Nkhani

1. Kukonza misewu yodzaza theka ndi theka lakukumba
Pomanga mapiri otsetsereka okhala ndi malo otsetsereka ochulukirapo kuposa 1: 5 pansi, masitepe ayenera kukumbidwa m'munsi mwa mpanda, ndipo m'lifupi masitepewo sayenera kuchepera 1 mita. Pomanga kapena kukonzanso misewu ikuluikulu pang'onopang'ono ndi kukulitsa, masitepe ayenera kukumbidwa pamphambano ya mpanda watsopano ndi wakale wodzaza mitsetse. Kutalika kwa masitepe m'misewu yayikulu nthawi zambiri kumakhala 2 metres. Ma geogrid akuyenera kuyikidwa pamtunda wopingasa wa masitepe aliwonse, ndipo zowongoka zakumbali zolimbitsa ma geogrids ziyenera kugwiritsidwa ntchito kuthetsa vuto la kukhazikika kosagwirizana.

2. Misewu m'malo amphepo ndi amchenga
Msewu m'malo amphepo ndi mchenga uyenera kukhala ndi mizati yotsika, yokhala ndi utali wodzaza nthawi zambiri osachepera 0.3M. Chifukwa chaukadaulo wofunikira pamipanda yocheperako komanso kunyamula katundu wolemetsa pomanga ming'alu m'malo amphepo ndi mchenga, kugwiritsa ntchito ma geogrids kumatha kukhala ndi zotsatira zotsekera pamizere yotayirira, kuwonetsetsa kuti msewuwo uli ndi kuuma kwakukulu ndi mphamvu mkati mwa kutalika kochepa. kupirira kupsinjika kwa katundu wa magalimoto akuluakulu.
3. Kulimbitsa dothi lodzaza kumbuyo kwa mpanda
Kugwiritsa ntchitozipinda za geogridakhoza kukwaniritsa bwino cholinga kulimbikitsa kumbuyo kwa mlatho. Chipinda cha geogrid chikhoza kupanga kukangana kokwanira pakati pa zinthu zodzaza, kuchepetsa kukhazikika kosafanana pakati pa msewu ndi kapangidwe kake, kuti muchepetse kuwonongeka koyambilira kwa matenda a "bridge abutment abutment" pampando wa mlatho.

4. Chithandizo cha Loess Collapse Roadbed
Pamene misewu ikuluikulu ndi misewu yayikulu idutsa m'zigawo zotayika komanso zotayika bwino, kapena pamene mphamvu yololeka ya maziko a misewu yayikulu imakhala yotsika kuposa kukakamiza kwa magalimoto ogwirizana komanso kulemera kwake, msewuwo uyeneranso kusamalidwa molingana ndi zonyamula katundu zofunika. Panthawi imeneyi, kuchuluka kwa shugageogridzikuwonetsedwa mosakayika.
5. Dothi la mchere ndi nthaka yotakasuka
Msewu waukulu womangidwa ndi dothi la mchere komanso nthaka yotakasuka umatengera njira zolimbikitsira mapewa ndi otsetsereka. Mphamvu yolimbitsa mphamvu ya gululi ndiyabwino kwambiri pakati pa zida zonse zolimbikitsira, ndipo imakhala ndi kukana kwa dzimbiri, komwe kumatha kukwaniritsa zofunikira popanga misewu yayikulu mu dothi lamchere ndi dothi lotambasuka.