1 PURPOSE
The purpose of this procedure is to provide a mechanism to perform shothole preloading to ensure its continuing suitability and controlled.
2 SCOPE
The scope of this process covers all aspects with shothole preloading operation, including prepares dynamite bunch, loading, detonator test and closing hole.
3 INTERFACE DOCUMENTS
Interface documents are defined as MS documents that have direct links; either by reference, input or output. Interface documents with this Management Procedure are:
3.1 Level 1 – Management Manual Interfaces
- MM.001 Management Manual
- MM.002 QHSE Policy
3.2 Level 2 – Standard Operation Procedure interfaces
- SOP.SMC.031 Shothole Drilling Operation
- SOP.SMC.033 Shothole drilling & preloading field work
3.3 Level 3 – Form. record & WI interfaces
- FM.SMC Preloading daily report
- FM.SMC Explosive daily report
- FM.IMS.OO4 Document retention and archive periods
4 PROCEDURE
4.1 Method
- Each crew must have a licensed shooter at all time. He, the licensed shooter is fully responsible for all preloading safe procedures.
Setiap kru preloading harus ada seorang shooter yang punya lisensi. Dia yang bertanggung jawab penuh mengenai prosedur pengisian yang aman.
- The preloading crew supervised by the shooter when possible will screw the charges together and tape them together using the masking tape. This will take place well away from other crew members and the detonators. Never store explosives and detonators together. There must be a distance of 30 meters at all times between the two.
Pada saat kru preloading merangkai dinamit dan dibalutnya dengan masking tape, mereka akan dipimpin oleh shooter. Hal ini harus dilakukan jauh dari anggota kru lainya dan juga detonator. Tidak boleh menyimpan dinamit dan detonator dalam satu tempat. Harus selalu ada jarak kira – kira 30 meter antara keduanya.
- The shooter will first check that the area is cleared of equipment and people.
Shooter akan mengecek terlebih dahulu bahwa area tersebut sudah aman dari peralatan dan orang.
- When the area is safe the shooter will blow his whistle to indicate the area is safe and the preloading crew is about to load a shothole.
Jika area sudah aman, shooter akan meniup peluitnya pertanda area sudah aman dan kru preloading bersiap – siap disekitar pengisian lubang tembak.
- The preloading crew at this stage will then check the shothole using the dummy load after checking the preloading loading poll team will then move away from the hole some ten meters. The shooter will remain at the shothole.
Kemudian kru preloading akan mengecek lubang tembak dengan dummy load dan setelah itu tim loading pol ini akan menjauh kira – kira 10 meter dari lokasi tersebut. Shooter akan tetap tinggal di lokasi lubang tersebut.
- The shooter will then call for the detonator to be brought to the shothole. He will first check that the ends of the detonator wires are joined together. The shooter will then attach the detonator to the main charge. The speedy loader will then be taped to the main charge using masking tape. At this point the plastic string (raffia) will be half hitched up the charge with a half hitch for each individual charge. Do not half hitch the speedy loader.
Shooter kemudian memanggil orang yang menyiapkan detonator untuk mendekat ke posisi lubang. Dia harus mengecek apakah kedua ujung kabel detonator sudah di gabung. Setelah itu shooter merangkai detonator dengan dinamit tersebut. Kemudian di pasang speedy loader dan dibalut dengan masking tape. Setelah itu dinamit diikat dengan tali plastik (raffia) di setiap kedua pertengahan agak ujung dari setiap satuannya dalam rangkaian tersebut. Speedy loader tidak usah di ikat.
- The charge will then be lowered down into the top of the open shothole. The loading poll team will then be called to the hole with the loading polls.
Kemudian rangkaian dynamite tersebut dimasukkan kedalam permukaan lubang. Setelah itu tim loading pol dipanggil dengan membawa loading polnya.
- The people around the hole as it being loaded will only be from the preloading crew and they will be made up of the following, the shooter, the detonator man, the plastic string man, and two loading poll men total five men.
Orang – orang yang berada di sekitar tempat pengisian adalah dari kru preloading saja yang terdiri dari, shooter, bagian detonator, bagian tali plastik, dan dua orang bagian loading pol, total 5 orang.
- All shothole must be loaded to the instructed hole depth. Any stuck charges must be re-drilled.
Semua lubang bor harus diisi sesuai dengan instruksi kedalamnya. Ika ada lubang yang stuk / sangkut harus dibor ulang.
- Any broken cap wires, dead caps, stuck charges must be reported whith the afternoon’s radio report. All holes with the above problems must be re-drilled.
Jika ada kabel yang rusak, mati deto, stuk/sangkut harus dilaporkan pada saat laporan radio sore hari. Semua lubang yang ada masalah seperti diatas harus dibor ulang.
- After the charge has been loaded the loading polls will be retrieved from the hole only after this takes place will the detonator be tested. Moving the men away from the hole first.
Setelah pengisian dinamit selesai, loading pol di cabut dari lubang, kemudian detonator di tes dengan menggunakan cap tester. Jauhkan orang-orang dari lubang terlebih dahulu.
- All completed holes will be fully tamped using the tamping tool.
Semua lubang yang selesai diisi harus di tamping dengan menggunakan alat tamping.
- After the hole has been fully tamped the detonator will be checked again for the second time. All detonators will be checked two times. One after loading and again after tamping. Must be checked two times.
Setelah lubang selesai ditamping detonator dicek kembali yang kedua kalinya. Semua detonator harus dicek dua kali. Sekali setelah pengisian dan sekali lagi setelah tamping. Harus dicek dua kali.
- Leave 1.5 meters of slack detonator cable down the shothole after loading. This slack wire is required for any charge or tamping soil movement.
Kendurkan kabel detonator 1.5 meter kebawah setelah selesai pengisian. Kenduran kabel tersebut untuk menjaga jika ada pengisian atau tanah tamping yang bergerak.
- The holes will have the bamboo tripod placed over the hole to mark the shothole drilled.
Lubang – lubang yang sudah dibor akan diberi tanda patok segitiga dari bambu.
- Here are some other important subject that must be followed
· Do not put any weight on the detonator wire when loading, let the wire run freely.
· Do not stand directly over the shothole when loading, keep to the side of the hole.
· Don not strike or hammer the charge down the shothole with the loading poll apply constant pressure to the loading polls only.
· Do not load or handle any explosives during electrical storm. Store in a safe place and wait until the storm has passed.
Dibawah ini adalah beberapa hal penting yang harus diikuti.
· Jangan menarik kabel detonator terlalu kencang, biarkan kabel berputar turun dalam keadaan normal.
· Jangan berdiri persis diatas lubang saat pengisian, ambil posisi disekitar lubang.
· Jangan memukul atau menghentakkan loading poll saat mengisi dinamit kedalam lubang, tekan loading poll dengan dorongan normal yang stabil.
· Jangan melakukan pengisian atau membawa explosive disaat ada kilat/petir. Simpan ditempat yang aman dan tunggu sampai tidak ada kilat/petir.
4.2 RECORDS
The retention and archive periods for records is defined in FM.IMS.004 (Document Retention & Archive Periods).
