Ukusetshenziswa komlotha wempukane endaweni egandayiwe kugxilwe kakhulu ezicini ezimbili: umlotha womcako (umcako nomlotha wempukane) izinto ezizinzile kanye nezinto ezizinzile zikasimende. Lezi zinto ezimbili zihlanganiswe zaba amazinga kazwelonke, ubuchwepheshe buvuthiwe, futhi kunezinhlelo eziningi ezisebenzayo. Ukufakwa komlotha wezimpukane endaweni egandayiwe ikakhulukazi indawo exubene netiyela kanye nokhonkolo lukasimende. U-Jiao Hua wocwaningo lweNyuvesi yase-Chang'an kuthisisi yenkosi yakhe ubonisa ukuthi uma umlotha wempukane uthatha indawo yayo yonke i-ore powder kungxube yetiyela ye-AC-16, unokumelana nokuqhekeka okuphansi kwezinga lokushisa eliphansi kanye nokuzinza okungcono kwezinga lokushisa kunalowo oxutshwe ne-ore powder. , ukuzinza kwamanzi sekuthuthukisiwe kodwa umphumela awuvelele. U-Xie Jun, u-Wu Shaopeng, nabanye bafunde umphumela wokwelashwa okungaphezulu kwempukane umlotha kanye ne-ejenti ehlanganisayo ekulimaleni komswakama wengxube ye-asphalt. Ukuhlanganisa i-filler ne-ejenti yokuhlanganisa kanye nomlotha wempukane kubizwa ngokuthi i-composite fly ash modifier. Izakhiwo zesishintshi somlotha wempukane esiyinhlanganisela zazibonakala kakhulu ngokuskena i-electron microscopy kanye ne-Fourier transform infrared spectroscopy. Njengesigcwalisi, umphumela wawo ekuzweleni komswakama wezingxube ze-asphalt wahlolwa ngokuhlolwa kwemodulus yokuqina kokuqina okungaqondile, i-static creep, nokuhlolwa kokukhathala okungaqondile. Imiphumela ibonisa ukuthi ingxube yetiyela enenhlanganisela yomlotha wempukane inamandla angaqondile angaqondile kanye namandla aqinile aqinile phakathi nesithwathwa futhi inokuzwela okuhle kakhulu komswakama. Ngaphezu kwalokho, i-composite fly ash modifier modified asphalt ingxube ibonise ukuqina okungcono kwe-modulus, ukumelana nokuguqulwa okuhlala njalo, nokuphila kokukhathala ngemva kokwelashwa okuthile komonakalo womswakama. Isiphetho: I-composite fly ash modifier ingathuthukisa ngempumelelo ukuzwela komswakama wengxube ye-asphalt.
Izindonga zomlotha we-fly nazo zisetshenziswa kakhulu kwezobunjiniyela bemigwaqo, ikakhulukazi ezigabeni zemigwaqo yesisekelo senhlabathi ethambile. Ingasebenzisa ngokugcwele isisindo esilula somlotha wempukane ukunciphisa isisindo sodonga kanye nokucindezeleka okwengeziwe kwesisekelo senhlabathi ethambile, ngaleyo ndlela kunciphise ukuhlaliswa okuphelele futhi kuthuthukise ukusimama komugqa. Ngokufanayo, ukugcwalisa umlotha we-fly ngenhlabathi egcwele kakhulu ku-bridgehead kungathuthukisa inkinga ye-bridgehead jumping ebangelwa ukuxazululwa okubangelwa ukuzithwala kwenhlabathi egcwele kakhulu e-bridgehead. U-Liu Tiejun wafunda izici eziwumshini zomlotha wempukane osetshenziswa njengokugcwalisa udonga futhi wafinyelela eziphethweni ezilandelayo: ukuminyana okomile komlotha wezimpukane kubonise umkhuba wokwanda kuqala bese wehla ngokwanda kokuqukethwe komswakama, kanye nokuminyana okomile okuphezulu kokuqukethwe komswakama. kwaba ngu-19%; I-coefficient yokwazi ukungena komlotha wamalahle iyancipha ngokukhula komthamo owomile. Lapho ukuminyana okomile komlotha wempukane kungaphansi kuka-1.35g/cm3, ukuminyana okomile akunawo umthelela ku-coefficient yayo yokungena; ukuhlangana komlotha wempukane kuyanda ngokuqukethwe kwamanzi Lapho umswakama womlotha wezimpukane ukhula futhi wehla, futhi ukwehla kuhamba kancane lapho okuqukethwe komswakama kungaphansi kwama-26%, kungenjalo kuncipha ngokushesha; lapho umswakama womlotha wezimpukane ukhuphuka ngo-1%, i-angle ye-friction yangaphakathi iyancipha cishe ngo-0.25 °; Ukuhlangana komlotha wamalahle kukhuphuka ngokuhambisana nokwanda kwedigri yokuhlanganisa, kuyilapho i-angle yokungqubuzana yangaphakathi yomlotha womlotha ikhula ngokuphawulekayo ngokwanda kwedigri yokuhlanganisa; umswakama womlotha wezimpukane Lapho ukusondela kokuqukethwe komswakama okuhle kakhulu noma ukusondelana no-100% ukucinana, kuyancipha ukuncipha kokuhlangana kanye ne-engeli yokungqubuzana kwangaphakathi nokwanda kwezikhathi zokudlidliza, futhi kuba lula ukufinyelela esimweni esizinzile ekuqaleni. isigaba sokudlidliza. U-Chen Yunyong kanye no-Gao Liang baphinde benza izivivinyo zemodeli yasendlini emaphethelweni omlotha wempukane aqinisiwe. Ngokomgomo wokufana, la madoda amabili ehlise unqenqema lwangempela ngesilinganiso esingu-1:8 futhi asebenzisa i-geogrid eqondiswa kabili njengento yokuqinisa, futhi enza ucwaningo lokuhlola ngengcindezi nobunzima bomlotha wempukane oqinisiwe. Imiphumela ibonisa ukuthi ukuhlaliswa okungalingani kwe-fly ash ebankment kungancishiswa kakhulu ngokuqiniswa kwe-geogrid, futhi amandla okuthwala othango angathuthukiswa kakhulu.
Umthombo wokuqukethwe: I-Fly Ash Industry Alliance
Isikhathi sokuthumela: Jul-10-2023