Muaj peb lub ntsiab lus tseem ceeb ntawm geotextiles:
1. Koob-punched non-woven geotextile
Raws li cov khoom siv, cov geotextiles uas muaj koob punched tsis-woven tuaj yeem muab faib ua polyester geotextiles thiab polypropylene geotextiles; lawv kuj tuaj yeem muab faib ua cov geotextiles ntev fiber thiab cov geotextiles luv luv. Cov geotextile uas muaj koob punched tsis-woven yog ua los ntawm polyester lossis polypropylene fiber los ntawm txoj kev acupuncture, qhov kev qhia tshwj xeeb feem ntau yog 100g / m2-1500g / m2, thiab lub hom phiaj tseem ceeb yog kev tiv thaiv ntawm tus dej, hiav txwv, thiab pas dej embankment, kev tswj dej nyab thiab kev cawm neeg thaum muaj xwm txheej ceev, thiab lwm yam. Cov no yog cov hauv kev zoo los tswj dej thiab av thiab tiv thaiv cov kav dej los ntawm kev lim dej rov qab. Cov geotextiles luv luv feem ntau suav nrog polyester koob punched geotextiles thiab polypropylene koob punched geotextiles, ob qho tib si yog cov geotextiles tsis-woven. Lawv tau ua cim los ntawm kev ywj pheej zoo, acid thiab alkali tsis kam, corrosion tsis kam, laus tsis kam, thiab kev tsim kho yooj yim. Cov geotextiles ntev fiber muaj qhov dav ntawm 1-7m thiab qhov hnyav ntawm 100-800g / ㎡; lawv yog ua los ntawm cov polypropylene lossis polyester ntev fiber filaments, tsim nrog cov txheej txheem tshwj xeeb, thiab hnav-resistant, tawg-resistant, thiab nrog lub zog tensile siab.
2. Cov ntaub ntawv geotextile sib xyaw (Cov ntaub tsis-woven uas muaj koob punched + zaj duab xis PE)
Cov ntaub sib xyaw ua ke yog ua los ntawm kev sib xyaw ua ke ntawm cov ntaub polyester luv luv uas tsis yog ntaub thiab cov yeeb yaj kiab PE, thiab feem ntau muab faib ua: "ib daim ntaub + ib zaj duab xis" thiab "ob daim ntaub thiab ib zaj duab xis". Lub hom phiaj tseem ceeb ntawm cov ntaub sib xyaw ua ke yog tiv thaiv kev seepage, tsim nyog rau kev tsheb ciav hlau, txoj kev loj, qhov av, av hauv av, tshav dav hlau, thiab lwm yam haujlwm.
3. Cov ntaub tsis-woven thiab woven composite geotextiles
Hom geotextile no yog ua los ntawm cov ntaub tsis-woven uas muaj koob thiab cov ntaub yas. Nws feem ntau yog siv rau kev txhawb nqa lub hauv paus thiab cov chaw tsim kho yooj yim rau kev kho cov coefficient permeability.
Lub sijhawm tshaj tawm: Lub Ib Hlis-09-2023