Nkhani

1, Asphalt impregnation mankhwala pamwamba pa zomatira zovuta za geogrid
Pamwamba pa geogrid ndi zomatira zomatira zomata kuti ziwongolere geogrid. Zomatira zomatira zodzimatira zomata pamwamba pa geogrid ndiye maziko a geosynthetic a geogrid. Poyerekeza ndi ma geosynthetics ena, HDPE geomembrane imawonetsa kutsimikizika kwake komanso mphamvu zake. Geogrid nthawi zambiri imagwiritsidwa ntchito ngati zida zolimbikitsira zomangira nthaka kapena zinthu zolimbikitsira zopangidwa ndi aluminium alloy geotextile wopanga.

Geogrid imagawidwa m'magulu anayi: geogrid ya pulasitiki, geogrid yachitsulo-pulasitiki, geogrid ya galasi ndi fiber polyester geogrid. Pulasitiki geogrid ndi chinthu chopangidwa ndi ma rectangular kapena rectangular polima network yopangidwa ndi kumeta kopitilira muyeso. Malinga ndi kugwirizana kwa malangizo extrusion pa ndondomeko kukopera, akhoza kugawidwa mu mitundu iwiri: njira imodzi kukameta ubweya ndi njira ziwiri extrusion.
Ndikoboola mabowo pa mbale zina za polima zomwe zimakhudzidwa ndi kutulutsa, ndikukankhira kutsogolo komwe kumatambasulira chifukwa chakuzizira. Pamene ming'alu ya geotextile ikufika pa 10% ya kukula kwa mpukutuwo, tiyenera kugwiritsa ntchito gawo lomwe lawonongeka, ndikugwirizanitsa mafunde awiri a dziko lapansi. Kuonjezera apo, ngati kusiyana pamtunda wotsetsereka kufika pa 10% ya kukula kwa mpukutuwo, mpukutu wa geotextile uyenera kuchotsedwa ndikusinthidwa ndi mpukutu watsopano. Zida zokutira zomwe zimagwiritsidwa ntchito ndi wopanga geogrid geomembrane pambuyo pochiza zimayang'aniridwa ndi wopanga zinthu zopangidwa ndi asphalt.
Chingwe chilichonse chimakutidwa ndipo chimagwirizana kwathunthu ndi phula, kuti zitsimikizire kuti galasi la fiber geogrid mu phula la asphalt silidzadulidwa kuchokera kuzinthu zamagulu a asphalt, koma kuphatikizidwa mwamphamvu. Geogrid iyenera kuyikidwa pagawo laling'ono laling'ono molingana ndi kukula kwa zofunkha zomwe zakonzedwa. Chodzaza chapamwamba chapansi sichidzaboola zinyalala za geogrid. Pamene geogrid imayikidwa, mphepo yamkuntho imakhala yokwera kwambiri kuti idutse pakati pa mpanda. Geogrid imayikidwa motalika. Kuyikako kumangidwe kuti zisakwinyane, kupindika kapena kupindika.
Geogrid imalumikizidwa mopingasa ndi njira yodutsana, ndipo kukula kwake sikupitilira 20cm. Pambuyo poyika geogrid, kuyika kwa choyikapo chapamwamba kumayenera kumalizidwa nthawi yomweyo kuti asatengeke ndi dzuwa chaka chonse. Ndiye kuchita mawotchi zinthu zoyendera, kusanja ndi anagubuduza. Kuyika kwa makina ndi kugubuduza kumachitika kuchokera kumbali zonse mpaka mbali zonse ziwiri, ndipo kugubuduza kumachitika kuchokera kumbali zonse kupita ku mbali zonse, ndipo compactness imasungidwa kuti ikwaniritse kuchotseratu.
2, Geogrid ali ndi mphamvu zolimba zachitsulo chofatsa
Geogrid imakonzanso mamolekyu atalitali a hydrocarbon a polima molunjika motsatira njira yotambasula kudzera munjira yapadera yaukadaulo. Mphamvu yomangiriza pakati pa maunyolo a molekyulu imalimbikitsidwa kwambiri, motero imakhala ndi mphamvu zolimba kwambiri komanso kutalika kwapansi. Mwachitsanzo, mphamvu yothamanga ndi 5-10 nthawi zambiri kuposa isanayambe kutambasula, ndipo elongation ndi 10% - 15% yokha kuposa isanayambe kutambasula. Mphamvu yolumikizirana ya tinthu tating'onoting'ono mu gridi imawonjezeka, ndipo kugundana kwamphamvu kumawonjezeka kwambiri. Zinganenedwe kuti pakati pa ma geosynthetics ambiri, mphamvu yamagetsi ya geogrid ndipamwamba kwambiri pansi pa zovuta zomwezo, ndipo mphamvu zake zokhazikika zimakhala pafupi ndi zitsulo zofewa. Kuphatikiza pa kulimba kwake kolimba, geogrid imakhalanso ndi kukhazikika bwino, chifukwa zinthu za geogrid zimapangidwa ndi polyethylene kapena pulasitiki ya polypropylene monga zida zazikulu zopangira, ndipo zimakhala ndi zowonjezera zotsutsana ndi ukalamba monga UV ndi kaboni wakuda, zomwe zimatha kuteteza kukokoloka kwa zosungunulira organic monga asidi, alkali, mchere, mowa, mafuta ndi UV. Malinga ndi deta yoyenera, moyo wautumiki wa geogrid wopangidwa ndi opanga geogrid ukhoza kufika zaka 120 pansi pa kutentha kwabwino komanso kapangidwe ka katundu wovomerezeka. Inde, chifukwa chomwe ma geogrids amagwiritsidwa ntchito kwambiri ndikuti ma geogrids omwe afotokozedwa pansipa ali ndi mawonekedwe abwino kwambiri. Mu pulojekiti yokongoletsa malo otsetsereka, geocell wa pulasitiki wopanga geogrid, geocell akatalikitsidwa ndikutsegulidwa, amapereka chisa cha zisa zitatu-dimensional geocell, ndikudzaza geocell ndi nthaka ndi miyala kapena zida za konkriti kuti apange chomanga cholimba chakumbuyo komanso kuuma kwakukulu kuti apange mphamvu yokhazikika pamtunda. Ikhozanso kulima zomera, kapena zitsamba zazing'ono ndi zomera zina mu geogrid, kupanga galasi losiyana ndi galasi fiber ndilo chinthu chachikulu cha geosynthetic, chomwe chili ndi ntchito yofanana ndi zotsatira poyerekeza ndi zipangizo zina za geosynthetic. Galasi ya fiber grid nthawi zambiri imagwiritsidwa ntchito ngati kulimbikitsa dothi lolimba kapena zida zophatikizika