Safety of engineered structures against blast vibrations: A case study

Tripathy, Gyana Ranjan; Shirke, R.R.; Kudale, M.D.

doi:10.1016/j.jrmge.2015.10.007

Cited by 48 publications

(37 citation statements)

References 7 publications

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“…This research was carried out by the Poltegor Opencast Mining Institute. It has allowed to calculate the maximum specific charge (6), the predicted charge (4) and the charge calculated on the basis of the values of vibration velocity (5). Specific charge allows for the comparative seismic analysis (7) for selected blasting configurations differing in the volume of the charge Q and the distance of the measuring point from the vibration epicentre.…”

Section: Seismic Analysismentioning

confidence: 99%

“…The vibrations induced by blasting operations in opencast mining have been analyzed in a number of research works [3][4][5][6]. The results of measurements and observations have proved, that some factors may affect their intensity, including the distance from the blasting site, geological structure of the rock mass, the amount of explosives used and applied delays.…”

Section: Introductionmentioning

confidence: 99%

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The influence of drilling process automation on improvement of blasting works quality in open pit mining

Bodlak

Dmytryk²,

Mertuszka

et al. 2018

E3S Web Conf.

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Abstract. The article describes the monitoring system of blasthole drilling process called HNS (Hole Navigation System), which was used in blasting works performed by Maxam Poland Ltd. Developed by Atlas Copco's, the HNS system -using satellite data -allows for a very accurate mapping of the designed grid of blastholes. The article presents the results of several conducted measurements of ground vibrations triggered by blasting, designed and performed using traditional technology and using the HNS system and shows first observations in this matter.

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Section: Seismic Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The influence of drilling process automation on improvement of blasting works quality in open pit mining

Bodlak

Dmytryk²,

Mertuszka

et al. 2018

E3S Web Conf.

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show abstract

“…Blast-induced vibrations are usually characterized by two important parameters, peak particle velocity (PPV) and blast predominate frequency (f ) [10,11]. Researchers have shown that the failure of the inner structures of rock masses is caused by stress waves whose PPV value depends on the dynamic stress and strain of the rock mass [12,13].…”

Section: Introductionmentioning

confidence: 99%

“…In evaluating the safety of the blast vibration of shotcrete, PPV and dominant frequency should be considered simultaneously. Different countries have different criteria for blast vibration to protect fresh concrete [6,11]. By comparing with allowed values of PPV, security status can be evaluated and the safety distance of shotcrete can be determined.…”

Section: Introductionmentioning

confidence: 99%

Safety Distance of Shotcrete Subjected to Blasting Vibration in Large‐Span High‐Speed Railway Tunnels

Zhang

Fang

et al. 2019

Shock and Vibration

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e drill and blast method is widely used in constructing tunnels in rock. Unfortunately, blasting vibration can damage newly performed shotcrete layers which are major support structures to stabilize surrounding structures. erefore, investigation of the influence of blasting on shotcrete and determining reasonable distance between blasting work face and shotcrete position is of great importance. In this paper, a large-span tunnel excavated by drill and blast method acting as a high-speed railway station has been investigated. Blast vibration in the tunnel was recorded using microseismic monitoring technique. Empirical prediction equations for peak particle velocity (PPV) were obtained through regression analysis based on the obtained monitoring data. e attenuation law of tensile stress imposed on shotcrete layer due to blasting and bond strength of shotcrete-rock interface was also investigated. Minimum safety distance between shotcrete and blasting positions was calculated based on bond failure criterion. Evolution law considering different factors including blasting charge, rock mass class, and setting time of shotcrete was also obtained, which could be applied to determine blast charge shotcrete arrangements for tunnel constructions in future. e obtained results showed that the safety of shotcrete could be ensured and shotcrete falling off the rock could be prevented under current blast constructions.

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“…[1][2][3][4][5] El software elegido para la simulación de los resultados de la voladura ha sido utilizado también por diversos autores en varios trabajos. [6][7] En la cantera elegida se han llevado a cabo previamente otros estudios para modelizar algunos parámetros en otro tipo de voladuras.…”

Section: Introductionunclassified

Simulación y evaluación de una voladura de producción en una cantera mediante análisis con el software JKSimBlast, perfilometría láser 2D y sismógrafos.

Medina

Romo

2017

RCTU-UPSE

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En la cantera de árido de estudio se extrae roca caliza para su explotación como material de construcción. La función principal de las voladuras de producción es obtener mediante el uso de explosivos civiles, un tamaño de bloque adecuado para la planta de trituración, conseguir un frente de talud estable, bien marcado y rectilíneo para garantizar la estabilidad de la explotación y minimizar las vibraciones en las estructuras y zonas de interés circundantes. Para ello se define una voladura tipo en la que se simulan y evalúan los principales parámetros de diseño mediante el uso del software JKSimBlast, un perfilómetro 2D y dos sismógrafos, buscando conciliar una producción óptima con un nivel mínimo de vibraciones en las zonas a monitorear. AbstractAt the studied quarry, limestone is extracted for its exploitation as construction material. The main functions of production blasts are to obtain, by using civil explosives, a suitable block size for the crushing plant, to achieve a stable, well-marked and rectilinear slope, to guarantee the stability of the operation and to minimize the vibrations in the surrounding structures and areas of interest. For this, a type blast is defined in which the main design parameters are simulated and evaluated using JKSimBlast software, a 2D profiler and two seismographs, seeking to reconcile optimal production with a minimum level of vibration in the areas to be monitored.

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Safety of engineered structures against blast vibrations: A case study

Cited by 48 publications

References 7 publications

The influence of drilling process automation on improvement of blasting works quality in open pit mining

The influence of drilling process automation on improvement of blasting works quality in open pit mining

Safety Distance of Shotcrete Subjected to Blasting Vibration in Large‐Span High‐Speed Railway Tunnels

Simulación y evaluación de una voladura de producción en una cantera mediante análisis con el software JKSimBlast, perfilometría láser 2D y sismógrafos.

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