Xa kuziwa ekukhetheni umbhobho wentsimbi, kukho iindlela ezimbini zokukhetha:umbhobho ojikelezayokwayeumbhobho ongenamthungo. Ngelixa zombini zineengenelo zazo, umbhobho wentsimbi ojikelezayo udla ngoqoqosho ngakumbi ngokwexabiso.

Inkqubo yokuvelisa i-spiral steel pipe ilula, ngokukodwa kubandakanywa ukubunjwa, i-welding kunye nokusika, okunciphisa kakhulu iindleko zemveliso. Ngokwahlukileyo, inkqubo yokuvelisa imibhobho yensimbi engenamthungo ibandakanya amanyathelo amaninzi afana nokunyibilika, ukubhoboza, ukunweba kunye nokunyangwa kobushushu, okwenza ixabiso lemveliso liphezulu.

Nangona kwezinye izicelo ezithile, imibhobho yentsimbi engenamthungo inokufaneleka ngakumbi ngenxa yomthamo wayo obalaseleyo wokuthwala uxinzelelo kunye nokumelana nobushushu obuphezulu, kwiimeko ezininzi, imibhobho yentsimbi ejikelezayo inokuhlangabezana nemfuno, kwaye ixabiso liphantsi.

Ngoko ke, xa ukhetha imibhobho yensimbi ejikelezayo kunye nemibhobho yensimbi engenamthungo, ngaphezu kokuqwalasela indawo yokusetyenziswa kunye neemfuno zokusebenza, ixabiso likwaqwalasela okubalulekileyo. Ukuqonda inkqubo yokuvelisa kunye nokuhluka kwexabiso lemibhobho yentsimbi eyahlukeneyo kunokunceda abathengi benze izigqibo ezifanelekileyo.

Xa kuthengwa imibhobho yensimbi ye-spiral, kufuneka kwakhona ubeke ingqalelo ekukhetheni umenzi onomgangatho othembekileyo. Umenzi ofanelekileyo kufuneka abe nenkqubo engqongqo yokulawula umgangatho wokuqinisekisa umgangatho kunye nokusebenza kombhobho wensimbi ojikelezayo. Ukongezelela, umenzi kufuneka akwazi ukubonelela ngenkonzo ebanzi emva kokuthengisa, ukwenzela ukuba xa iingxaki zenzeke ngexesha lokusetyenziswa, zinokusombululwa ngexesha elifanelekileyo.

Ngokubanzi, inzuzo yexabiso lombhobho wentsimbi ejikelezayo yenza ukuba ibe ngumkhuphisana oqinileyo kumbhobho wensimbi ongenamthungo kwizicelo ezininzi zoshishino. Nangona imibhobho yentsimbi engenamthungo inokuba nentsebenzo engcono kwezinye iindawo ezinoxinzelelo oluphezulu, ubushushu obuphezulu, kuninzi lwezicelo, imibhobho yentsimbi eshukumayo sele ikwazi ukuhlangabezana neemfuno. Ngoko ke, kubaluleke kakhulu ukuqonda umahluko wexabiso kunye nenkqubo yokuvelisa iintlobo ezahlukeneyo zemibhobho yensimbi yokuthengwa okufanelekileyo kweemveliso zepayipi zensimbi.