Assessment of the Ground Vibration Risk Caused By Blasting Using a Developed FMEA Approach in an Uncertain Environment

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BAKHTAVAR E.; MIKAEIL R.; Savfavi s.m.a.

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Journal: JOURNAL OF ROCK MECHANICS Year:2017 | Volume:1 | Issue:1 Page(s): 43-53

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Title

Assessment of the Ground Vibration Risk Caused By Blasting Using a Developed FMEA Approach in an Uncertain Environment

Author(s)

BAKHTAVAR E. | MIKAEIL R. | Savfavi s.m.a. | Issue Writer Certificate

Keywords

Risk assessment

Management

Blasting

Ground vibration

Fuzzy FMEA

Sungun mine

Abstract

Summary An approach based on the failure modes and event analysis (FMEA) was developed considering a three-member team of Blasting experts in order to assess the Ground vibration risk resulted from Blasting. Fourteen states of occurrence were considered focusing the impacts of Ground vibration on the infrastructures and structures of Sungun mine. Through statistical analysis, a relation was provided to determine the minimum vulnerable distance from a blast source. After presenting the qualitative and fuzzy number ratings of the risk factors, the fuzzy number of each 14 states was determined together with the fuzzy weights of each factor according to the ideas of experts. The fuzzy risk priority numbers of the states were calculated considering the geometric mean of the fuzzy weights. Results indicated that the states C-4 (industrial site), F-9 (gas station), and G-10 (treatment site) have high risk values. Crusher (A-1) and explosive storage (I-13) both had less than an average risk and the other states included negligible risk. Introduction Ground vibration as one of the undesirable consequences of Blasting can impose numerous risks to open pit walls, infrastructures, and structures within or around a mine. Considering the specific conditions of Sungun mine, this problem is very sensitive. The main purpose of this research is to develop an approach in an uncertain environment based on the failure modes and effect analysis (FMEA) for particularly assessing the Ground vibration risks caused by Blasting. Methodology and Approaches Fourteen cases including the infrastructures and structures sites, which were under the Ground vibration risks, were considered. The location of the sites was indicated on the map of Sungun area. Blasting data were statistically analyzed using SPSS software, in order to obtain a relation for determining the minimum vulnerable distance from a blast. The main process of the Ground vibration Risk assessment was made using the FMEA approach, which was developed by presenting the qualitative and fuzzy number ratings of the related risk factors and also by considering the fuzzy weights of each risk factor according to the ideas of an expert team. Results and Conclusions Results indicated that only the industrial site, gas station, treatment site, and almost crusher had considerable Ground vibration risk; hence, they should be essentially managed in order to decrease their risk levels by employing the available solutions. Because of a long distance from the blast sources, other sites had negligible risk.

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APA: Copy

BAKHTAVAR, E., MIKAEIL, R., & Savfavi, s.m.a.. (2017). Assessment of the Ground Vibration Risk Caused By Blasting Using a Developed FMEA Approach in an Uncertain Environment. JOURNAL OF ROCK MECHANICS, 1(1 ), 43-53. SID. https://sid.ir/paper/268306/en

Vancouver: Copy

BAKHTAVAR E., MIKAEIL R., Savfavi s.m.a.. Assessment of the Ground Vibration Risk Caused By Blasting Using a Developed FMEA Approach in an Uncertain Environment. JOURNAL OF ROCK MECHANICS[Internet]. 2017;1(1 ):43-53. Available from: https://sid.ir/paper/268306/en

IEEE: Copy

E. BAKHTAVAR, R. MIKAEIL, and s.m.a. Savfavi, “Assessment of the Ground Vibration Risk Caused By Blasting Using a Developed FMEA Approach in an Uncertain Environment,” JOURNAL OF ROCK MECHANICS, vol. 1, no. 1 , pp. 43–53, 2017, [Online]. Available: https://sid.ir/paper/268306/en

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