Abstract
In this scientific article was studied the main methods for assessing the seismic effect generated during the blasting operations with explosives, from quarries on essential infrastructure elements, in the analyzed situation - railway tunnel and supporting pillars of the railway superstructure in the adjacent area of the quarry, regarding the most appropriate technique for estimating and assessing the seismic effect through the specificity of the evaluated parameter. In order to be able to carry out an activity with as little impact as possible on the environment, the economic operator carrying out career blasting works must apply technical measures to ensure the protection of civil / industrial objectives in the area close to carrying out these works. The establishment of measures leading to the maintenance of the stability and integrity of the objectives, as well as to the protection of the environment, is based on an artificial earthquake assessment process, which highlights the possible effects on the adjacent area. The evaluation of the seismic effect can be done by monitoring some parameters that characterize the seismic waves produced by quarry blasting such as: frequency of oscillations, amplitude of movement, soil particles oscillations velocity, acceleration of oscillations, duration of their manifestation.
Highlights
Drilling technology with blasting holes drilling and explosive blasting has proven to be a very effective technology for medium, high and very high rocks strenght
Seismic waves generated repeatedly when performing blasting works can lead to irreversible deformations and destruction of geological structures in the area adjacent to the quarry where civil or industrial constructions are carried out, or railway or road infrastructure works considered to be strategic objectives
The paper aims to present the activities carried out to monitor the seismic effects generated by quarry blasting works on essential infrastructure elements, in the analyzed situation - railway tunnel and railway superstructure pillars support in the adjacent quarry area
Summary
Drilling technology with blasting holes drilling and explosive blasting has proven to be a very effective technology for medium, high and very high rocks strenght. The paper aims to present the activities carried out to monitor the seismic effects generated by quarry blasting works on essential infrastructure elements, in the analyzed situation - railway tunnel and railway superstructure pillars support in the adjacent quarry area. In this sense, for the career studied, an assessment of the seismic effect generated by the blasting work is considered, based on engineering measurements and calculations for the assessment of seismicity, in various scenarios involving different places of blasting in the quarry, the total amount of explosive detonated on the delay step and monitoring the effects at the chosen points of importance in the field. 2 Methodology regarding the determination of the seismicity level in the area of influence of the quarries where blasting works are performed and the monitoring equipment used
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
