Zopangira zathu zolimbikitsira zomwe zimagwiritsidwa ntchito pomanga milatho pamtsinje wa Ili

Ili River Bridge ndi pulojekiti yayikulu komanso yovuta ya gawo la National Highway G218, lomwe lili ndi kutalika kwa 2360m, lomwe ndi la pamwamba pa chingwe chimodzi, mizere iwiri ya mlatho wawufupi wokhala ndi chingwe.

Chiyambireni ntchito yomangayi mu Ogasiti 2021, yakopa chidwi cha anthu wamba. Pokhala ndi kutentha kwakukulu kwa 42.8 ° C ndi kutentha kochepa kwambiri kwa -51.0 ° C chaka chilichonse, nyengo ikuwotha mu nyengo yabwino kotero kuti omanga polojekitiyo apanga ndi kumanga kuti atsimikizire kuti kutsegulidwa kwa magalimoto bwino kumapeto kwa chaka.

Zingwe zokhala ndi chingwe zimakhala ndi nkhope imodzi, mizere iwiri yokonzedwa pagawo lapakati, ndipo mlatho wonse umagwiritsa ntchito ma 4 × 8 awiriawiri a zingwe zokhala ndi chingwe.

Kutalikirana kwakutali pa chotchingira chokhala ndi chingwe ndi 5m, motalikirana pakati pa mizere iwiri yopingasa ndi 1.0m, ndipo molunjika pansanjayo ndi 1.2m.

Njira yozikika ya chingwe chokhazikika pansanjayo imatenga njira yolumikizira chingwe chachitsulo chokhazikika pansanja kudzera pa chitoliro chachitsulo chomangika (chishalo).

Kapangidwe kake ndi kugwiritsa ntchito welded mitolo waya akuwaza mipope zitsulo, ndi aliyense mtolo wa zingwe zitsulo ndi waya kugawanika mipope zitsulo zimagwirizana mmodzimmodzi kudzera chingwe nsanja.

PE yoteteza ya gawo lolumikizana pakati pa chingwe chachitsulo ndi chitoliro chachitsulo cha mtolo sichiyenera kupukuta, ndipo chingwe chachitsulo chokha cha PE chomwe chili m'manja mwa doko lachishalo chimavulidwa ndikutsanuliridwa ndi chipika cha epoxy mortar resistance kuti chitetezeke. wa chingwe chachitsulo pansi pa mphamvu ya chingwe chosayenerera.

Chingwe chokhala ndi chingwe chimapangidwa ndi chingwe chachitsulo cha epoxy, ndipo kutalika kwa chingwe chimodzi ndi 15.2mm. Mphamvu yokhazikika ya chingwe chachitsulo ndi fpk = 1860MPa, zotanuka modulus: E = (1.95 ± 0.1) × 105 Mpa, ndipo magwiridwe antchito achitsulo amakwaniritsa zofunikira za "Filled Epoxy Coated Steel Stranded Cable for Bridges" (JT/T1063-2016).

Nangula yokhala ndi chingwe imatenga njira yosinthika ya gulu la nangula, ndipo chingwe chokhala ndi chingwe, nangula, chivundikiro choteteza, anchor backing plate ma bolts amphamvu kwambiri ndi zida zothandizira zimaperekedwa.

Kugwira ntchito kwa chingwe chofananira cha HDPE, cholumikizira cha nangula, chishalo cha chingwe, cholumikizira chingwe, cholumikizira chingwe ndi zinthu zotsutsana ndi dzimbiri za chingwecho zimakwaniritsa zofunikira za "Filled Epoxy Coated Steel Stranded Cable for Bridges" (JT/ T 1063-2016).

Chingwe chokhala ndi chingwe chimangiriridwa ndikumangika pamtengo waukulu, pomwe chipika choletsa kutsetsereka chimakonzedwa kumapeto kwa chishalo cha chingwe pansanjayo, ndipo kutseka kwa chipangizo cha anti-slip anchoring kuyenera kumalizidwa mu mlatho. -kupanga siteji momwe ndingathere.

Komabe, poganizira mphamvu yosakhazikika ya chingwe chokhala ndi chingwe pomanga, gawo lotsekera liyenera kutsimikiziridwa molingana ndi mayeso oletsa kutsetsereka komanso zotsatira zowerengera zowerengera za chingwe chokhazikika pa chingwe chokhazikika pa chitoliro cha waya. nsanja, kuti apewe kutsetsereka kwa chingwe chokhazikika pansanjayo chifukwa cha kusiyana kwa mphamvu ya chingwe.