estimation of blast induced vibration in underground structures by anns
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منابع مشابه
Effects of Blast Vibration on Unplanned Dilution in an Underground Metal Mine
One of the factors affecting overbreak or slough of the roof and walls of underground stopes, causing unplanned dilution is blast vibration. The amount of damage caused by earth vibration can be measured in terms of peak particle velocity (PPV). In this study, in order to investigate the effects of blast vibration on the occurrence of unplanned dilution, 72 three-component records acquired upon...
متن کاملSignificance of Soil Compaction on Blast Resistant Behavior of Underground Structures: A Parametric Study
Dynamic response of underground structures has always been a topic of concern for designers and researchers. The behavior of these complicated systems under blast loading is affected by various factors and parametric studies are required to investigate their significance. The importance of soil density around the underground structure through which, the waves of explosion of a penetrator bomb i...
متن کاملVibration Generated by Underground Railway Trains
The control of vibration generated by railways in tunnels is complicated by the dynamic interaction between tunnel and track. Conventional methods (floating slab track, ballast mats, under-sleeper pads) do not perform as well as might be expected and it is the purpose of this paper to explore the sources of error. The major factors which must be taken into account pertain to the three-dimension...
متن کاملAppropriate Loading Techniques in Finite Element Analysis of Underground Structures
Stability of underground structures is assessed by comparing rock strength with induced stresses resulted from ground stresses. Rock mass surrounding the opening may fail either by fracture or excessive deformation caused. Accurate calculation of induced stresses is therefore fundamental in the stability analysis of an opening. Although numerical methods, particularly finite element method, are...
متن کاملsignificance of soil compaction on blast resistant behavior of underground structures: a parametric study
dynamic response of underground structures has always been a topic of concern for designers and researchers. the behavior of these complicated systems under blast loading is affected by various factors and parametric studies are required to investigate their significance. the importance of soil density around the underground structure through which, the waves of explosion of a penetrator bomb i...
متن کاملBlast vibration modeling using linear superposition method
A linear superposition method was used for modeling the time history of the production blast vibrations and optimizing the blast sequence to reduce vibration levels in Sar-Cheshmeh copper mine, Kerman, Iran. A single-hole blast for modeling and two double-hole blasts with time delays of 25 and 65 ms between two holes for modeling validation were carried out. The generated vibrations were measur...
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عنوان ژورنال:
نشریه دانشکده فنیجلد ۴۲، شماره ۵، صفحات ۰-۰
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