Chitsulo pulasitiki kuwotcherera geogrid ndi mphamvu zonyamulira mphamvu pa msewu njanji chapansi pa ngalande yotsetsereka

Zambiri Zamalonda
Fiberglass geogrid ndi chinthu chabwino kwambiri cha geosynthetic chomwe chimagwiritsidwa ntchito kulimbitsa misewu, kulimbitsa misewu yakale, kulimbikitsa misewu ndi nthaka yofewa. Fiberglass geogrid ndi chinthu chosasunthika chopangidwa ndi galasi lamphamvu kwambiri la alkali-free fiberglass kudzera m'njira zapadziko lonse lapansi zoluka za warp ndikukutidwa ndi chithandizo chapamwamba. Ili ndi mphamvu zolimba kwambiri komanso kutalika kocheperako m'mbali zonse ziwiri zokhotakhota komanso zokhotakhota, ndipo imakhala ndi zinthu zabwino kwambiri zolimbana ndi kutentha kwambiri, kuzizira kochepa, kukana kukalamba, kukana dzimbiri, ndi zina zambiri. Amagwiritsidwa ntchito kwambiri popanga phula, misewu ya simenti ndi kulimbitsa misewu komanso msewu wa njanji, kuteteza malo otsetsereka madamu, njanji ya ndege, kuwongolera mchenga ndi ntchito zina zaumisiri.

Chigawo chachikulu cha fiberglass ndi: silicon oxide, ndi inorganic materials, katundu wake wakuthupi ndi mankhwala ndi okhazikika kwambiri, ndipo ali ndi modulus yapamwamba, kukana kuvala ndi kukana kwambiri kuzizira, osakwera nthawi yaitali; kukhazikika kwamafuta abwino; mauna kapangidwe kuti akaphatikiza ophatikizidwa loko ndi malire; onjezerani mphamvu yonyamula katundu wa osakaniza a asphalt. Chifukwa chakuti pamwamba pake amakutidwa ndi phula lapadera losinthidwa, limakhala ndi zinthu ziwiri, zonse zabwino kwambiri za fiberglass komanso kusakanikirana ndi phula, zomwe zimathandizira kukana kwa abrasion ndi kukana kukameta ubweya wa geogrid.

Mawonekedwe a zinthu za fiberglass geogrid
mankhwala ali ndi mphamvu mkulu, otsika elongation, mkulu kutentha kukana, modulus mkulu, kulemera kuwala, toughness zabwino, kukana dzimbiri, moyo wautali, etc. Iwo angagwiritsidwe ntchito ankagwiritsa akale simenti msewu, ndege yokonza ndege kukonza, mpanda, mtsinje mtsinje, Chitetezo cha malo otsetsereka, chithandizo chowongolera misewu ndi mlatho ndi magawo ena a uinjiniya, omwe amatha kupititsa patsogolo mayendedwe, kulimbitsa, kupewa kugwa kwapamsewu, kutenthetsa ndi kufalikira kwa kuzizira ndi kung'ung'udza m'munsimu, ndipo Kubalalika kumatha, kutalikitsa moyo wautumiki wapamsewu, kutsika kwamphamvu kwamphamvu, kutsika kwanthawi yayitali, kusasunthika kwanthawi yayitali, kukhazikika kwathupi ndi mankhwala, kukhazikika kwamatenthedwe, kukana kutopa, kukana kwamphamvu, kutentha kwapang'onopang'ono. , kutsika kwa kutentha kwa shrinkage kusweka, kuchedwa kuchepetsa ming'alu yowonetsera.

Njira yomanga ya fiberglass geogrid
(1) Choyamba, molondola anaika otsetsereka mzere wa roadbed, pofuna kuonetsetsa m'lifupi mwa roadbed, mbali iliyonse ndi anakulitsa ndi 0.5m, kuyanika kwa gawo lapansi wabwino nthaka kwa kukweza pambuyo ntchito 25T kugwedera wodzigudubuza malo amodzi kuthamanga. kawiri, ndiyeno 50T kuthamanga kunjenjemera kanayi, malo osagwirizana ndi kusanja Buku.
(2) Kuyala mchenga wa 0.3m wandiweyani (wokhuthala), buku lowongolera makina, 25T kugwedezeka kwa 25T kugwedezeka kokhazikika kawiri.
(3) kuyala geogrid, geogrid kuyala pansi ayenera kukhala lathyathyathya, wandiweyani, kawirikawiri ayenera kukhala lathyathyathya, mowongoka, palibe palina, palibe mapiringa, kink, awiri oyandikana geogrid ayenera kukumbatira 0.2m, ndi m'mbali mwa roadbed ofananira nawo geogrid lap gawo lililonse. 1m yokhala ndi mawaya nambala 8 polumikizirana, ndipo m'magulu oyikidwa, 1.5-2m iliyonse yokhala ndi U-misomali yokhazikika pansi.
(4) woyamba wosanjikiza wa geogrid yoyalidwa, anayamba kudzaza wosanjikiza wachiwiri wa 0.2m wandiweyani mu (coase) mchenga, njira: galimoto mchenga ku malo amatsitsidwa pa mbali ya roadbed, ndiyeno ntchito bulldozer kukankhira patsogolo. , woyamba mamita 2 mbali zonse za bedi la msewu atadzaza 0.1m, wosanjikiza woyamba wa geogrid udapindidwa ndikudzazidwa ndi 0.1m mkati (yolimba) mchenga, kuletsa mbali zonse pakati pa kudzazidwa ndi patsogolo, kuletsa mitundu yonse ya makina pakalibe Izi zikhoza kuonetsetsa kuti geogrid ndi lathyathyathya, popanda ng'oma ndi makwinya, ndipo pambuyo wosanjikiza wachiwiri wa sing'anga (coarse) mchenga ndi flattened. , muyeso wa mulingo uyenera kuchitidwa kuti mupewe makulidwe osakwanira odzaza, ndipo 25T vibratory roller iyenera kugwiritsidwa ntchito kawiri muyeso utatha.
(5) gawo lachiwiri la njira yomanga ya geogrid ndi gawo loyamba la njira yomweyo, ndipo potsiriza mudzaze 0.3m mu mchenga (wawawa), ndikudzaza njira yofanana ndi yoyamba, ndi 25T wodzigudubuza static pressure kawiri, kotero kuti roadbed gawo lapansi kulimbitsa kwamalizidwa.
(6) mu lachitatu wosanjikiza wa (coarse) mchenga wosweka, pamodzi ndi mzere wa kotalika msewu mbali zonse za otsetsereka anaika geogrid awiri, lap 0.16m, ndi chikugwirizana chimodzimodzi, ndiyeno kuyamba ntchito yomanga dziko lapansi, atagona geogrid. kuteteza otsetsereka, wosanjikiza aliyense ayenera kuyeza kuchokera m'mphepete mwa kuika, mbali iliyonse kuonetsetsa kuti otsetsereka kukonza geogrid kukwiriridwa mu kutalika 0.10m.
(7) Pa magawo awiri aliwonse a dothi lodzazidwa, mwachitsanzo 0.8m mu makulidwe, wosanjikiza wa geogrid uyenera kuikidwa mbali zonse ziwiri nthawi imodzi, kenako mpaka kukafika pamtunda wa phewa la msewu.
(8) mutatha kudzazidwa kwa msewu, kukonza malo otsetsereka panthawi yake, ndi chitetezo cha mwala wouma pamtunda wa malo otsetsereka, gawo la msewuwo kuwonjezera pa kukulitsa 0.3m mbali iliyonse, ndikusungira 1.5% ya kumira.