Yintoni umahluko phakathi kwe-dry-mix kunye ne-wet-mix shotcrete?

I-Shotcrete yimathiriyeli yokwakha edla ngokusetyenziswa ekudaleni izinto zesakhiwo ezifana neendonga, imigangatho kunye nophahla. Yimathiriyeli eguquguqukayo kakhulu enokuthi isetyenziswe kuluhlu olubanzi lwezicelo, kubandakanywa i-tunnel linings, amadama okuqubha, kunye neendonga zokugcina. Kukho iindlela ezimbini eziphambili zokusebenzisa i-shotcrete: i-dry-mix kunye ne-wet-mix. Ngelixa zombini ezi ndlela zibandakanya ukutshiza ikhonkrithi okanye udaka phezu komhlaba kusetyenziswa isixhobo somoya, kukho umahluko omkhulu kwindlela elungiswa ngayo kwaye isetyenziswe ngayo. Kweli nqaku, siza kuxubusha umahluko phakathi komxube owomileyo kunye ne-wet-mix shotcrete.

Dry-mix Shotcrete:

I-Dry-mix shotcrete, ekwaziwa ngokuba yi-gunite, yindlela yokutshiza i-concrete eyomileyo okanye udaka phezu komhlaba emva koko wongeze amanzi emlonyeni. Izinto ezomileyo zixutywe ngaphambili kwaye zilayishwe kwi-hopper, ezondla umxube kumatshini we-shotcrete. Umatshini usebenzisa umoya oxinzelelweyo ukuqhubela phambili izinto ezomileyo nge-hose, ejoliswe kwindawo ekujoliswe kuyo. Kwi-nozzle, amanzi ongezwa kwizinto ezomileyo, ezivuselela i-samente kwaye zivumela ukuba zidibanise nomphezulu.

Enye yeenzuzo eziphambili ze-dry-mix shotcrete kukuba ivumela ulawulo olukhulu kuyilo lomxube. Ngenxa yokuba izinto ezomileyo zixutywe kwangaphambili, umxube unokulungelelaniswa ukuhlangabezana neemfuno ezithile zamandla, ukusebenza kunye nokubeka ixesha. Oku kuyenza ibe lukhetho olufanelekileyo kwizicelo ezikhethekileyo apho kufuneka inqanaba eliphezulu lokuchaneka.

Enye inzuzo ye-shotcrete yomxube owomileyo kukuba ingasetyenziswa kwimigangatho emincinci kune-shotcrete emanzi. Oku kwenza kube lukhetho olulungileyo lwezicelo apho ubunzima buyinkxalabo, njengakwiidekhi zebhulorho okanye kwezinye iimeko apho kufuneka izinto ezilula.

Nangona kunjalo, i-shotcrete yomxube owomileyo nayo inento engalunganga. Ngenxa yokuba izinto ezomileyo ziqhutywe ngumoya oxinzelelweyo, kunokubakho inani elikhulu lokuphindaphinda okanye ukugqithiswa kwe-overspray, okunokudala indawo yokusebenza engcolileyo kwaye kunokubangela ukuba kubekho izinto ezichithwayo. Ukongezelela, ngenxa yokuba amanzi ongezwa kwi-nozzle, kunokubakho ukuhluka kumxholo wamanzi, onokuchaphazela amandla kunye nokuhambelana kwemveliso yokugqibela.

I-Wet-mix Shotcrete:

I-Wet-mix shotcrete yindlela yokutshiza ikhonkrithi okanye udaka phezu komhlaba obandakanya ukuxuba kwangaphambili izixhobo kunye namanzi ngaphambi kokuba zilayishwe kumatshini wokudubula. Izinto ezimanzi zimpontshwa ngombhobho kwaye zitshizwe kwindawo ekujoliswe kuyo kusetyenziswa umoya oxinanisiweyo. Ngenxa yokuba izinto zixutywe ngaphambili namanzi, zifuna uxinzelelo lomoya oluncinci ukuyiqhubela kwi-hose kune-shotcrete eyomileyo.

Enye yeenzuzo eziphambili ze-wet-mix shotcrete kukuba ivelisa i-rebound encinci okanye i-overspray kune-dry-mix shotcrete. Ngenxa yokuba i-material ixutywe ngaphambili namanzi, inesantya esisezantsi xa iphuma kwi-nozzle, enciphisa ubuninzi bezinto ezibuyela umva phezu komhlaba. Oku kubangela ukuba indawo yokusebenza icoceke kwaye ingabi nankcitho ingako.

Enye inzuzo ye-shotcrete yomxube omanzi kukuba ivelisa imveliso engaguqukiyo kwaye ifanayo kune-shotcrete eyomileyo. Ngenxa yokuba umxube uxutywe kwangaphambili ngamanzi, kukho ukuhluka okuncinci kumxholo wamanzi, okunokubangela ukuba ube namandla afanayo kunye nokuhambelana.

Nangona kunjalo, i-wet-mix shotcrete nayo inento engalunganga. Ngenxa yokuba izinto ezixutywe kwangaphambili zixutywe namanzi, kukho ulawulo oluncinci phezu koyilo lomxube kune-shotcrete eyomileyo. Ukongeza, i-shotcrete yomxube omanzi ifuna izixhobo ezininzi kwaye inokubiza kakhulu kune-shotcrete eyomileyo. Ekugqibeleni, ngenxa yokuba i-shotcrete yomxube omanzi inomthamo ophezulu wamanzi, inokuthatha ixesha elide ukunyanga kwaye inokuba sesichengeni sokuqhekeka kunye nokushwabana.

Isiphelo:

Isishwankathelo, zombini i-dry-mix kunye ne-wet-mix shotcrete ineenzuzo zabo kunye nokungalunganga.