A PRACTICAL APPROACH TO THE GROUND OSCILLATION VELOCITY MEASUREMENT METHOD
Journal Title: UNKNOWN - Year 2017, Vol 32, Issue 4
Abstract
The use of an explosive’s energy during blasting includes undesired effects on the environment. The seismic influence of a blast, as a major undesired effect, is determined by many national standards, recommendations and calculations where the main parameter is ground oscillation velocity at the field measurement location. There are a few approaches and methods for calculation of expected ground oscillation velocities according to charge weight per delay and the distance from the blast to the point of interest. Utilizations of these methods and formulas do not provide satisfactory results, thus the measured values on diverse distance from the blast field more or less differ from values given by previous calculations. Since blasting works are executed in diverse geological conditions, the aim of this research is the development of a practical and reliable approach which will give a different model for each construction site where blasting works have been or will be executed. The approach is based on a greater number of measuring points in line from the blast field at predetermined distances. This new approach has been compared with other generally used methods and formulas through the use of measurements taken during research along with measurements from several previously executed projects. The results confirmed that the suggested model gives more accurate values.
Authors and Affiliations
Siniša Stanković, Mario Dobrilović, Vječislav Bohanek
NEKI VIDOVI SLIČNOSTI U TEHNOLOGIJAMA RUDARENJA MINERALNIH SIROVINA
Ponekad je u rudarstvu nužno uporabiti različite tehnologije pridobivanja i ekstrakcije u istome rudniku. Zbog toga su analizirani različiti znanstveni i tehnički vidovi rudarskih operacija te tehnologija rudarenja, pogl...
UČINKOVITOST SEPARIRANJA METALNOG OTPADA U MAGNETSKOM SEPARATORU S VRTLOŽNIM STRUJAMA
Magnetska separacija s vrtložnim strujama najčešće se koristi za izdvajanje nemagnetičnih metala (Al, Cu, Zn, Pb) iz krutog otpada, a također i za njihovo međusobno odvajanje. Tračni transporter doprema ulazni materijal...
Inženjerskogeološke i geotehničke značajke obilaznice Ploča.
Obilaznica Ploča bit će izvedena dijelom na vapnencima, a dijelom na glinovito-prašinasto-pjeskovitim sedimentima. S ciljem postizanja pouzdanih rezultata za sigurno temeljenje prometnice i izvedbu objekata na njoj, obav...
DETECTION OF AN AIRPLANE BOMB BY GEOMAGNETIC TESTING OF THE »REDVIT« BUILDING IN SLAVONSKI BROD
An old abandoned building was examined in order to perform a restoration project. Due to the presence of a round opening in the roof and the fact that Slavonski Brod was heavely bombed in the last war, it was assumed tha...
TENDENCIJA PRIMJENE ELEKTRIČNE UTOVARNO-TRANSPORTNO-ISTOVARNE MEHANIZACIJE U PODZEMNIM PROSTORIJAMA RUDNIKA
Promijenjeni uvjeti rada u dubokim podzemnim prostorijama rudnika primjenom mehanizacije na dizelski pogon pridonijeli su tendenciji uvođenja električnih utovarno-transportno-istovarnih (Load-Haulage-Dump) strojeva u rud...