern. Concurrent with experimental test, numerical simulation was performed using PFC2D software. The joint lengths in numerical model change from 1cm to 4 cm with increment of 1cm. In each joint length, the joint angularity is 0° and 45° . Failure pattern in numerical model was similar to experimental sample while failure load in numerical model was more than experimental outputs.

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APA: Copy

Sarfarazi, Vahab, Ghafari, Mohammad, & Haeri, Hadi. (2019). Experimental And Numerical Simulation Of The Effect Of Nonpersistent Joint On The Failure Pattern And Failure Load Of Samples. IRANIAN JOURNAL OF MINING ENGINEERING (IRJME), 13(41 ), 45-55. SID. https://sid.ir/paper/117061/en

Vancouver: Copy

Sarfarazi Vahab, Ghafari Mohammad, Haeri Hadi. Experimental And Numerical Simulation Of The Effect Of Nonpersistent Joint On The Failure Pattern And Failure Load Of Samples. IRANIAN JOURNAL OF MINING ENGINEERING (IRJME)[Internet]. 2019;13(41 ):45-55. Available from: https://sid.ir/paper/117061/en

IEEE: Copy

Vahab Sarfarazi, Mohammad Ghafari, and Hadi Haeri, “Experimental And Numerical Simulation Of The Effect Of Nonpersistent Joint On The Failure Pattern And Failure Load Of Samples,” IRANIAN JOURNAL OF MINING ENGINEERING (IRJME), vol. 13, no. 41 , pp. 45–55, 2019, [Online]. Available: https://sid.ir/paper/117061/en

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