Mwayi wogwiritsa ntchito komanso zovuta zamagalasi fiber ndi zida zophatikizika m'munda wa zomangamanga

Lero ndikufuna kugawana nanu nkhani:

Zaka khumi zapitazo, zokambirana zazomangamangazinayang'ana pa kuchuluka kwa ndalama zomwe zimafunikira kukonza. Koma masiku ano pali kutsindika kowonjezereka kwa kukhazikika ndi kukhazikika kwa ntchito zomanga kapena kukonza misewu ya dziko, milatho, madoko, ma gridi amagetsi, ndi zina.

Makampani opanga ma kompositi amatha kupereka mayankho okhazikika omwe mayiko aku US akufuna. Ndi ndalama zochulukira, monga momwe zanenedwera mu bilu ya $ 1.2 thililiyoni ya zomangamanga, mabungwe aboma aku US adzakhala ndi ndalama zambiri komanso mwayi woyesera matekinoloje atsopano ndi njira zomangira.

A Greg Nadeau, Wapampando ndi CEO wa Infrastructure Ventures, adati, "Pali zitsanzo zambiri ku United States konse komwe kugwiritsiridwa ntchito kwazinthu zatsopano kwakhala kothandiza, kaya ndi milatho kapena zomanga zolimba. Kukhudzidwa kwakukulu kwa Bridge Infrastructure Act pamwamba pa ndalama zomwe zimagwiritsidwa ntchito nthawi zonse Ndalamayi imapereka mwayi kwa mayiko kugwiritsa ntchito ndalamazi kuti awonjezere kugwiritsa ntchito ndi kumvetsetsa kwa zipangizo zina. Sali oyesera, amatsimikiziridwa kuti akugwira ntchito. ”

Zida zophatikizikazakhala zikugwiritsidwa ntchito pomanga milatho yolimba kwambiri. Milatho ya m'mphepete mwa nyanja ya US ndi kumpoto kwa mayiko omwe amagwiritsa ntchito mchere wamsewu m'nyengo yozizira yawola chifukwa cha dzimbiri zachitsulo mu konkire yolimba komanso nyumba za konkire. Kugwiritsa ntchito zinthu zosawononga zinthu monga nthiti zophatikizika kungachepetse ndalama zimene Dipatimenti Yoona za Mayendedwe ku United States (DOTs) iyenera kuwononga pokonza ndi kukonza mlathowo.

Nadeau anati: “Kaŵirikaŵiri, milatho wamba yokhala ndi moyo wazaka 75 iyenera kusamalidwa bwino m’nyengo ya zaka 40 kapena 50. Kugwiritsa ntchito zinthu zosawononga kutengera zomwe mwasankha kumatha kukulitsa moyo wautumiki ndikuchepetsa moyo wautali. mtengo.”

Palinso ndalama zina zopulumutsa. “Tikanakhala ndi chinthu chimene sichingawononge, konkireyo ikanakhala yosiyana. Mwachitsanzo, sitikanagwiritsa ntchito ma corrosion inhibitors, omwe amawononga ndalama zokwana madola 50 pa kiyubiki imodzi,” adatero Pulofesa wa University of Miami ndi Director of Civil and Architectural Engineering, Antonio Nanni.

Milatho yomangidwa ndi zida zophatikizika imatha kupangidwa ndi zida zowongolera bwino. Ken Sweeney, Purezidenti ndi Principal Engineer of Advanced Infrastructure Technologies (AIT), anati: "Mukagwiritsa ntchito konkire, mumagwiritsa ntchito ndalama zambiri ndi zothandizira kumanga mlathowo kuti ukhale ndi kulemera kwake, osati ntchito yake, kutanthauza kunyamula magalimoto. Ngati mungachepetse kulemera kwake ndikukhala ndi mphamvu zowonjezera kulemera kwa thupi, chimenecho chingakhale chopindulitsa kwambiri: kumanga kungakhale kotsika mtengo.

Chifukwa mipiringidzo yamagulu ndi yopepuka kwambiri kuposa chitsulo, magalimoto ochepera amafunikira kunyamula mipiringidzo (kapena zigawo za mlatho zopangidwa kuchokera ku mipiringidzo yophatikizika) kupita kumalo ogwirira ntchito. Izi zimachepetsa mpweya wa carbon dioxide. Makontrakitala atha kugwiritsa ntchito ma cranes ang'onoang'ono, otsika mtengo kuti akweze zida zamlatho zophatikizika, ndipo ndizosavuta komanso zotetezeka kwa ogwira ntchito yomanga kuti azinyamula.