Ngosuku lokuqala lokwakha, ithimba lomsebenzi liqala ngokulungisa ngokucophelela indawo yokuthambeka kanye nezindawo zomsele. Basusa kahle ukhula, inhlabathi ekhululekile, namatshe abukhali, baqinisekise ukuthi ukungalungi kobuso kugcinwa ngaphakathi kokubekezelelana okungu-±50mm ukuqinisekisa i-substrate eyisicaba nencane. Ema-slope ayinkimbinkimbi, ochwepheshe balungisa kusengaphambili i-gradient ukuze bavimbele ukuthambeka ngokweqile ukuthi kungaphazamisi ikhwalithi yokubeka; ezindaweni ezithile, i-underlayment ye-geotextile nayo ifakwa kusengaphambili ukuvikela ingubo yesimende ekulimaleni kwezinto ezibukhali, ngaleyo ndlela kusungulwe isisekelo esiqinile somsebenzi olandelayo.
Uma izingubo zokulala zesamente ezigoqiwe sezilethwe endaweni, izisebenzi ziyazisika ngokunembile zibe nobukhulu obubekiwe, okuvumela ukuthi kube nomkhawulo ohambisanayo ongu-10-15 cm. Ngesikhathi sokufakwa, izingubo zokulala ziyavulwa kusukela phezulu kuya phansi emithambekeni kanye nokuya lapho amanzi egeleza khona ngaphakathi kwemisele. Lokhu kuqinisekisa ukuthi ubuso bengubo buhlala buqinile—bungenamibimbi noma izingxenye ezilengayo—futhi buhambisana kahle nendawo engajwayelekile.
Emajoyintini ahambisanayo, isimiso esiqinile sokuthi “ungqimba olungaphezulu luhlanganisa ungqimba olungezansi, lulandela indlela yokugeleza kwamanzi” siqiniswa ngokuqinile, lapho ukugqagqana okusemaceleni kulinganisa ≥15 cm kanye nokugqagqana okude ≥10 cm. Ngemva kwalokho, izikhonkwane ze-Φ8mm ezifakwe ama-washers zisetshenziselwa ukubopha ingubo ngephethini yegridi enesikhala esingu-1.0–1.5 m. Esiqongweni, ezinzwaneni, nasemakhoneni omthambeka, isikhala sincishiswa sibe ngu-0.5 m ukuze kuhlinzekwe ukubambelela okuqinile, kuboshwe ngokuqinile ingubo yesimende endaweni yayo futhi kuvinjelwe ukushelela noma ukukhukhumala ngemva kokuthola amanzi.
Ochwepheshe bezokwakha bagcizelela ukuthi amaphuzu amathathu abalulekile kumele aqashelwe ngokucophelela ngesikhathi sokufakwa kwengubo yesamente: (1) Uma amazinga okushisa ehla ngaphansi kuka-5°C noma enyuka ngaphezu kuka-30°C, kumele kusetshenziswe izindlela zokuvimbela ukungcola noma zokupholisa ukuze kugwenywe ukuphazamisa ukusabela komswakama; (2) Ukufutha ngqo ubuso bengubo ngezibhamu zamanzi ezinomfutho ophezulu akuvunyelwe ngokuphelele ukuvimbela ukulahleka kwe-slurry yesamente; kanye (3) Ukunaka okukhethekile kumele kunikezwe ekuniseleni imigqa ehambisanayo kanye namaphuzu okubambelela ukuqinisekisa ukuqiniswa okuphelele nokulinganayo kulo lonke ubuso. Kuphela ngokunaka okuqinile kule mininingwane lapho le ndlela entsha ingafeza khona amandla ayo aphelele, okuholela kumaphrojekthi obunjiniyela aqinile, asezingeni eliphezulu.
Ishintsha isuka endwangu ethambile ibe yigobolondo eliqinile lokuvikela, ingubo yesimende—enenqubo yayo yokufaka encane kanye namakhono okusebenza amangalisayo—ivula indlela entsha yokuthuthukisa ikhwalithi kanye nokusebenza kahle kwamaphrojekthi engqalasizinda. Njengoba ubuchwepheshe buqhubeka nokuvuthwa, le “mpahla yobuchwepheshe obuphezulu eguquguqukayo” ilungele ukusetshenziswa kabanzi kuzo zonke izinhlelo zokusebenza eziningi, ngaleyo ndlela inikele ekuthuthukisweni kwekhwalithi ephezulu kwengqalasizinda eluhlaza nesebenza kahle.
Isikhathi sokuthunyelwe: Ephreli-09-2026
