Ngosuku lokuqala lokwakha, iqela lomsebenzi liqala ngokulungiselela ngononophelo umphezulu wethambeka kunye nomsele. Basusa ukhula, umhlaba okhululekileyo, kunye namatye abukhali, beqinisekisa ukuba ukungalungelelani komphezulu kugcinwa kukwi-±50mm ukuqinisekisa ukuba isiseko sithe tyaba nesincinci. Kwiithambeka ezintsonkothileyo, iingcali zilungisa kwangaphambili i-gradient ukuthintela ukuthambeka okugqithisileyo ekungcoliseni umgangatho wokubeka; kwiindawo ezithile, i-geotextile underlayment nayo ifakelwa kwangaphambili ukukhusela ingubo yesamente ekonakalisweni zizinto ezibukhali, ngaloo ndlela iseka isiseko esiqinileyo somsebenzi olandelayo.
Nje ukuba iingubo zesamente ezigoqiweyo zisiwe kwindawo leyo, abasebenzi bazisika ngokuchanekileyo ngokwemilinganiselo yoyilo echaziweyo, okuvumela umda ophakathi kwe-10-15 cm. Ngexesha lokufakelwa, iingubo zivulwa ukusuka phezulu ukuya ezantsi kwiindawo ezithe tyaba kwaye kwicala lokuhamba kwamanzi ngaphakathi kwemisele. Oku kuqinisekisa ukuba umphezulu wengubo uhlala uqinile—ungenamibimbi okanye iindawo ezixhonyiweyo—kwaye uhambelana ngokugqibeleleyo nomhlaba ongacwangciswanga.
Kwiindawo zokudibanisa, umgaqo ongqongqo othi “umaleko ophezulu ugqume umaleko ongezantsi, ulandela indlela amanzi ahamba ngayo” usetyenziswa ngokungqongqo, apho iindawo zokudibanisa ezisecaleni zilingana ne-≥15 cm kunye neendawo zokudibanisa ezinde ezilingana ne-≥10 cm. Emva koko, iiphini ze-anchor ze-Φ8mm ezifakwe ii-washers zisetyenziselwa ukubopha ingubo kwipateni yegridi enesithuba se-1.0–1.5 m. Kwi-crest, toe, nakwiikona zethambeka, isithuba sincitshiswa siye kwi-0.5 m ukuze kubonelelwe nge-anchorage exineneyo, kuthintelwe ukutyibilika okanye ukudumba emva kokufaka amanzi.
Iingcali zokwakha zigxininisa ukuba kufuneka kuqatshelwe ngokungqongqo izinto ezintathu ezibalulekileyo xa kufakelwa ingubo yesamente: (1) Xa amaqondo obushushu ehla ngaphantsi kwe-5°C okanye enyuka ngaphezu kwe-30°C, kufuneka kusetyenziswe amanyathelo okukhusela okanye okupholisa ukuze kuthintelwe ukuphazamiseka kwendlela yokufuma kwamanzi; (2) Ukutshiza ngokuthe ngqo umphezulu wengubo ngemipu yamanzi enoxinzelelo oluphezulu akuvumelekanga ngokungqongqo ukuthintela ukulahleka kodaka lwesamente; kwaye (3) Ingqwalasela ekhethekileyo kufuneka inikwe ukunkcenkceshela imithungo egqubayo kunye neendawo ze-anchor ukuqinisekisa ukuba inyibilika kakuhle kwaye iyafana kumphezulu wonke. Kuphela ngokuqwalaselwa ngokungqongqo kwezi nkcukacha apho le ndlela intsha inokukwazi ngokwenene ukufezekisa amandla ayo apheleleyo, okukhokelela kwiiprojekthi zobunjineli ezihlala ixesha elide nezisemgangathweni ophezulu.
Itshintsha ukusuka kwilaphu elithambileyo ibe yigobolondo eliqinileyo elikhuselayo, ingubo yesamente—enenkqubo yayo yokufaka encinci kunye nobuchule bokusebenza obugqwesileyo—ivula indlela entsha yokuphucula umgangatho kunye nokusebenza kakuhle kweeprojekthi zeziseko zophuhliso. Njengoko ubuchwepheshe buqhubeka bukhula, le “mpahla yobuchwepheshe obuphezulu eguquguqukayo” ikulungele ukwamkelwa ngokubanzi kuluhlu olubanzi lwezicelo, ngaloo ndlela inegalelo kuphuhliso oluphezulu lweziseko zophuhliso eziluhlaza nezisebenzayo.
Ixesha lokuthumela: Epreli-09-2026
