Izintambo ezihamba ngaphansi kolwandle zidlala indima ebalulekile kwezokuxhumana emhlabeni wonke, zithwala idatha eningi ezilwandle. Ukukhetha izinto ezifanele zalezi zintambo kubalulekile ukuze kuqinisekiswe ukuqina kwazo, ukusebenza kwazo, nokwethembeka ezindaweni ezingaphansi kwamanzi eziyinselele. Kulesi sihloko, sizohlola izinselele ezihilelekile ekukhetheni izinto zezintambo ezihamba ngaphansi kolwandle futhi sixoxe ngezixazululo ezingasiza ekwenzeni izinqumo ezinolwazi.
Ukumelana Nokugqwala:
Enye yezinselelo eziyinhloko ekwakhiweni kwamakhebula angaphansi kolwandle ukugqwala. Izintambo zichayeka emanzini olwandle, okungadala umonakalo omkhulu wokugqwala ngokuhamba kwesikhathi. Ukukhetha izinto ezinokumelana nokugqwala okuhle kakhulu kubalulekile empilweni yekhebula ende. Izixazululo ezinjengokusebenzisa ama-alloy amelana nokugqwala njengensimbi engagqwali noma ukusebenzisa ama-coatings akhethekile anganikeza ukuvikeleka okusebenzayo ekugqwaleni.
Amandla Emishini:
Izintambo ezihamba ngaphansi kolwandle zidinga ukumelana nokucindezela okukhulu nokucindezeleka ngenxa yamaza olwandle, amagagasi, nesisindo samanzi. Ukukhetha Okubalulekile Kwamakhebula Ahamba Ngaphansi Kolwandle anamandla amakhulu okusebenza kubalulekile ukuze kuqinisekiswe ukuthi izintambo zingakwazi ukumelana nalawa mandla ngaphandle kokuphazamisa ubuqotho bazo. Izinto zamandla aqine kakhulu njengemicu ye-aramid kanye nama-polymers e-carbon fibre-reinforced (CFRP) ngokuvamile zisetshenziselwa ukuthuthukisa izakhiwo zemishini yezintambo ezihamba ngaphansi kolwandle.
Ukuvinjwa kwamanzi kanye nokufakwa kwe-insulation:
Ukugcina izinto ezifanele zokuvala amanzi kanye nokuvimbela amanzi kubalulekile ukuze kuvinjelwe ukungena kwamanzi nokuvikela izingxenye zangaphakathi zekhebula. I-Polyethylene, i-polypropylene, ne-polyethylene exhunywe ngokuphambanayo (i-XLPE) ivamise ukusetshenziselwa ukwahlukanisa kanye nezingqimba ezivimba amanzi ezintamboni zangaphansi kolwandle. Lezi zinto zinikeza izakhiwo ezinhle kakhulu zokuvala ugesi futhi zingamelana nokungena kwamanzi, ziqinisekise ukusebenza kahle kwekhebula nokuphila isikhathi eside.
Ukuvumelana nezimo kanye ne-Bend Radius:
Izintambo ezihamba ngaphansi kwamanzi ngokuvamile zidinga ukuguquguquka futhi zikwazi ukumelana nokugoba okuphindaphindiwe ngaphandle kokuphazamisa ukusebenza kwazo. Izinto Ezisetshenziswa Ngamakhebula Angaphansi Kolwandle ezinokuguquguquka okuphezulu nokuqina okugoba okuphansi, njengezinhlobo ezithile ze-polyurethane nama-elastomers, zivame ukusetshenziswa ukuze kuqinisekiswe ukuthi izintambo zingafakwa futhi zigcinwe ngaphansi kwezimo ezihlukahlukene zangaphansi kwamanzi kuyilapho kugcinwa ubuqotho bawo kagesi kanye nemishini.
Ukuqina Kokushisa:
Izintambo ezihamba ngaphansi kwamanzi zingase zibe nokuhluka okukhulu kwezinga lokushisa ezindaweni ezingaphansi kwamanzi. Kubalulekile ukukhetha Izinto Ezisetshenziswa Ngamakhebula Angaphansi Kolwandle ezinokuzinza okuhle kakhulu kwe-thermal ukuqinisekisa ukuthi izintambo zingakwazi ukumelana nalezi zinguquko ngaphandle kokuthikameze ukusebenza kwazo. Izinto ze-Thermoplastic ezifana ne-polyethylene ne-polypropylene zinikeza ukuzinza okuhle kokushisa, okuzenza zibe yizinketho ezifanele zokufakwa kwe-insulation kanye ne-sheathing layers.
Isiphetho:
Ukukhetha izinto ezifanele zezintambo ezihamba ngaphansi kwamanzi kuyinqubo ebucayi ebandakanya ukucabangela izinselele eziqondene nendawo engaphansi kwamanzi. Ngokubhekana nezinto ezinjengokumelana nokugqwala, amandla emishini, ukuvinjwa kwamanzi, ukuguquguquka, nokuzinza kwe-thermal, abakhiqizi bezintambo nama-opharetha bangaqinisekisa ukusebenza kahle nokuphila isikhathi eside kwezintambo ezihamba ngaphansi kolwandle. Ukuqonda lezi zinselele nokusebenzisa izixazululo ezifanele zempahla kubalulekile kumanethiwekhi okuxhumana omhlaba athembekile nasebenza kahle.
Isikhathi sokuthumela: May-02-2023