Iityhubhu zebhoyilayinto ebalulekileyo kwibhoyila yokuvelisa, iya kuhambelana ngokuthe ngqo kwibhoyila yokwenziwa komgangatho ukwenzela ukuba umgangatho wofakelo kunye nokusetyenziswa komgangatho.Umgangatho webhoyila ityhubhu kufuneka wenziwe kwisityalo sentsimbi ukuqinisekisa, kodwa kwimeko yokubonelelwa ngokufutshane, kunikezelwe kumbhobho webhoyila osetyenziswa ngumenzi webhoyila usoloko ufumanisa iingxaki ezithile zomgangatho, ubukhulu becala uyisebenzise eyenziwe ngamacandelo oxinzelelo lwebhoyila njengetyhubhu yodonga lwamanzi, Iityhubhu zoconvection, iityhubhu zokufudumeza ubushushu, iityhubhu ezivuzayo ezivuzayo okanye ezigqabhukileyo zemibhobho zenzekile, ibe yingxaki enkulu ethwaxa umgangatho webhoyila, le bhoyila abavelisi kunye nabasebenzisi ziimbono.Kwimeko yemarike yomthengisi, umenzi webhoyila phantse athathe uxanduva olupheleleyo kwicala lokubonelela ngezinto eziphathekayo, kubandakanywa;indlela yokulawula umgangatho webhoyila ityhubhu abenzi kwibhoyila baxhalabile ngakumbi malunga nengxaki ngoku ibe yeyona nto inzima kwibhoyila yovavanyo lwe-hydrostatic.

Umgangatho wesizwe waseTshayina GB3087-82 ibhoyila yoxinzelelo oluphantsi lombhobho wentsimbi engenamthungo: umbhobho wentsimbi wovavanyo lwe-hydrostatic kufuneka uphume ngeengcambu, iimfuno zenkqubo yokusebenza kwiimfuno zobugcisa, hayi ukuvuza okanye ukubila isenzeko.I-20 yentsimbi yoxinzelelo oluphezulu lovavanyo lwe-9.8MPa, ukumelana nombane akuyi kuba ngaphantsi kwemizuzwana ye-5.Uxinzelelo lovavanyo lwe-Hydrostatic lubalwa ngolu hlobo lulandelayo: P = 2 * S * T / D

Ifomula: P - uxinzelelo lovavanyo, kwi-MPa;s - ubukhulu bodonga lombhobho wensimbi, mm;D - ububanzi obungaphandle bombhobho wensimbi, mm;T – INombolo yeNsimbi emiselwe kwangaphambili isivuno se-60%, iMPa

Ngokuqhelekileyo kukholelwa ukuba injongo yokuvavanya i-hydrostatic iindidi ezimbini: enye yovavanyo lwe-hydrostatic ye-craft, injongo yayo kukuvavanya izixhobo (okanye iinqununu) zokuvuza, ukutywinwa kokutywinwa kwezinto zokuvavanya;olunye uvavanyo lwe-hydrostatic yokuqinisekisa Injongo kukuvavanya amandla ezinto (okanye ilungu) ukuba kwanele.Ukusuka apha sinokubona, uvavanyo lwe-hydrostatic yetyhubhu yebhoyili yinkqubo yovavanyo lwe-hydrostatic, uvavanyo loxinaniso lwezinto eziphathekayo, izinto zokuvavanya ziyaqhubeka kwaye nokuba zixinene;ayikokuqinisekisa uvavanyo lwamandla.Ibonwa ngokomelela kwethiyori ye-material mechanics, iityhubhu zentsimbi ezingenamthungo zibhityile kwaye zinecandelo elide, ubukhulu bayo obuncinci, ubukhulu betyhubhu ebhityileyo buncinci phantsi koxinzelelo olukhulu.