Pipe Drill Hole

Kiʻi Hōʻike ʻia ʻo Blast Hole Drill Pipe

ʻO ka wehewehe pōkole:

DTH drill rod/drill pipe kiʻekiʻe no ka ʻeli ʻana, ka lua wai, ka ʻeli ʻana

ʻŌlelo leka uila

Huahana Huahana

ʻO ka paipu drill he paipu kila ikaika loa i hoʻohana ʻia i ka wili.Ma muli o ke ʻano wili a me ke kumu o ka wili ʻana, hele mai nā paipu i nā mānoanoa like ʻole a me nā lōʻihi, me ka lōʻihi maʻamau he 3-10 mika.Hoʻohui ʻia nā paipu wili i kēlā me kēia i ka wā e neʻe ana ka drill i ka hohonu o ka pōhaku.ʻO ka hui pū ʻana, hana nā paipu i kahi kaula drill, hiki ke hoʻonui i kekahi mau kilomita i lalo i ka lepo.

ʻO kēlā me kēia paipu drill he ʻekolu ʻāpana i hui pū ʻia, kahi ʻāpana waena a me ʻelua ʻāpana hope.Aia ma ka ʻāpana hope he kaula kāne ("pin") a i ʻole he kaula wahine ("pahu"), kahi e hiki ai ke hoʻohui i ʻelua paipu drill.Hoʻokomo ʻia ke kaula drill holoʻokoʻa i nā haʻahaʻa kiʻekiʻe loa i ka wā wili, a ʻo ke kaula ka mea koʻikoʻi loa i kēlā me kēia paipu.Inā no kekahi kumu ʻaʻole kūpono ke kaula kāne a me ka wahine i kekahi i kekahi, e haki paha ka milo a nalowale kāu kaula drill holoʻokoʻa.

Nui		Helu nui Lb/ft	ʻAno kaumaha i helu ʻia		Mānoanoa pā
i loko.	mm	Helu nui Lb/ft	lb/ft	kg/m	i loko.	mm
2 3/8	60.3	6.65	6.26	9.32	0.28	7.11
2 7/8	73	10.4	9.72	14.48	0.362	9.19
3 1/2	88.9	9.5	8.81	13.12	0.254	6.45
3 1/2	88.9	13.3	12.31	18.34	0.368	9.35
3 1/2	88.9	15.5	14.63	21.79	0.449	11.4
3 1/2	88.9	15.5	14.63	21.79	0.449	11.4
4	101.6	14	12.93	19.26	0.33	8.38
4 1/2	114.3	13.75	12.24	18.23	0.271	6.88
4 1/2	114.3	16.6	14.98	22.31	0.337	8.56
4 1/2	114.3	20	18.69	27.84	0.43	10.92
5	127	16.25	14.87	22.15	0.296	7.52
5	127	19.5	17.93	26.71	0.362	9.19
5	127	19.5	17.93	26.71	0.362	9.19
5	127	25.6	24.03	35.79	0.5	12.7
5	127	25.6	24.03	35.79	0.5	12.7
5 1/2	139.7	21.90	19.81	29.51	0.361	9.17
5 1/2	139.7	24.70	22.54	33.57	0.415	10.54