Uyini umehluko phakathi kwe-dry-mix kanye ne-wet-mix shotcrete?

I-Shotcrete iyinto yokwakha evame ukusetshenziselwa ukwakha izakhi zesakhiwo njengezindonga, phansi, nophahla. Iwumsebenzi oguquguqukayo kakhulu ongasetshenziswa kuzinhlelo zokusebenza eziningi, okuhlanganisa ulayini womhubhe, amachibi okubhukuda, nezindonga ezibambayo. Kunezindlela ezimbili eziyinhloko zokusebenzisa i-shotcrete: i-dry-mix kanye ne-wet-mix. Nakuba zombili lezi zindlela zibandakanya ukufafaza ukhonkolo noma udaka endaweni engaphezulu kusetshenziswa umshini womoya, kunomehluko omkhulu endleleni impahla elungiselelwa futhi isetshenziswe ngayo. Kulesi sihloko, sizoxoxa ngomehluko phakathi kwe-dry-mix kanye ne-wet-mix shotcrete.

I-Dry-mix Shotcrete:

I-Dry-mix shotcrete, eyaziwa nangokuthi i-gunite, iyindlela yokufafaza ukhonkolo owomile noma udaka endaweni engaphezulu bese wengeza amanzi emlonyeni. Izinto ezomile zixutshwa ngaphambili futhi zilayishwe ku-hopper, ephakela ingxube emshinini wokudubula. Umshini usebenzisa umoya ocindezelwe ukuze uqhubekisele phambili into eyomile ngepayipi, eliqondiswe endaweni okuhlosiwe. Ku-nozzle, amanzi engezwa ezintweni ezomile, okwenza kusebenze usimende futhi uvumele ukuthi uhlangane nomhlabathi.

Enye yezinzuzo eziyinhloko ze-dry-mix shotcrete ukuthi ivumela ukulawula okukhulu phezu komklamo wokuhlanganisa. Ngenxa yokuthi into eyomile ixutshwe ngaphambilini, imiksi ingalungiswa ukuze ihlangabezane nezidingo ezithile zamandla, ukusebenza, kanye nesikhathi sokusetha. Lokhu kukwenza kube ukukhetha okuhle kwezinhlelo zokusebenza ezikhethekile lapho kudingeka khona ukunemba okuphezulu.

Enye inzuzo ye-dry-mix shotcrete ukuthi ingasetshenziswa ezingxenyeni ezincane kune-wet-mix shotcrete. Lokhu kukwenza kube ukukhetha okuhle ezinhlelweni zokusebenza lapho isisindo siyinto ekhathazayo, njengakumadekhi ebhuloho noma kwezinye izimo lapho kudingeka khona impahla engasindi.

Kodwa-ke, i-dry-mix shotcrete nayo inobubi obuthile. Ngenxa yokuthi izinto ezomile ziqhutshwa umoya ocindezelweyo, kungase kube nenani elikhulu lokuphindaphinda noma ukuchithwa kwe-overspray, okungadala indawo yokusebenza engcolile futhi kungaholela ekumoshweni kwempahla. Ukwengeza, ngenxa yokuthi amanzi engezwa ku-nozzle, kungase kube nokuhlukahluka kokuqukethwe kwamanzi, okungathinta amandla nokuvumelana komkhiqizo wokugcina.

I-Shotcrete ye-Wet-mix:

I-Wet-mix shotcrete iyindlela yokufafaza ukhonkolo noma udaka endaweni ehlanganisa ukuxutshwa kusengaphambili kwezinto ezibonakalayo namanzi ngaphambi kokuthi zilayishwe emshinini wokudubula. Izinto ezimanzi zibe sezimpontshwa ngepayipi bese zifafazwa endaweni okuqondiwe kuyo kusetshenziswa umoya ocindezelweyo. Ngenxa yokuthi impahla ixutshwe ngaphambili namanzi, idinga umfutho womoya omncane ukuyihambisa ngepayipi kune-dry-mix shotcrete.

Enye yezinzuzo ezinkulu ze-wet-mix shotcrete ukuthi ikhiqiza i-rebound encane noma i-overspray kune-dry-mix shotcrete. Ngenxa yokuthi impahla ixutshwe ngaphambili namanzi, inejubane eliphansi uma iphuma emlonyeni, okunciphisa inani lempahla ehlehlayo isuka phezulu. Lokhu kubangela indawo yokusebenza ehlanzekile kanye nempahla encane emoshekayo.

Enye inzuzo ye-wet-mix shotcrete ukuthi ikhiqiza umkhiqizo ongaguquki futhi ofanayo kune-dry-mix shotcrete. Ngenxa yokuthi ukuxuba kuhlanganiswe ngaphambili namanzi, kunokuhlukahluka okuncane kokuqukethwe kwamanzi, okungabangela amandla afanayo kanye nokuvumelana.

Nokho, i-wet-mix shotcrete nayo inobubi obuthile. Ngenxa yokuthi okokusebenza kuxutshwe ngaphambili namanzi, kukhona ukulawula okuncane phezu kwedizayini yengxube kune-dry-mix shotcrete. Ukwengeza, i-wet-mix shotcrete idinga okokusebenza okuningi futhi ingabiza kakhulu kune-dry-mix shotcrete. Okokugcina, ngenxa yokuthi i-wet-mix shotcrete inokuqukethwe okuphezulu kwamanzi, ingathatha isikhathi eside ukuphulukiswa futhi ingase ibe lula ekuqhekekeni nasekushwabaneni.

Isiphetho:

Kafushane, kokubili i-dry-mix ne-wet-mix shotcrete inezinzuzo zayo kanye nokubi.