Iimpawu zokubunjwa kwamatye anzima njengegranite kunye nomngcipheko wokwakhiwa komngxuma. Xa uyila iziseko zemfumba kwiibhulorho ezininzi ezinkulu, iimfumba ziyafuneka ukuba zingene kwilitye eliqinileyo eliguquguqukayo ukuya kubunzulu obuthile, kunye nobubanzi beemfumba ezenzelwe ezi ziseko zeemfumba ubukhulu becala bungaphezulu kwe-1.5mm. Ukuya kuthi ga kwi-2m. Ukugrumba kolu hlobo lolwakhiwo lwamatye aqinileyo olunobubanzi obukhulu kubeka iimfuno eziphezulu kumandla wesixhobo kunye noxinzelelo, ngokubanzi kufuna itorque ngaphezulu kwezixhobo ezingama-280kN.m. Xa ubhobhoza ngolu hlobo lokubunjwa, ukulahlekelwa kwamazinyo okugaya kukhulu kakhulu, kwaye iimfuno eziphezulu zibekwe kwi-vibration resistance yezixhobo.
Indlela yokwakhiwa kwe-rotary drilling isetyenziselwa ukubunjwa kwamatye aqinile njengegranite kunye nelitye lesanti. Amanyathelo kufuneka athathwe kula manqaku alandelayo ukuphucula umngxuma ukwenza ukusebenza kakuhle kunye nokunciphisa ingozi.
(1) Isixhobo esinamandla angama-280kN.m nangaphezulu kufuneka sikhethelwe ukwakhiwa kokomba. Lungiselela amazinyo okugaya ngokuqina okuphezulu kunye nokusebenza okungcono kokusila kwangaphambili. Amanzi kufuneka afakwe kwi-anhydrous formations ukunciphisa ukuguga kwamazinyo okugaya.
(2) Lungiselela ngokufanelekileyo izixhobo zokomba. Xa ubhobhoza imingxuma yeemfumba ezinobubanzi obukhulu kolu hlobo lokubunjwa, indlela yokugaya imigangatho kufuneka ikhethwe. Kwinqanaba lokuqala, i-barrel drill eyandisiweyo kunye nobubanzi be-600mm ~ 800mm kufuneka ikhethwe ukuba ithathe ngokuthe ngqo ingundoqo kwaye idale ubuso obukhululekile; okanye i-drill encinci ye-spiral spiral kufuneka ikhethwe ukubhola ukwenza ubuso obukhululekile.
(3) Xa imingxunya etyekeleyo isenzeka kudederhu lwamatye aqinileyo, kuba nzima kakhulu ukutshayela imingxuma. Ke ngoko, xa udibana nomhlaba otyekeleyo wamatye, kufuneka ulungiswe phambi kokuba ukomba kuqhubeke ngokwesiqhelo.
Ixesha lokuposa: Jan-05-2024