Imisebenzi yokudonsa igcwele e-Bald Head Island, njengoba osonkontileka bethutha isihlabathi e-Jaybird Shoals ogwini ukuze bavikele i-rock groin futhi bengeze izinto e-South Beach.

I-Marinex Construction Co. dredge yaqala ukudonsa isihlabathi cishe emasontweni amathathu edlule futhi cishe isiwuqedile umsebenzi owodwa kwezintathu, izikhulu zilinganisela.Zisebenza ebusika ukuze zigweme ukuphazamisa izimfudu zasolwandle ezihlala izidleke kanye nezinhlobo zezinhlanzi ezifudukayo.

UDale McPherson, oqapha indawo kanjiniyela u-Erik Olsen, uthe i-24-inch dredge ibinyakaza isilinganiso sama-cubic yards esihlabathi esingama-cubic 10,000 ngosuku, kodwa inosuku olulodwa lapho idonsa ama-cubic yards angama-30,000.Inkontileka yeDolobhana engu-$11.7-million idinga ukubekwa kwesihlabathi esingu-1.1-million cubic yards.

Umsebenzi ufeza izinto eziningi.Okokuqala, ibeka isihlabathi ngemuva kanye nengxenye ye-terminal rock groin lapho kuhlangana khona amabhishi aseNtshonalanga naseNingizimu.Lokho kubekwa kubizwa ngokuthi i-fillet.Umsebenzi uzohlinzeka ngesihlabathi solwandle futhi umboze amashubhu e-geotextile angu-13 agcwele isihlabathi asiza ukuvimbela i-South Beach ukuthi ingasheleli esiteshini sokuthumela esiseduze.

I-rock groin - okuwukuphela kwayo ohlotsheni lwayo esifundazweni - isebenzisa amatshe amakhulu ahlelwe njengengalo egobile ukuze abambe isihlabathi esifudukayo sogu olude.

Sekukonke, ukudonsa kuzodala i-berm ephakathi kwama-200 nama-250-feet ububanzi enwebeka cishe isigamu semayela, kusho uJeff Griffin, umsizi wemenenja yedolobhana kanye nokuvikelwa kogu.

UMcPherson uthe abashayeli balethe isihlabathi esisezingeni eliphezulu ogwini futhi abakaze bahlangabezane nezinkinga ezinkulu.Nangempela bashaya inqwaba yamalahle aqinile ababengalindelekile ngelinye ilanga kodwa basheshe babeka uhlaka ukuze bagweme amalahle.Abasebenzi ogwini basusa zonke izingcezu ezilingana nesibhakela ngokushesha.Izikhulu zedolobhana zikholelwa ukuthi kungenzeka ukuthi amalahle ehle kudala kweminye yemikhumbi eminingi eyake yahlasela iLower Cape Fear.

Ipayipi le-dredge lihlanganisa idivayisi yokuhlukanisa evumela abasebenzi ukuthi babeke isihlabathi eduze kwezingxenye ezihlukene zolwandle ngaphandle kokubeka kabusha ipayipi ngokuphelele.

Isinyathelo esilandelayo kuzoba ngeBradley Industrial Textiles ukuthi ithathe indawo yamashubhu e-groin agcwele isihlabathi, kusho uGriffin.Amashubhu ashintshwayo azoba nesimbozo sokuwenza amelane kakhulu nokukhanya kwe-ultraviolet lapho engamboziwe ngokuphelele isihlabathi, esho.Leyo nkontileka ingu-$1.04-million.

Ngesikhathi sokwakha, abahambela olwandle bayacelwa ukuthi bagweme izindawo ezibiyelwe ngokuphelele futhi basebenzise iziphambano ezimbozwe isihlabathi kuphela lapho benyathela phezu kwepayipi lokudonsa.