The information contained in this document is for general information purposes only. The information is provided by O-Pitblast © and while we endeavor to keep the information up to date and correct, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the document or the information, products, services, or related graphics contained on the document for any purpose. Any reliance you place on such information is therefore strictly at your own risk. Technical Data Sheet O-Pitblast © | Porto | Portugal Technical Support O-Pitblast © : - [email protected] - www.o-pitblast.com - +351 224 096 803 O-Pitblast ® - Vibration Analysis Description Vibration is directly linked to blasting. There is the need to be extra careful when performing a blast that can affect sensitive structures, by controlling all the parameters that affect vibration, so that the generated vibration does not reach the limits imposed by the legislation. Vibration is determined by the quantity of explosives used in a single blast, by the direction and size of the blast and the distance of the blast to structures of interest. Vibration Control O-Pitblast © provides vibration control service in each blast. The service consists in the installation of seismographs and in the registration of: • Peak Particle Velocity (mm/s) • Air Wave (Pa) • Noise level (dB) • Official report with the registered values Fig. 1 - Seismograph Vibration Analysis The terrain attenuation laws must be determined so that the maximum quantity of explosive required to perform a blast in each delay is known. These laws define the level of difficulty or easiness with which a particular terrain needs in order to attenuate the effects generated by vibration. Fig. 2 - PPV's Isolines. Notification of potential damages O-Pitblast © has the know-how and the necessary tools for the determination of attenuations laws of any terrain. This valuable information allows prediction of the vibration that each blast will generate and subsequently redesign the blast in order to avoid possible damages. Fig. 3 – Attenuation laws (50% and 95%)

TDS - Vibration - O-Pitblast

Download PDF Report

Upload
flinio-roger-solano-reyes
View
7
Download
2

Embed Size (px)

DESCRIPTION

MANUAL

Citation preview

Technical Data Sheet

O-Pitblast© | Porto | Portugal

Technical Support O-Pitblast©:

- [email protected] - www.o-pitblast.com - +351 224 096 803

O-Pitblast® - Vibration Analysis

Description Vibration is directly linked to blasting. There is the need to be extra careful when performing a blast that can affect sensitive structures, by controlling all the parameters that affect vibration, so that the generated vibration does not reach the limits imposed by the legislation. Vibration is determined by the quantity of explosives used in a single blast, by the direction and size of the blast and the distance of the blast to structures of interest.

Vibration Control O-Pitblast © provides vibration control service in each blast. The service consists in the installation of seismographs and in the registration of:

• Peak Particle Velocity (mm/s) • Air Wave (Pa) • Noise level (dB) • Official report with the registered values

Fig. 1 - Seismograph

Vibration Analysis The terrain attenuation laws must be determined so that the maximum quantity of explosive required to perform a blast in each delay is known. These laws define the level of difficulty or easiness with which a particular terrain needs in order to attenuate the effects generated by vibration.

Fig. 2 - PPV's Isolines. Notification of potential damages

O-Pitblast© has the know-how and the necessary tools for the determination of attenuations laws of any terrain. This valuable information allows prediction of the vibration that each blast will generate and subsequently redesign the blast in order to avoid possible damages.

Fig. 3 – Attenuation laws (50% and 95%)