Kudzipatula kumatanthauza kuyika kwa geosynthetics pakati pa ma geomaterials awiri osiyanasiyana kuti asasakanizike. Ma geotextiles ndiye maziko oyambira osungira. Ntchito zazikulu ndikugwiritsa ntchito ukadaulo wa geotextile isolation ndi izi:
(1) Pantchito yocheperako njanji, geotextile imayikidwa pakati pa ballast ndi dothi la maziko abwino; Kuyika kwa geotextile pakati pa msewu wozungulira-grained ndi nthaka yofewa yodzaza maziko ndi njira yodzipatula ya geotextile.
(2) Mu uinjiniya wa misewu yayikulu, ma geotextiles amayikidwa pakati pa nsanja ya miyala ndi maziko a nthaka yofewa, kapena pakati pamiyala ya ngalande ndi maziko odzaza kuti apewe kusakanikirana kwa dothi lolimba komanso labwino ndikuwonetsetsa makulidwe a nthaka yolimba. -grained zakuthupi wosanjikiza. ndi magwiridwe antchito.
(3) M'madera omwe ali ndi madzi ochuluka a pansi pa nthaka, teknoloji ya geotextile isolation ndi njira yabwino yothetsera kusakaniza matope pamsewu ndi njanji.
(4) Kuyika geotextile pansi pa khushoni pakati pa nyumbayo kapena kapangidwe ndi maziko a nthaka yofewa kumatha kutenga gawo la kudzipatula kwa seismic.
(5) Chotchinga chamadzi cha geotextile chimatha kuletsa njira yamadzi ya capillary. M'madera ena okhala ndi madzi ochuluka, angagwiritsidwe ntchito poletsa mchere wa dothi kapena maziko a chisanu.
Ma geotextiles akagwiritsidwa ntchito popanga seismic kudzipatula, si vuto losavuta "kudzipatula". Kuchokera pagawo lomwe latchulidwa pamwambapa la geotextile isolation layer, limakhudzanso ntchito zosefera m'mbuyo, kukhetsa madzi ndi kulimbikitsa ma geotextiles pakugwiritsa ntchito uinjiniya. Chifukwa chake, mukamagwiritsa ntchito ukadaulo wa geotextile isolation, ndikofunikira kusanthula mikhalidwe yaumisiri kuchokera kuzinthu zambiri. Kuphatikiza pa mawonekedwe akuthupi komanso amakina a geotextile, ndikofunikiranso kulingalira ngati geotextile ili ndi kufunikira kosinthira ndikusefera.
Zida zina zomwe zimagwiritsidwa ntchito kwambiri ndi geomembrane, composite geotextile, composite geomembrane, polyurethane ndi polyurea new geotextile isolation layer, etc. Geotextiles olimbikitsidwa ndi nsalu, nonwoven kapena nsalu amatchedwa composite geotextiles. Ndi geotextile yopangidwa ndi zida ziwiri kapena zingapo kapena njira. Sikuti amangosunga ubwino wa zinthu zosanjikiza limodzi asanaphatikizepo, komanso zimapanga zofooka zake mosiyanasiyana. Ikagwiritsidwa ntchito, zigawo zake zimatha kupereka kusewera kwathunthu ku zabwino zantchito zowonjezera, ndipo zimatha kukwaniritsa zofunikira za polojekitiyo.
Kukula kwachangu kwa zida za polima kwayala maziko a kutulukira kwa zida zatsopano zodzipatula zachitukuko cha Civil engineering. Polyurethane polima zakuthupi ndi polima wokhala ndi magulu a urethane pa unyolo waukulu wa molekyulu. Polima yotchinga yomwe unyolo wake wa mamolekyulu uli ndi gawo lofewa komanso gawo lolimba lapakati. Elastomer yopangidwa ndi zinthu za polyurethane yokhala ndi ma rheological katundu pambuyo pochiritsa imakhala ndi luso lolumikizana bwino, lolumikizana komanso losapindika, ndipo mphamvu yake yopondereza ndi yayikulu komanso yosinthika. Polyurea ndi polima zakuthupi zopangidwa ndi zomwe isocyanate chigawo chimodzi ndi amino pawiri chigawo chimodzi. Zinthuzi ndi za hydrophobic kwambiri komanso sizimva chinyezi chozungulira. Ikhoza ngakhale kupopera madzi kuti ipange filimu. Itha kugwira ntchito nthawi zambiri pamikhalidwe yovuta kwambiri. Choncho, polyurethane ndi polyurea akhala mtundu watsopano wa zinthu chotchinga pochiza misewu yatsopano ndi matenda roadbed.
Nthawi yotumiza: Mar-10-2022