Isitshalo Se-Asphalt se-TTM - Umkhiqizi Wemishini Yokuxuba Nokuvuselela I-Asphalt Ochwepheshe Kusukela ngo-2004.
Ukwakhiwa kwemigwaqo kuyinqubo eyinkimbinkimbi ehilela izigaba eziningana, kusukela ekuhleleni nasekuklameni kuya ekuqalisweni nasekulungisweni. Esinye sezici ezibaluleke kakhulu zale nqubo imishini esetshenziswayo. Ngaphandle kwemishini efanele, ukwakha imigwaqo eqinile nephephile bekungeke kwenzeke. Kodwa wake wazibuza ukuthi, yimiphi imishini esetshenziselwa ukwakhiwa kwemigwaqo ? Ake singene emininingwaneni futhi sihlole imishini ebalulekile eyenza ukwakhiwa kwemigwaqo yesimanje kube nokwenzeka.
Ukwakhiwa kwemigwaqo yesimanje kuncike ezinhlobonhlobo zemishini ekhethekile, ngayinye eyenzelwe imisebenzi ethile. Ngezansi uhlu lwemishini esetshenziswa kakhulu kumaphrojekthi okwakhiwa kwemigwaqo:
Imishini yokumba iyimishini ehlukahlukene esetshenziselwa ukumba, ukuhambisa inhlabathi, kanye nokuhlanza umhlaba. Iwusizo kakhulu ezigabeni zokuqala zokwakhiwa komgwaqo, lapho kudingeka khona ukulungiswa kwendawo. Kungakhathaliseki ukuthi ukumba imisele yezinhlelo zokukhipha amanzi noma ukususa udoti, imishini yokumba ibaluleke kakhulu.
Ama-bulldozer ayimishini enzima enensingo enkulu enamathiselwe ngaphambili. Umsebenzi wawo oyinhloko ukusunduza inhlabathi, isihlabathi, nezinye izinto endaweni yokwakha. Asetshenziswa futhi ukuhleleka komhlabathi, ukuqinisekisa indawo ebushelelezi yokugandaya.
Ama-paver e-asphalt asetshenziselwa ukubeka phansi izendlalelo ze-asphalt ebusweni bomgwaqo. Le mishini isabalalisa i-asphalt ngokulinganayo, iqinisekisa ukuthi ubuso bomgwaqo bubushelelezi futhi buhlala isikhathi eside. Afakwe izinzwa nezilawuli ukuze agcine ukujiya kanye nokushisa okulungile kwe-asphalt.
Uma i-asphalt isibekwe phansi, kusetshenziswa ama-road rollers ukuze ayicindezele. Ukuminyana kubalulekile ngoba kuvimbela ama-air pockets futhi kuqinisekisa ukuthi umgwaqo ungamelana nethrafikhi enkulu. Kunezinhlobo ezahlukene zama-rollers, kufaka phakathi ama-vibratory rollers nama-static rollers, ngalinye lisebenzela injongo ethile.
Izixubi zekhonkrithi zisetshenziselwa ukuxuba usimende, amanzi, kanye nama-aggregate ukuze kwakheke ukhonkrithi. Lo mshini ubalulekile ekwakheni imigwaqo yekhonkrithi noma ekulungiseni ekhona. Umxubi uqinisekisa ukuthi ukhonkrithi uyafana futhi ulungele ukuthululwa phezu komgwaqo.
Ama-grader, aziwa nangokuthi ama-motor grader, asetshenziselwa ukudala indawo ebushelelezi nelinganayo phakathi nezigaba zokugcina zokwakhiwa komgwaqo. Afakwe i-blade ende engalungiswa ukuze kufinyelelwe i-gradient neleveli oyifunayo.
Amaloli okulahla udoti asetshenziselwa ukuthutha izinto ezifana nenhlabathi, isihlabathi, kanye ne-asphalt ukusuka kwenye indawo kuya kwenye. Adlala indima ebalulekile ekugcineni inqubo yokwakha isebenza kahle futhi ihlelwe ngesikhathi.
Ukukhetha imishini efanele yephrojekthi yakho yokwakha umgwaqo kungenza umehluko omkhulu. Izici ezifana nobukhulu bephrojekthi, uhlobo lomgwaqo owakhiwayo, kanye nesabelomali konke kudlala indima ekunqumeni ukuthi yimiphi imishini edingekayo. Kumaphrojekthi amancane, ukuqasha imishini kungaba ngcono kakhulu, kuyilapho amaphrojekthi amakhulu angadinga ukuthenga noma ukuqasha imishini esindayo.
Ukugcina imishini yokwakha imigwaqo kubalulekile ukuqinisekisa ukusebenza kahle kanye nokuphila isikhathi eside. Ukunakekelwa njalo, ukugcotshwa kwezingxenye ezihambayo, kanye nokufakwa kwezingxenye ezigugile ngesikhathi kungavimbela ukuphuka kwezimoto futhi kunciphise isikhathi sokungasebenzi. Ngaphezu kwalokho, ukuphepha kufanele kube yinto eza kuqala ngaso sonke isikhathi. Abaqhubi kumele baqeqeshwe kahle, futhi izinyathelo zokuphepha njengezigqoko eziqinile, amavesti abonisa ukukhanya, kanye nezibuko zokuphepha kufanele zigqokwe ngaso sonke isikhathi.
Ukwakhiwa kwemigwaqo kuyinqubo enezici eziningi edinga imishini ehlukahlukene ekhethekile. Kusukela kuma-grave kanye nama-bulldozer kuya kuma-paver e-asphalt kanye nama-roller emigwaqo, umshini ngamunye udlala indima ebalulekile ekudaleni imigwaqo ephephile nehlala isikhathi eside. Ukuqonda ukuthi yimiphi imishini esetshenziselwa ukwakhiwa kwemigwaqo kungakusiza ukuthi uqonde ubunzima kanye nomzamo owenziwa ekwakheni ingqalasizinda esithembele kuyo nsuku zonke.