?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=https%3A%2F%2Frepository.itny.ac.id%2Fid%2Feprint%2F4202%2F&rft.title=ANALISIS+JARAK+LEMPARAN+FLYROCK+UNTUK+MENGURANGI+RADIUS+AMAN+ALAT+PADA+KEGIATAN+PELEDAKAN+DI+PIT+KUSAN+GIRIMULYA+SITE+PT.+BORNEO+INDOBARA+OLEH+PT.+PUTRA+PERKASA+ABADI%2C+KABUPATEN+TANAH+BUMBU%2C%0D%0AKALIMANTAN+SELATAN&rft.creator=Muh.+Reza+Aziz%2C+710018160&rft.subject=TS+Manufactures&rft.description=ABSTRACT%0D%0A%0D%0A%0D%0AThe+safe+radius+standard+that+has+been+implemented+by+Drill+%26+Blast+Engineering+PT.+Putra+Perkasa+Abadi+PT.+Borneo+Indobara+refers+to+KEPMEN+ESDM+Number+1827+K%2F30%2FMEM%2F2018+which+is+300+m+for+alar+and+500+m+for+humans.+However%2C+as+mining+progressed%2C+the+pits+began+to+narrow%2C+coupled+with+a+large+number+of+blasting+sites+spread+across+the+Kusan+Girimulya+Selatan+pit%2C+the+tools+began+to+find+it+difficult+to+evacuate+to+a+safe+radius.+If+in+the+current+conditions+a+reduction+in+the+safe+radius+of+the+tool+is+to+be+carried+out%2C+then+an+analysis+is+needed+regarding+the+flyrock+of+the+blasting+activity%2C+whether+the+safe+radius+can+be+reduced+or+still+refers+to+the+current+regulations.%0D%0AThe+research+was+conducted+by+measuring+the+actual+maximum+throw+distance+of+the+flyrock+in+the+field+and+calculating+the+theoretical+maximum+throw+of+the+flyrock.+Observations+or+data+collection+were+carried+out+25+times+and+the+maximum+throw+of+the+flyrock+was+131.06+m.+This+distance+is+shorter+than+300+m%2C+so+a+trial+or+further+analysis+is+needed+to+reduce+the+safe+radius+of+the+tool+to+200+m.%0D%0ABy+calculating+the+maximum+flyrock+throw+distance+using+the+dimensional+analysis+method+by+Ebrahim+Ghasemi's+theory+by+comparing+the+estimated+flyrock+throw+based+on+the+blasting+geometry+and+the+actual+flyrock+throw%2C+the+percentage+error+is+24%2C5%25+with+an+average+throw+distance+of+70.55+m.+Based+on+the+results+of+the+dimensional+analysis%2C+it+is+estimated+that+the+theoretical+longest+throwing+distance+is+156%2C64+m.+This+indicates+that+the+blasting+geometry+applied+by+PT.+Putra+Perkasa+Abadi+PT.+Borneo+Indobara+is+good+enough%2C+therefore+it+is+concluded+that+the+safe+radius+of+the+blasting+device+at+the+South+Girimulya+Kusan+Pit+can+be+reduced+from+300+m+to+200+m.&rft.publisher=ITNY&rft.date=2023-07-15&rft.type=Other&rft.type=NonPeerReviewed&rft.format=text&rft.language=id&rft.identifier=https%3A%2F%2Frepository.itny.ac.id%2Fid%2Feprint%2F4202%2F1%2FDraft%2520Skripsi_COVER_Muh.%2520Reza%2520Azis_710018160.pdf&rft.format=text&rft.language=id&rft.identifier=https%3A%2F%2Frepository.itny.ac.id%2Fid%2Feprint%2F4202%2F2%2FDraft%2520Skripsi_BAB%25201_Muh.%2520Reza%2520Azis_710018160.pdf&rft.format=text&rft.language=id&rft.identifier=https%3A%2F%2Frepository.itny.ac.id%2Fid%2Feprint%2F4202%2F3%2FDraft%2520Skripsi_BAB%25202_Muh.%2520Reza%2520Azis_710018160.pdf&rft.format=text&rft.language=id&rft.identifier=https%3A%2F%2Frepository.itny.ac.id%2Fid%2Feprint%2F4202%2F4%2FDraft%2520Skripsi_BAB%25203_Muh.%2520Reza%2520Azis_710018160.pdf&rft.format=text&rft.language=id&rft.identifier=https%3A%2F%2Frepository.itny.ac.id%2Fid%2Feprint%2F4202%2F5%2FDraft%2520Skripsi_BAB%25204_Muh.%2520Reza%2520Azis_710018160.pdf&rft.format=text&rft.language=id&rft.identifier=https%3A%2F%2Frepository.itny.ac.id%2Fid%2Feprint%2F4202%2F6%2FDraft%2520Skripsi_BAB%25205_Muh.%2520Reza%2520Azis_710018160.pdf&rft.format=text&rft.language=id&rft.identifier=https%3A%2F%2Frepository.itny.ac.id%2Fid%2Feprint%2F4202%2F7%2FDraft%2520Skripsi_BAB%25206_Muh.%2520Reza%2520Azis_710018160.pdf&rft.format=text&rft.language=id&rft.identifier=https%3A%2F%2Frepository.itny.ac.id%2Fid%2Feprint%2F4202%2F8%2FDraft%2520Skripsi_DAFTAR%2520PUSTAKA_Muh.%2520Reza%2520Azis_710018160.pdf&rft.identifier=++Muh.+Reza+Aziz%2C+710018160++(2023)+ANALISIS+JARAK+LEMPARAN+FLYROCK+UNTUK+MENGURANGI+RADIUS+AMAN+ALAT+PADA+KEGIATAN+PELEDAKAN+DI+PIT+KUSAN+GIRIMULYA+SITE+PT.+BORNEO+INDOBARA+OLEH+PT.+PUTRA+PERKASA+ABADI%2C+KABUPATEN+TANAH+BUMBU%2C+KALIMANTAN+SELATAN.++ITNY%2C+Yogyakarta.++++(Unpublished)++&rft.relation=https%3A%2F%2Frepository.itny.ac.id