Geogrid daws teeb meem Pavement li cas?
Geogrid yog cov khoom siv geosynthetic loj. Piv nrog rau lwm qhov geosynthetics, nws muaj qhov ua tau zoo thiab ua tau zoo. Nws yog feem ntau siv los ua kev txhawb nqa ntawm cov qauv av los yog kev txhawb nqa cov khoom sib xyaw. Geogrid tau muab faib ua plaub pawg: yas geogrid, yas-yas geogrid, iav fiber ntau geogrid thiab polyester warp-knitted polyester geogrid. Daim phiaj yog daim phiaj ob-seem lossis daim duab peb-seem uas muaj qhov siab tshwj xeeb, uas yog ua los ntawm polypropylene, polyvinyl chloride thiab lwm yam polymers siab molecular los ntawm cov thermoplastic lossis moulding. Thaum siv hauv kev tsim vaj tsev, nws hu ua geotechnical engineering.
Cement qhob pavement vim tsis zoo rigidity thiab deformability, ib pawg hauv zos tsis sib haum sib hloov, hloov kev nyuab siab lub xeev thiab nws cov haujlwm kev ua haujlwm, ua rau muaj kev ntxhov siab sab hauv ntawm cov qhob thaiv, ua rau cov pob zeb ua puas thiab txo lub neej ntawm cov pob zeb ua ke.
Yuav ua li cas thiaj daws tau qhov teeb meem no ntau qhov kev puas tsuaj rau nws? Cov yam ntxwv zoo ntawm geogrid thiab kev kho tshwj xeeb saum npoo, peb qhov cuam tshuam. Ua ntej, tso lub geogrid txhim kho lub zog tag nrho ntawm lub hauv paus ntawm cov kua qaub av ntawm qhov chaw ntawm lub hauv paus. Tom qab ntawd tsuag ib txheej ntawm hydrothermal asphalt hnyav roj (roj lossis txheej txheej), uas tuaj yeem tiv thaiv dej nag cov kua qaub av yaig rau saum npoo ntawm txheej txheej, yog li ua kom lub neej ntawm cov kua qaub hauv paus. Qhov thib ob, geogrid tuaj yeem tiv thaiv kev tawg vim qhov nkees ntawm cov hauv paus hauv av, thiab cov tawg tawg tshwm sim los ntawm qhov kub thiab txias me me ntawm cov pob zeb tawg tawg tawg ua rau los ntawm kev xav tawg.
Geogrid cov cuab yeej siv tau tuaj yeem siv ua cov pob zeb txhawb ntxiv los ua tus tswv cuab txhawb nqa, thiab txoj kev tsheb nqaj hlau thauj khoom tuaj yeem nthuav tawm tusyees kom tiv thaiv kev tawg tawg, yog li ua kom lub neej ntawm txoj kev pob zeb ua ke.