Litaba

1. Ke mesebetsi efe ea mefuta e fapaneng ea li-geogrids
Joalo ka thepa e sebelisoang hangata kahong ea litsela, li-geogrids li phetha karolo ea bohlokoa kahong ea litsela.Ka nako e ts'oanang, li-geogrids li boetse li arotsoe ka mefuta e sa tšoaneng.Kajeno re tla hlahisa karolo ea mefuta e fapaneng ea li-geogrids.
Ho na le mefuta e mene ea li-geogrids.Ha re ba tsebiseng:
1. Ts'ebetso ea geogrid ea polasetiki ea unidirectional:
Uniaxial tensile geogrid ke thepa ea geosynthetic e matla haholo.E sebelisoa haholo sebakeng sa marang-rang, kotopo, boema-kepe, tsela e kholo, seporo, kaho le masimong a mang.Litšebeliso tsa eona tse ka sehloohong ke tse latelang: ho matlafatsa subgrade, ho aba ka katleho mojaro oa phallo, ho ntlafatsa botsitso le bokhoni ba ho jara ba subgrade, le ho lelefatsa bophelo ba tšebeletso.E khona ho mamella boima bo boholo bo fapanyetsanang.Thibela deformation ea subgrade le ho peperana ho bakoang ke tahlehelo ea thepa ea subgrade.E ka ntlafatsa bokhoni ba ho itlama ba ho tlatsa ka mor'a lerako le bolokang, ho fokotsa khatello ea lefatše ea lerako le bolokang, ho boloka litšenyehelo, ho lelefatsa bophelo ba tšebeletso, le ho fokotsa litšenyehelo tsa tlhokomelo.Ho kopantsoe le mokhoa oa kaho oa konkreite ea shotcrete le ankora, tlhokomelo ea matsoapo e ke ke ea boloka feela 30% - 50% ea matsete, empa hape e khutsufatsa nako ea kaho ka makhetlo a fetang a mabeli.Ho eketsa li-geogrid sebakeng sa subgrade le holim'a tsela e kholo ho ka fokotsa ho kheloha, ho fokotsa ho senya, ho liehisa nako ea ho hlaha ha crack ka makhetlo a 3-9, le ho fokotsa botenya ba lera la mohaho ka 36%.E sebetsa mefuteng eohle ea mobu, ntle le tlhoko ea lisebelisoa tse tsoang libakeng tse ling, 'me e boloka mosebetsi le nako.Kaho e bonolo ebile e potlakile, e ka fokotsang litšenyehelo tsa kaho haholo.Katoloso e kopaneng ea geogrid, netefatso ea boleng.

2. Karolo ea geogrid ea polasetiki ea litsela tse peli:
Eketsa bokhoni ba ho jara ba motheo oa litsela (fatše) le ho lelefatsa bophelo ba tšebeletso ea motheo oa litsela (fatše).Thibela ho putlama kapa ho petsoha ha tsela (fatše) 'me u boloke mobu o le motle ebile o le makhethe.Kaho e bonolo, ho boloka nako, ho boloka mosebetsi, ho khutsufatsa nako ea kaho le ho fokotsa litšenyehelo tsa tlhokomelo.Thibela culvert ho petsoha.Matlafatsa moepa oa mobu le ho thibela tahlehelo ea metsi le mobu.Fokotsa botenya ba mosamo mme u boloke litšenyehelo.Tšehetsa tikoloho ea botala e tsitsitseng ea 'mate ea ho jala joang sebakeng sa moepa.E ka nkela letlooeng la tšepe sebaka 'me ea sebelisoa bakeng sa letlooeng la marulelo a fosahetseng morafong oa mashala.
3. Karolo ea tšepe-plastiki geogrid:
E sebelisoa haholo-holo masimong a matlafatso ea motheo oa mobu o bonolo, ho boloka lerako le katiloeng ho hanyetsa boenjiniere ba litsela tse kholo, literene, li-abutments, litsela, li-wharves, revetments, matamo, li-slag jards, joalo-joalo.
4. Mosebetsi oa khalase ea fiber geogrid:
Tsela ea khale ea konkreite ea asphalt e matlafatsoa ho matlafatsa holim'a asphalt le ho thibela maloetse.Tsela ea konkreite ea samente e hahuoa bocha hore e be sebaka se kopaneng ho thibela mapetsong a bonahalang a bakoang ke ho honyela ha poleiti.Katoloso ea litsela le mesebetsi ea ho aha bocha, ho thibela mapetsong a bakoang ke mateano a macha le a khale le meaho e sa lekanang.Phekolo ea matlafatso ea motheo oa mobu o bonolo o thusa ho arohana ha metsi le ho kopanya mobu o bonolo, ho thibela ka katleho ho rarolla, ho fana ka khatello ea kelello e tšoanang, le ho matlafatsa matla a kakaretso a subgrade.Motheo o tiileng oa tsela e ncha o hlahisa mapetsong a honyehang, 'me matlafatso a sebelisetsoa ho thibela mapetsong a litsela a bakoang ke ho bonahatsa mapetsong a motheo.

2, Ts'ebetso ea geogrid e khahlanong le mokhathala e ntle hakae
Geogrid e sebelisa fiber ea polyester ea matla a phahameng kapa polypropylene e le thepa e tala, e nka sebopeho se otlolohileng sa warp, 'me likhoele tsa warp le tsa weft leselang ha li na ho kobeha,' me mateano a kopane a kopantsoe le likhoele tse matla a phahameng ho etsa ntlha e tiileng e tlamang, e fanang ka papali e felletseng ho thepa ea eona ea mochini.Joale na ua tseba hore na khanyetso ea eona ea mokhathala e ntle hakae?
Phello e kholo ea sekoahelo sa asphalt holim'a tsela ea khale ea konkreite ea samente ke ho ntlafatsa ts'ebetso ea ts'ebetso ea marako, empa ha e na tlatsetso e nyane ho phello ea ho beha.Tsela e thata ea konkreite e tlas'a sekoahelo e ntse e na le phello ea bohlokoa.Sekoahelo sa asphalt holim'a tsela ea khale ea konkreite ea asphalt se fapane.Sekoahelo sa asphalt se tla jara mojaro hammoho le tselana ea khale ea konkreite ea asphalt.Ka hona, sekontiri sa asphalt holim'a sekontiri sa asphalt se ke ke sa bontša feela mapetsong a ho bonahatsa, empa hape se bontša mapetsong a mokhathala ka lebaka la phello ea nako e telele ea mojaro.A re hlahlobeng boemo ba ho roala ha asphalt holim'a sekontiri sa khale sa konkreite: hobane sekoahelo sa asphalt ke sebaka se feto-fetohang se nang le thepa e tšoanang le sekontiri sa asphalt, ha se le tlas'a phello ea mojaro, tsela e katiloeng e tla ba le ho kheloha.Sekoahelo sa asphalt se amang lebili ka ho toba se tlas'a khatello, 'me bokaholimo bo tlas'a matla a thata sebakeng se ka ntle ho moeli oa boima ba mabili.Hobane matla a matla a libaka tse peli tsa khatello ea kelello a fapane 'me a atamelane, ho bonolo hore a senyehe ha a kopana le libaka tse peli tsa khatello ea kelello, e leng phetoho ea tšohanyetso ea matla.Tlas'a phello ea mojaro oa nako e telele, ho phatloha ha mokhathala ho etsahala.
Geogrid e ka qhalakanya khatello e ka holimo ea khatello le khatello ea maikutlo ka holim'a sekontiri sa asphalt ho etsa sebaka sa buffer pakeng tsa libaka tse peli tsa khatello ea kelello, moo khatello ea kelello e fetohang butle-butle ho e-na le ka tšohanyetso, ho fokotsa tšenyo ea khatello ea maikutlo phetoho ea tšohanyetso ho sekontiri sa asphalt.Bolelele bo tlase ba khalase ea fiber geogrid e fokotsa ho kheloha ha tsela le ho netefatsa hore tsela e katiloeng e ke ke ea ba le phetoho ea phetoho.
Unidirectional geogrid e fetisetsoa maqepheng a tšesaane ka polymer (polypropylene PP kapa polyethylene HDPE), ebe e phunyeletsoa ka har'a marang-rang a tloaelehileng a lesoba, ebe e otlolloa ka nako e telele.Ts'ebetsong ena, polymer e boemong bo lekanang, e etsa mohaho o molelele oa elliptical network o nang le kabo e tšoanang le matla a phahameng a node.
Unidirectional grid ke mofuta oa thepa e matla e phahameng ea geosynthetic, e ka aroloang ka gridi ea unidirectional polypropylene le grid unidirectional polyethylene grid.
Uniaxial tensile geogrid ke mofuta oa geotextile e matla haholo e nang le polymer e phahameng ea molek'hule joalo ka thepa e tala ea mantlha, e kenyellelitsoeng ka li-anti ultraviolet le li-anti-botsofali tse itseng.Ka mor'a tsitsipano ea uniaxial, limolek'hule tsa pele tse ajoang li khutlisetsoa boemong bo lekanang, ebe li fetisetsoa ka poleiti e tšesaane, e amang letlooeng le tloaelehileng, ebe e otlolloa ka nako e telele.Material Science.
Ts'ebetsong ena, polymer e tataisoa ke naha ea moeli, e etsa mohaho o molelele oa elliptical network o nang le kabo e tšoanang le matla a phahameng a node.Mohaho ona o na le matla a holimo haholo a matla le modulus e tsitsitseng.Matla a matla ke 100-200Mpa, e haufi le boemo ba tšepe e tlaase ea carbon, 'me e molemo haholo ho feta lisebelisoa tsa khale kapa tse teng tse matlafatsang.
Haholo-holo, sehlahisoa sena se na le boemo bo phahameng ka ho fetesisa ba machaba (botelele ba 2% - 5%) matla a ho tsitsa le modulus e tsitsitseng.E fana ka tsamaiso e loketseng bakeng sa boitlamo ba mobu le ho hasana.Sehlahisoa sena se na le matla a holimo (> 150Mpa) 'me se loketse mefuta eohle ea mobu.Ke lisebelisoa tse matlafatsang tse sebelisoang haholo hajoale.Litšobotsi tsa eona tse ka sehloohong ke matla a holimo, ts'ebetso e ntle ea creep, kaho e bonolo le theko e tlase.