Prediction of Vibration Velocity of Bench Blasting Reflecting Negative Elevation Effect

Prediction of Vibration Velocity of Bench Blasting Reflecting Negative Elevation Effect

In the field of mine blasting practice, accurate prediction of blasting vibration is considered as a critical task. In accordance with the theory of elastic wave, the reflection of blasting vibration wave at the interface of negative elevation is analyzed in this paper. The negative elevation effect...

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Main Authors: Xiaojun Zhang, Jianjun Shi
Format: Article
Language:English
Published: Hindawi-Wiley 2021-01-01
Series:Geofluids
Online Access:http://dx.doi.org/10.1155/2021/6662809
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spelling doaj-3c8c54f34163405c855f18600242e0cd2021-02-15T12:52:49ZengHindawi-WileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/66628096662809Prediction of Vibration Velocity of Bench Blasting Reflecting Negative Elevation EffectXiaojun Zhang0Jianjun Shi1Beijing Key Laboratory of Urban Underground Space Engineering, School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaBeijing Key Laboratory of Urban Underground Space Engineering, School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaIn the field of mine blasting practice, accurate prediction of blasting vibration is considered as a critical task. In accordance with the theory of elastic wave, the reflection of blasting vibration wave at the interface of negative elevation is analyzed in this paper. The negative elevation effect exerted by blasting vibration is interpreted considering the mechanism, and the formula of the blasting vibration prediction step (negative) V=KQ1/3/Rα⋅1/Hβ is derived, reflecting the negative elevation effect. Besides, the formula accuracy is verified by the measured vibration velocity of the mass in the Jinou coal mine. The step (negative) formula acts as a more feasible candidate for the prediction of step blasting vibration.http://dx.doi.org/10.1155/2021/6662809
collection DOAJ
language English
format Article
sources DOAJ
author Xiaojun Zhang
Jianjun Shi
spellingShingle Xiaojun Zhang
Jianjun Shi
Prediction of Vibration Velocity of Bench Blasting Reflecting Negative Elevation Effect
Geofluids
author_facet Xiaojun Zhang
Jianjun Shi
author_sort Xiaojun Zhang
title Prediction of Vibration Velocity of Bench Blasting Reflecting Negative Elevation Effect
title_short Prediction of Vibration Velocity of Bench Blasting Reflecting Negative Elevation Effect
title_full Prediction of Vibration Velocity of Bench Blasting Reflecting Negative Elevation Effect
title_fullStr Prediction of Vibration Velocity of Bench Blasting Reflecting Negative Elevation Effect
title_full_unstemmed Prediction of Vibration Velocity of Bench Blasting Reflecting Negative Elevation Effect
title_sort prediction of vibration velocity of bench blasting reflecting negative elevation effect
publisher Hindawi-Wiley
series Geofluids
issn 1468-8115
1468-8123
publishDate 2021-01-01
description In the field of mine blasting practice, accurate prediction of blasting vibration is considered as a critical task. In accordance with the theory of elastic wave, the reflection of blasting vibration wave at the interface of negative elevation is analyzed in this paper. The negative elevation effect exerted by blasting vibration is interpreted considering the mechanism, and the formula of the blasting vibration prediction step (negative) V=KQ1/3/Rα⋅1/Hβ is derived, reflecting the negative elevation effect. Besides, the formula accuracy is verified by the measured vibration velocity of the mass in the Jinou coal mine. The step (negative) formula acts as a more feasible candidate for the prediction of step blasting vibration.
url http://dx.doi.org/10.1155/2021/6662809
work_keys_str_mv AT xiaojunzhang predictionofvibrationvelocityofbenchblastingreflectingnegativeelevationeffect
AT jianjunshi predictionofvibrationvelocityofbenchblastingreflectingnegativeelevationeffect
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