Xov xwm

Geosynthetics yog ib hom tshiab ntawm geotechnical engineering khoom, uas tuaj yeem ua los ntawm ntuj lossis tib neeg tsim cov polymers (yas, chemical fiber, hluavtaws roj hmab, thiab lwm yam) thiab muab tso rau hauv, ntawm qhov chaw lossis nruab nrab ntawm cov av sib txawv los tiv thaiv cov av.
Tam sim no, Geotextiles tau siv dav hauv txoj kev, kev tsheb ciav hlau, kev txuag dej, hluav taws xob, kev tsim kho, seaports, mines, tub rog kev lag luam, kev tiv thaiv ib puag ncig thiab lwm yam.Lub ntsiab ntau yam ntawm geosynthetics muaj xws li geotextiles, geogrids, geogrids, geomembranes, geogrids, geo composites, bentonite mats, geological slopes, geo ua npuas ncauj, thiab lwm yam nyob rau hauv engineering daim ntaub ntawv, Geotextiles yuav siv tau ib leeg los yog ua ke nrog geogrids, geomege lwm yam. Geo Composite cov ntaub ntawv.

Tam sim no, cov ntaub ntawv raw ntawm geotextiles feem ntau yog cov hluavtaws fibers, feem ntau siv yog polyester fibers thiab polypropylene fibers, ua raws li polyamide fibers thiab polyvinyl acetal fibers.
Polyester fiber ntau muaj lub cev zoo thiab txhua yam khoom, zoo heev toughness thiab creep zog, siab melting point, kub tsis kam, aging kuj, mature ntau lawm technology thiab siab ua lag luam.Qhov tsis zoo yog cov dej tsis zoo, yooj yim rau khaws cov condensate rau cov ntaub ntawv thermal rwb thaiv tsev, ua haujlwm tsis zoo ntawm qhov kub thiab txias, yooj yim rau vitrify, txo lub zog, tsis zoo acid thiab alkali tsis kam.
Polypropylene fiber ntau muaj elasticity zoo, thiab nws instant elasticity thiab resilience yog zoo dua li polyester fiber.Zoo acid thiab alkali tsis kam, hnav tsis kam, mildew kuj thiab kub tsis kam;Nws muaj hydrophobicity zoo thiab nqus dej, thiab tuaj yeem hloov dej mus rau sab nrauv raws li cov axis fiber ntau.Qhov ceev yog me me, tsuas yog 66% ntawm polyester fiber.Tom qab ntau lub sij hawm ntawm kev sau ntawv, nplua denier fiber ntau nrog cov qauv compact thiab kev ua tau zoo dua tuaj yeem tau txais, thiab tom qab ntawd tom qab kev txhim kho, nws lub zog tuaj yeem ua tau zoo dua.Qhov tsis zoo yog qhov kub thiab txias tsis kam, qhov muag muag ntawm 130 ~ 160 ℃, tsis zoo lub teeb tsis kam, yooj yim rau decompose nyob rau hauv lub hnub, tab sis UV absorbers thiab lwm yam additives yuav muab ntxiv kom nws UV resistant.
Ntxiv rau cov fibers saum toj no, jute fibers, polyethylene fibers, polylactic acid fibers, thiab lwm yam kuj tuaj yeem siv los ua cov khoom siv raw rau nonwoven geotextiles.Ntuj fibers thiab tshwj xeeb fibers tau maj nkag mus rau ntau yam daim ntawv thov teb ntawm geotextiles.Piv txwv li, ntuj fibers (jute, txiv maj phaub plhaub fiber, xyoob pulp fiber, thiab lwm yam) tau siv nyob rau hauv subgrade, kua, bank tiv thaiv, av yaig tiv thaiv thiab lwm yam teb.
Hom Geotextile
Geotextile yog ib hom permeable geotextile ua los ntawm polymer fibers los ntawm kub nias, cementation thiab weaving, tseem hu ua geotextile, suav nrog weaving thiab nonwovens.
Geotextile knitted khoom muaj xws li knitting (dawb weave, round weave), knitting (dawb weave, twill), knitting (warp knitting, koob knitting) thiab lwm yam ntau lawm txheej txheem.
Nonwoven geotextiles suav nrog cov txheej txheem tsim khoom xws li cov txheej txheem kho tshuab (txoj kev acupuncture, dej tho txoj kev), tshuaj sib txuas txoj kev (kav tshuaj txau txoj kev, txoj kev impregnation), kub yaj txoj kev sib txuas (kub dov txoj kev, cua kub txoj kev), thiab lwm yam.
Woven geotextile yog thawj zaug qhia geotextile, tab sis nws muaj cov kev txwv ntawm tus nqi siab thiab kev ua haujlwm tsis zoo.Thaum xyoo 1960s, cov khoom siv tsis-woven geotextiles tau qhia.Thaum xyoo 1980s, Tuam Tshoj pib siv cov khoom no hauv cov koom haum engineering.Nrog rau qhov muaj koob meej ntawm koob punched nonwovens thiab spunbonded nonwovens, daim ntawv thov teb ntawm nonwovens yog ntau dua li ntawm deformed geotextiles, thiab tau tsim sai heev.Tuam Tshoj tau tsim los ua tus tsim khoom loj ntawm Nonwovens hauv ntiaj teb, thiab maj mam txav mus rau cov neeg tsim khoom muaj zog.
Geotextile filtration, irrigation, kev sib cais, kev txhawb zog, seepage tiv thaiv, tiv thaiv kab mob, lub teeb yuag, siab tensile zog, zoo nkag mus thiab tsis kub tsis kam, txias tsis kam, laus kuj, corrosion kuj, yooj thiab lwm yam, yog dav siv nyob rau hauv ntau yam teb.Lub neej ntawm kev ua haujlwm zoo hauv nroog loj ib ntus qhia tau hais tias tsis muaj lwm txoj kev kis kab mob.
Vim li cas thiaj li yuav tsum tau ua kom tau nyiaj tshwj xeeb ua ntej kev tsim kho geotextile?Ntau tus kws tshaj lij novice tsis paub meej txog qhov tshwj xeeb accounting ntawm geotextiles ua ntej kev tsim kho.Nws nyob ntawm daim ntawv cog lus cog lus thiab kev tsim kho txoj kev hais lus.Feem ntau, nws yog xam raws li cheeb tsam.Koj yuav tsum tau them sai sai rau txoj kab nqes.Koj yuav tsum muab nws los ntawm txoj kab nqes coefficient.