Ndeipi midziyo inofanirwa kushandiswa pakuchera mune yakasimba weathered geology

Ndeipi midziyo inofanirwa kushandiswa pakuchera mune yakasimba weathered geology

1. Chigadziro chekuchera chakagadzirirwa ne friction kana kupindira kelly bar, iyo inogona kusangana nedhayamita yemurwi uye urefu hwemurwi.

2. Kelly Bar: sarudza rudzi rwepombi yekuboorera zvinoenderana nekusimba kwedombo rakaomerwa zvakasimba (semita 1 meter dhayamita), iyo yekupedzisira inotakura inodzika kupfuura 500 kPa ine friction kelly bar; yakakwirira kudarika 500 kPa ine kunopindirana kelly bar.

3. Maturusi ekuchera: Mazhinji ematombo akaomeswa zvakanyanya anogona kucherwa nebucket-pazasi remazino ebara; double-cone spiral drilling maturusi anogona kushandiswawo pakuchera wakaoma. Kana iyo yekupedzisira yekutakura inokwira kusvika 600 kPa-900 kPa, zvinodikanwa kushandisa cartridge drill yekucheka mhete, asi hazvigoneke kutora macores, saka zvinodikanwa kushandisa kaviri-pasi kupwanya zvakare.

4. Kuchera mazino: 30/50.22 mm bullet mazino uye 4S bullet mazino ekutungamira mazino anoshandiswa kuroverera mukati memamiriro ekunze akasimba, ayo anobatsira kupwanya, kuderedza kusaramba kuchera, uye zvinobudirira kuderedza kurasikirwa.