Cov yam tseem ceeb cuam tshuam rau cov kav dej board Thickness
1. Khoom siv:
- HDPE Drainage Board: Feem ntau siv thickness 0.8mm-2.0mm, siab compressive zog (Ntau dua los yog sib npaug rau 250kPa), haum rau cov haujlwm hnyav (xws li chaw nres tsheb, tshav dav hlau khiav).
- PVC Drainage Board: Thickness 0.5mm-1.5mm, zoo yooj, tab sis qis compressive zog (Ntau tshaj los yog sib npaug rau 150kPa), feem ntau yog siv nyob rau hauv lub teeb-duty scenarios xws li ru tsev ntsuab.
- Daim Ntawv Qhia Txog: "Plastic Drainage Board" (JT/T 521-2022) qhia txog cov thickness kam rau ua (± 0.1mm) rau cov khoom sib txawv.
2. Engineering Load Requirements:
- Thickness yog ncaj qha ntsig txog compressive zog. Piv txwv li, 1.0mm tuab HDPE board tuaj yeem tiv taus 300kPa siab, thaum lub rooj tsavxwm 2.0mm tuab tuaj yeem tiv taus 600kPa (Cov ntaub ntawv qhov chaw: GB / T 19472.1-2004).
- Rau cov xwm txheej xav tau cov av npog ntawm 1.5m lossis ntau dua, xws li cov ru tsev hauv qab daus, qhov tuab ntawm Ntau dua lossis sib npaug li 1.5mm yog pom zoo; rau txoj kev hauv paus dej, 1.2mm-1.8mm yog haum.
Daim Ntawv Thov Kev Qhia Txog Kev Xaiv Thickness
1. Lub Tsev Dej Dej:
- Ru Tsev Dej: Cov vaj huam sib luag nyias (0.5mm-1.0mm) txaus, yuav tsum muaj cov txheej lim dej tsis-woven.
- Underground Engineering: Thickness Ntau dua lossis sib npaug li 1.2mm, thiab ntev - lub sij hawm creep kev ua tau zoo yuav tsum raug txheeb xyuas (saib "Technical Specification for Waterproofing of Underground Engineering" GB 50108-2008).
2. Kev hloov pauv ib puag ncig tshwj xeeb:
- Siab-Altitude Cold Regions: Ua kom tuab (piv txwv li, Ntau dua lossis sib npaug li 2.0mm) yuav tsum tau tiv thaiv qis -kub brittleness.
- Chemically Corrosive Environments: Siv cov tuab HDPE (Ntau dua lossis sib npaug li 1.8mm) thiab kuaj cov kua qaub thiab alkali tsis kam.
Common Misconceptions thiab Professional Advice
1. Kev ntseeg yuam kev:"Qhov thicker qhov zoo" yuav ua rau cov nqi khib nyiab. Hauv kev xyaum, cov kua dej muaj peev xwm (piv txwv li, qhov pore loj) thiab cov qauv kev ruaj ntseg yuav tsum tau txiav txim siab.
2. Txoj Kev Xeem:Ntsuas siv lub micrometer, nrog rau qhov sib txawv ntawm ± 5% (raws li JT / T 521-2022).
3. Pom zoo sib xyaws:
- Lub teeb-Load landscaping: 0.8mm PVC board + 200g/m² non- ntaub ntaub.
- Hnyav-load tsheb: 1.5mm HDPE board + 300g/m² geotextile.
