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杭州钢塑土工格栅土工格栅的类型和应用
土工格栅有很多种，根据其功能和生产方法，一般分为土工织物、土工膜、土工格栅和土工织物四类。下面总结了几种土工格栅的特点和应用。它是我国最早使用的土工织物。目前，我国使用的织造材料有长丝织造和平纹织造两种.聚丙烯是主要材料，单位重量通常为100~300g/m2。其应用主要是用抗滤布制作土工织物袋。机织土工织物具有强度高、伸长率低的特点.广泛应用于防洪抢险、土坡地基加固、大坝加固、各种抗冲工程、大坝软基处理等水利工程中。其缺点是过滤性和水平渗透性差，孔容易变形，孔隙率低，最小孔径为0.05~0.08毫米，难以阻挡<0.Finesoilparticlesbelow0.5mm；Whenthewovenfabricispartiallybrokenorthefiberisbroken，itiseasytocausetheyarntoburstorfalloff，andtheholesthatappeararedifficulttoremedy，sotheapplicationislimitedtoacertainextent。Themethodofproducingwarp-knittedgeotextilesbywarpknittingmachinesisrarelyusedalone，andisoftenusedincombinationwithothermethods，suchasweavingwarp-knittedfabricswithnonwovenfabricstoformweb-typestitch-knittedgeotextiles，orweavingdegradablewarp-knittedgeotextilestogetherwithpapertapes。Warpknittedgeotextilesaremainlyusedindrainageditches，damsorchimneysforfiltration，coastalprotectionwithoutintermediatelayer，blockingartesianwaterpressure，andreinforcingverticalground，inclinedsurfaceandembankmentbase，etc。Nonwovengeotextilesappearlaterthanwovengeotextiles，andtheirproductionmethodsmainlyincludespunbondmethodandneedlingmethod，amongwhichneedlingmethodaccountsforalargerproportioninourcountry。Polyesteristhemainrawmaterial，followedbypolypropyleneandvinylon，withaunitweightof100-800g/m2。Nonwovengeotextileshavelargerelongation，canadapttolargerdeformation，canbemadeintoporeswithappropriatesizesaccordingtoneeds，andhavebetterpermeabilityinbothhorizontalandverticaldirections。Therefore，thedevelopmentspeedofnonwovengeotextilesisveryfastandhasbecomethemaincomponentofgeotextiles。Ithasbeenwidelyusedtosolvetheproblemsofroadbedsubsidenceandmudfallingduetofrostboiling.itisusedinthedrainagesystemofearth-rockfilldams，undergrounddrainagepipelines，reinforcementofweakfoundation，andthefilterlayersofslopeprotectionshoulderpadsofvariousembankments，etc。Inaddition，itcanalsobeusedassoilreinforcingmaterialtoreinforcesoftfoundationorbuildlightretainingwall，andatthesametime，itcanalsoreducetheporewaterpressureunderembankment。
