Akamaro k'imiyoboro ikoze mu nganda zigezweho, mu mutima wa Cangzhou, mu Ntara ya Hebei, hari uruganda rw'ibyuma rwabaye inkingi ikomeye mu nganda zikora imiyoboro y'ibyuma kuva rwashingwa mu 1993. Iyi sosiyete ifite ubuso bwa metero kare 350.000, ifite umutungo wa miliyoni 680 z'amanyarwanda, kandi ikoresha abakozi 680 bitanze. Mu bicuruzwa byayo byinshi harimo imiyoboro ikoze mu nganda ikozwe mu nganda, igice cy'ingenzi cy'ibikorwa remezo bigezweho, cyane cyane mu gutwara abantu n'ibintu mu mazi yo munsi y'ubutaka.
Munsi y'ubutakaUmuyoboro wasutsweho urusyoni ingenzi mu gutwara amazi neza kandi mu buryo bwizewe ahantu hatandukanye. Ni inkingi y'ibikorwa remezo byacu bigezweho, bigamije kwemeza ko amazi meza agera mu ngo, mu bucuruzi no mu turere tw'ubuhinzi. Guhitamo ibikoresho byo gukoresha iyi miyoboro ni ingenzi cyane, kuko igomba kwihanganira igitutu cy'ibidukikije byo munsi y'ubutaka mu gihe ikomeza kuba nziza igihe kirekire. Imwe mu mahitamo akunzwe cyane muri ubu buryo ni umuyoboro w'icyuma cya karuboni, uzwiho gukomera no kuramba kwawo.
Umuyoboro w'icyuma wa S235 JR spiral na X70 SSAW (Spiral Submerged Arc Welded) ni ibikoresho bibiri bisanzwe bikoreshwa cyane mu miyoboro y'amazi yo munsi y'ubutaka. Umuyoboro wa S235 JR ufatwa nk'umuntu ukomeye kubera imiterere yawo myiza ya mekanike, bigatuma ukoreshwa mu buryo butandukanye, harimo no gutwara amazi. Ubushobozi bwawo bwo kurwanya kwangirika mu gihe cy'ingufu butuma uhura n'ibikenewe n'ibikoresho byo munsi y'ubutaka.
Muri iki gihe, bitewe n’uburyo bwo kwihutisha iterambere ry’imijyi, uburyo bwizewe bwo kohereza amazi yo munsi y’ubutaka bwabaye ingenzi mu gutuma abantu bagira imibereho myiza. Nk’ikigo gikomeye mu nganda zikora imiyoboro y’ibyuma, uruganda rumwe rw’ibyuma rwo mu Mujyi wa Cangzhou, mu Ntara ya Hebei, rutanga imiyoboro ya Saw Welded ifite imikorere myiza cyane ku bikorwa remezo mpuzamahanga kuva rwashingwa mu 1993. Imiyoboro yarwo ya S235 JR spiral steel na X70 submerged arc spiral, hamwe n’imiterere yabyo idasanzwe ya mekanike, byabaye ibikoresho by’ingenzi mu mishinga yo kubungabunga amazi yo munsi y’ubutaka.
1. Ingufu nyinshi no kurwanya ingese bitanga umutekano mu gihe kirekire wo kohereza amazi. Umuyoboro wa S235 JR spiral: Ufite ubushobozi bwo guhangana n'ihindagurika ry'imitsi kandi ukwiriye ibidukikije bigoye, bituma umuyoboro uhora ukora neza igihe kirekire. Umuyoboro wa X70 SSAW: Ukozwe mu cyuma gikomeye kandi ukoresha ikoranabuhanga rigezweho ryo gusudira, urinda igitutu kandi urinda ingese, ukwiriye koherezwa amazi kure n'ahantu habi.
2. Ikoranabuhanga rigezweho hamwe n’igenzura rikomeye ry’ubuziranenge bitanga uburyo burambye bwo gukoresha imiyoboro y’amazi. Uru ruganda rukoresha ikoranabuhanga ryo gusudira imiyoboro y’amazi (SAW) kugira ngo rugere ku musaruro mwiza w’imiyoboro minini kandi ifite inkuta nto, runoze ikoreshwa ry’ibikoresho mu gihe rugenzura imbaraga. Ku bufatanye n’itsinda ry’abahanga ry’abantu 680 n’umuyoboro ugezweho w’amashanyarazi ufite agaciro ka miliyoni 680 z’amayuani, twemeza ko buri muyoboro w’icyuma wujuje ibisabwa mpuzamahanga, bigatanga umusanzu mu iterambere ry’ibikorwa remezo bihumanya ibidukikije. Hamwe no kuvugurura ibyifuzo by’imicungire y’umutungo kamere w’amazi ku isi, imiyoboro y’uruganda rw’icyuma rwa Cangzhou izakomeza gutanga ibisubizo birambye kandi bihendutse byo gutwara amazi mu mijyi, mu buhinzi no mu nganda, bigamije kubaka ibikorwa remezo birambye byo kubungabunga amazi.
Imiyoboro ikozwe mu nganda zikora ibikoresho by'icyuma bya Cangzhou Steel Mills ni ingenzi cyane mu miyoboro yo munsi y'amazi. Imiyoboro ya S235 JR na X70 ikozwe mu nganda zikora ibikoresho by'icyuma, ifite imiterere myiza ya mekanike kandi irwanya ibidukikije, ni ingenzi cyane mu gutuma amazi atwarwa neza. Mu gihe urebye imbere, akamaro k'ibi bicuruzwa kazakomeza kwiyongera, bigaragaza ko inganda zikora ibikoresho by'icyuma zikeneye ibikoresho byiza n'ibisubizo bishya.
Igihe cyo kohereza: Kanama-18-2025