【Yuav tsum tau rau cov cuab yeej drilling hauv blasting qhov drilling ua haujlwm】
Drilling feem ntau piav qhia los ntawm plaub yam ntxwv: ncaj, qhov tob, ncaj thiab ruaj khov.
1.Qhov taub
Txoj kab uas hla ntawm lub qhov drilling yog nyob ntawm lub hom phiaj uas siv lub qhov.In blasting qhov drilling kev ua haujlwm, muaj ntau yam uas cuam tshuam rau kev xaiv ntawm qhov.Piv txwv li: qhov loj ntawm cov pob zeb uas yuav tsum tau tom qab pob zeb tawg;hom blasting xaiv;qhov "zoo" yuav tsum tau ntawm cov pob zeb hais blasted (qhov smoothness ntawm cov hais thiab qhov feem ntawm crushing);cov degree ntawm kev co nto tso cai nyob rau hauv lub blasting lag luam, thiab lwm yam nyob rau hauv loj quarries los yog loj qhib-qhov mines, kev siv cov loj-aperture blasting ua hauj lwm feem ntau txo tus nqi ntawm drilling thiab blasting ib tuj ntawm pob zeb.In underground pob zeb drilling ua hauj lwm, Cov cuab yeej siv tsuas yog txwv los ntawm qhov chaw hauv av.Nyob rau hauv qhov drilling ntawm cov dej zoo qhov, qhov loj ntawm lub pob zeb qhov nyob ntawm txoj kab uas hla ntawm cov yeeb nkab lossis txoj kab uas hla ntawm cov khoom siv txhawb nqa yuav tsum tau ua los ntawm cov twj tso kua dej. , cov diameters ntawm cov ntsia liaj qhov rooj sib txawv yog qhov kev txiav txim siab.
2. Qhov tob ntawm qhov
Qhov tob ntawm lub qhov yog cuam tshuam los ntawm cov khoom siv pob zeb drilling, thiab tsuas yog cov cuab yeej drilling luv luv tuaj yeem xaiv tau nyob rau hauv qhov chaw txwv.Short drilling cov cuab yeej nyob rau hauv daim ntawv ntawm threaded kev sib txuas yog tsim nyog heev rau pob zeb drilling nyob rau hauv ib tug txwv qhov chaw.In pob zeb drilling hauj lwm. rau blasting pob zeb qhov (kab rov tav los yog ntsug qhov), qhov tob ntawm drilling yog me ntsis ntxaum tshaj qhov theoretical qhov tob los yog qhov siab ntawm terraces.Raws li qee cov pob zeb drilling, qhov drilling qhov tob yuav tsum tau tob (50-70 meters los yog tob dua. ).Feem ntau, DTH pob zeb drilling txoj kev yog siv los ntawm sab saum toj rauj cuam tshuam pob zeb drilling txoj kev.Kev hloov hluav taws xob ntawm DTH pob zeb drilling txoj kev thiab cov hmoov paug tawm hauv qhov tob tob yog qhov ua tau zoo dua.
3.Txoj kev ncaj ntawm lub qhov
Qhov ncaj ntawm lub qhov yog qhov sib txawv heev nrog cov pob zeb hom thiab tej yam ntuj tso, cov kev xaiv mining thiab cov khoom siv mining xaiv.In kab rov tav thiab inclined pob zeb drilling, qhov hnyav ntawm cov cuab yeej laum yuav cuam tshuam rau qhov offset ntawm lub qhov. .Thaum drilling qhov sib sib zog nqus blasting qhov, lub pob zeb drilled lub qhov yuav tsum ncaj li sai tau kom tus nqi yuav raug tau qhov zoo tagnrho blasting nyhuv.
Hauv qee hom kev ua haujlwm ntawm pob zeb drilling, feem ntau yuav tsum tau xyaum cov pob zeb sib sib zog nqus qhov, thiab qhov ncaj ntawm lub pob zeb qhov yog xav tau heev, xws li cov yeeb nkab qhov los yog cable qhov.Txawm tias qhov yuav tsum tau ua rau cov dej hauv qhov dej yog nruj heev kom cov dej. cov kav dej thiab cov twj tso kua mis tuaj yeem ntsia tau zoo.
Kev siv cov khoom siv sib txawv ntawm cov lus qhia, xws li phau ntawv qhia lub taub hau, coj cov kav dej thiab qhia cov kav dej, yuav txhim kho qhov ncaj ntawm lub qhov.Ntxiv rau qhov offset ntawm lub pob zeb qhov nws tus kheej, cov kev taw qhia ntawm qhov drilling kuj muaj feem xyuam rau. yam xws li qib ntawm kev hloov kho ntawm lub propulsion beam thiab qhov tseeb ntawm qhov qhib.Yog li ntawd, yuav tsum muaj qhov tseeb ntawm qhov no.Studies tau pom tias ntau tshaj 50% ntawm lub pob zeb qhov offset yog vim tsis tsim nyog propulsion beam hloov thiab tsis zoo. qhib.
4.Qhov stability
Lwm qhov yuav tsum tau ua rau lub pob zeb drilled yog nyob ruaj khov kom txog thaum nws tau raug them los yog siv rau lwm lub hom phiaj.Rau qee yam xwm txheej, xws li thaum drilling xoob cov ntaub ntawv los yog cov pob zeb mos mos (cov cheeb tsam muaj qhov cuam tshuam rau degrade thiab txhaws pob zeb qhov), Nws yog ib qho tseem ceeb heev uas yuav tau siv lub laum yeeb nkab los yog hose mus rau hauv lub qhov drilled pob zeb.
Post lub sij hawm: Mar-14-2023