Nkhani

Geosynthetics ndi mtundu watsopano wa zinthu zaukadaulo za geotechnical, zomwe zimatha kupangidwa ndi ma polima achilengedwe kapena opangidwa ndi anthu (pulasitiki, ulusi wamankhwala, mphira wopangira, ndi zina) ndikuyikidwa mkati, pamwamba kapena pakati pa zigawo zosiyanasiyana za dothi kuti alimbikitse kapena kuteteza nthaka.
Pakalipano, geotextiles akhala akugwiritsidwa ntchito kwambiri m'misewu, njanji, kusunga madzi, mphamvu zamagetsi, zomangamanga, madoko, migodi, makampani ankhondo, kuteteza zachilengedwe ndi zina. Mitundu yayikulu ya geosynthetics imaphatikizapo geotextiles, geogrids, geogrids, geomembranes, geogrids, geo composites, mateti a bentonite, malo otsetsereka, thovu la geo, etc. geo kompositi zipangizo.

Pakadali pano, zopangira za geotextiles ndizopanga ulusi wopangidwa, zomwe zimagwiritsidwa ntchito kwambiri ndi ulusi wa polyester ndi ulusi wa polypropylene, wotsatiridwa ndi ulusi wa polyamide ndi ulusi wa polyvinyl acetal.
Ulusi wa polyester uli ndi zinthu zabwino zakuthupi komanso zamakina, kulimba kwambiri komanso kukwawa, malo osungunuka kwambiri, kukana kutentha kwambiri, kukana kukalamba, ukadaulo wopanga okhwima komanso gawo lalikulu pamsika. Zoyipa zake ndi hydrophobicity yocheperako, yosavuta kusonkhanitsa ma condensate pazida zotenthetsera kutentha, kusagwira bwino kwa kutentha, kosavuta kutulutsa, kuchepetsedwa mphamvu, asidi wosauka komanso kukana kwa alkali.
Ulusi wa polypropylene uli ndi kuthanuka kwabwino, ndipo kusinthasintha kwake pompopompo ndi kulimba kwake kuli bwino kuposa ulusi wa polyester. asidi wabwino ndi kukana kwa alkali, kukana kuvala, kukana mildew ndi kukana kutentha pang'ono; Ili ndi hydrophobicity yabwino komanso kuyamwa kwamadzi, ndipo imatha kusamutsa madzi kumtunda wakunja motsatira ulusi wa fiber. Kachulukidwe ndi kakang'ono, 66% yokha ya polyester fiber. Pambuyo polemba kambirimbiri, ulusi wabwino wa denier wokhala ndi mawonekedwe ophatikizika komanso magwiridwe antchito apamwamba amatha kupezeka, ndiyeno mutatha kulimbitsa, mphamvu yake imatha kukhala yopambana. Choyipa chake ndi kukana kutentha kwambiri, kufewetsa mfundo ya 130 ~ 160 ℃, kukana kuwala kovutirapo, kosavuta kuwola padzuwa, koma zoyezera UV ndi zina zowonjezera zitha kuwonjezedwa kuti zisagonjetse UV.
Kuphatikiza pa ulusi womwe uli pamwambapa, ulusi wa jute, ulusi wa polyethylene, ulusi wa polylactic acid, ndi zina zotere zitha kugwiritsidwa ntchito ngati zida zopangira zinthu zopanda nsalu. Ulusi wachilengedwe ndi ulusi wapadera walowa pang'onopang'ono m'magawo osiyanasiyana ogwiritsira ntchito geotextiles. Mwachitsanzo, ulusi wachilengedwe (jute, coconut shell fiber, nsungwi zamkati, etc.) zakhala zikugwiritsidwa ntchito pochepetsa, ngalande, kuteteza mabanki, kupewa kukokoloka kwa nthaka ndi zina.
Mtundu wa Geotextile
Geotextile ndi mtundu wa geotextile wodutsa wopangidwa ndi ulusi wa polima pokakamiza kutentha, simenti ndi kuluka, komwe kumadziwikanso kuti geotextile, kuphatikiza kuluka ndi zosawoka.
Zopangira zoluka za geotextile zimaphatikizapo kuluka (kuluka mozungulira, kuluka mozungulira), kuluka (kuluka, kuluka), kuluka (kuluka kozungulira, kuluka kwa singano) ndi njira zina zopangira.
Nonwoven geotextiles amaphatikiza njira zopangira monga njira yolimbikitsira makina (njira yopangira makina opangira mano, kuboola madzi), njira yolumikizira mankhwala (njira yopopera mbewu mankhwalawa, njira yolowera), njira yolumikizira yotentha (njira yopukusa yotentha, njira ya mpweya wotentha), ndi zina zambiri.
Woven geotextile ndi geotextile yoyamba kuyambitsidwa, koma ili ndi malire pamtengo wokwera komanso kusachita bwino. Chakumapeto kwa zaka za m'ma 1960, ma geotextiles osalukidwa adayambitsidwa. Kumayambiriro kwa zaka za m'ma 1980, China idayamba kugwiritsa ntchito izi m'mabungwe a engineering. Ndi kutchuka kwa singano zokhomedwa ndi singano ndi spunbonded nonwovens, ntchito ya nonwovens ndi yochulukirapo kuposa ya geotextiles yopunduka, ndipo yakula mwachangu. China yakula kukhala wopanga wamkulu wa Nonwovens padziko lapansi, ndipo pang'onopang'ono ikupita kwa wopanga wamphamvu.
Kusefedwa kwa geotextile, ulimi wothirira, kudzipatula, kulimbikitsa, kuteteza madzi, kupewa matenda, kulemera kwa thupi, kulimba kwamphamvu, kulowa bwino komanso kukana kutentha, kuzizira, kukana kukalamba, kukana dzimbiri, kusinthasintha ndi zina zotero, zimagwiritsidwa ntchito kwambiri m'madera osiyanasiyana. Moyo wa mzinda wochita bwino kwambiri ukuwonetsa kwakanthawi kuti palibe matenda ena.
Chifukwa chiyani ma accounting enieni ayenera kuchitidwa asanamangidwe geotextile? Akatswiri ambiri oyambira samamvetsetsa bwino za ma accounting a geotextiles asanamangidwe. Zimatengera mgwirizano wokonzekera ndi njira yowerengera yomanga. Nthawi zambiri, amawerengedwa molingana ndi dera. Muyenera kulabadira otsetsereka. Muyenera kuchulukitsa ndi koyefithi yotsetsereka.