1. Yehlisa ijubane imifantu yokubona
① Ukuqhekeka okubonakalayo kubangelwa ukugxila kwengcindezi kokumbondelana kwe-asphalt ngenhla kwendawo kakhonkolo endala ngenxa yokugudluzwa okukhulu kwendawo kakhonkolo endala eduze kwamalunga noma imifantu. Kuhlanganisa ukugudluzwa okuvundlile okubangelwa izinguquko kuzinga lokushisa kanye nomswakama, kanye nokugudluzwa kwe-shear okume mpo okubangelwa umthwalo. Okwangaphambili kuphumela ekucindezelekeni okugxilile okugxilile kokumbondelana kwe-asphalt ngenhla kwelunga noma ukuqhekeka; lokhu kokugcina kubangela ukumbondela kwe-asphalt ngenhla kwejoyinti ukuzwa ukucindezeleka okukhulu kwe-flexural tensile kanye nokucindezeleka kwe-shear.
②Ngenxa yokuthi i-modulus ye-geogrid inkulu kakhulu, ifinyelela ku-67Gpa, isetshenziswa njenge-interlayer eqinile enokuqina okuphezulu kokumbondelana kwetiyela. Umsebenzi wayo ukuvimbela ukucindezeleka nokukhulula ubunzima. Ngesikhathi esifanayo, isetshenziswa njengezinto zokuqinisa ukhonkolo we-asphalt ukuze kuthuthukiswe ukwakheka kokumbondelana Ukumelana ne-tensile ne-shear kungancishiswa ukuze kufezwe inhloso yokunciphisa imifantu. Ukuzijwayeza kukhombisile ukuthi amandla okuqhekeka ahambisanayo okuqhekeka okuvundlile okushintshe indlela anganyakaziswa amamitha ayi-0.6 ukusuka lapho aqala khona, futhi izinto zokuqinisa ezinobubanzi obungaphezu kwamamitha ayi-1.5 zisiza ekuqinisekiseni ukuthi amandla ahlakazekile ngokuphelele nhlangothi zombili zomgwaqo. qhekeza.
2. Ukuqhekeka okuqeda ukukhathala
①Umsebenzi oyinhloko wembondela ye-asphalt endaweni egandayiwe ngosimende endala ukuthuthukisa umsebenzi wokusetshenziswa kwendlela egandayiwe, kodwa ayifaki isandla kakhulu emthelela wokuthwala. Indawo egandaywe ngokhonkolo eqinile ngaphansi kwembondela isadlala indima ebalulekile. Isembozo se-asphalt endaweni egandayiwe kakhonkolo endala ye-asphalt ihlukile, ukumbozwa kwe-asphalt kuzothwala umthwalo kanye nomgwaqo omdala we-asphalt ukhonkolo. Ngakho-ke, ngaphezu kokuqhekeka kokucabangela, ukuqhekeka kokukhathala kuzokwenzeka futhi ngenxa yomphumela wesikhathi eside wemithwalo lapho ukumbozwa kwe-asphalt kwenziwa emigwaqweni ekhonkolo ye-asphalt. Senza ukuhlaziya ukucindezeleka esimweni somthwalo wokumbozwa kwe-asphalt emgwaqeni omdala wekhonkrithi we-asphalt: njengoba ukumbozwa kwe-asphalt kuyindawo eguquguqukayo enezakhiwo ezifanayo njenge-asphalt yokumbondela, lapho ingaphansi komthwalo, indawo yomgwaqo izogoba. Shen. Isendlalelo se-asphalt esithinta ngqo isondo singaphansi kwengcindezi, futhi endaweni ngaphandle konqenqema lomthwalo wesondo, ungqimba lwangaphezulu lungaphansi kwengcindezi. Njengoba izakhiwo zamandla zezindawo ezimbili ezigcizelelwe zihlukile futhi ziseduze komunye nomunye, i-Junction yendawo yamandla, okungukuthi, ukuguqulwa okungazelelwe kwamandla, kujwayele ukulimala. Ukuqhekeka kokukhathala kwenzeka ngaphansi kokulayisha isikhathi eside.
② I-fiberglass geogrid ingahlakaza ingcindezi ecindezelayo eshiwo ngenhla kanye nengcindezi eqinile endaweni ye-asphalt, futhi yakhe indawo ye-buffer phakathi kwezindawo ezimbili ezigcizelelwe, lapho ukucindezeleka kushintsha kancane kancane esikhundleni sokuzuma, kunciphisa umthelela wengcindezi engazelelwe ekubhujisweni. zokumbondelana kwe-asphalt. Ngesikhathi esifanayo, ukuphakama okuphansi kwe-fiber geogrid yengilazi kunciphisa ukuchezuka kwendlela egandaywe ngamatshe futhi kuqinisekisa ukuthi indlela egandayiwe ngeke ibe nokuguquguquka kwesikhashana.
3. Ukushisa okuphezulu kwe-rutting
①Ukhonkolo we-asphalt unezici ze-rheological ezingeni lokushisa eliphezulu, okubonakala ngokuthi: umgwaqo wetiyela uba thambile futhi unamathele ehlobo; ngaphansi kwesenzo somthwalo wemoto, indawo ecindezelekile igxiliwe, futhi indawo ye-asphalt ayikwazi ukubuyisela ngokugcwele emthwalweni ngemva kokususwa komthwalo wemoto Ngaphansi kwesenzo sokugoqa okuphindaphindiwe kwemoto, ukuguqulwa kwepulasitiki kuyaqhubeka nokuqoqa, kwakha ama-ruts. Ngemva kokuhlaziya ukwakheka kwesendlalelo se-asphalt surface, singakwazi ukwazi ukuthi ngenxa yezakhiwo ze-rheological zekhonkrithi ye-asphalt ngaphansi kokushisa okuphezulu, akukho mshini endaweni engaphezulu engavimbela ukunyakaza kwama-aggregates kukhonkolo ye-asphalt lapho ilayishiwe, okuholela ekuhambeni kwe-asphalt surface layer, Lesi yisizathu esiyinhloko sokwakheka kwama-ruts.
②Sebenzisa i-fiber geogrid yengilazi endaweni ye-asphalt, edlala indima yohlaka lwamathambo ongqimba lwe-asphalt. I-aggregate kukhonkolo ye-asphalt ihamba phakathi kwamagridi, yakha uhlelo oluhlanganisiwe lwemishini, ikhawulela ukunyakaza kwe-aggregate, futhi ikhulisa amandla okubopha i-lateral ongqimbeni lwe-asphalt surface. phusha, ukuze ubambe iqhaza ekumelaneni nokurutha.
4. Melana nokuqhekeka kwezinga lokushisa eliphansi
①Imigwaqo yetiyela ezindaweni ezibandayo kakhulu, izinga lokushisa elingaphezulu ebusika liseduze nezinga lokushisa lomoya. Ngaphansi kwezimo ezinjalo zokushisa, ukhonkolo we-asphalt uyashwabana lapho kubanda, okuholela ekucindezelekeni okuqinile. Lapho ukucindezeleka okuqinile kudlula amandla okuqina kakhonkolo we-asphalt, kuyokwenzeka imifantu, futhi imifantu izokwenzeka ezindaweni lapho imifantu igxilile, okuholela ezifweni. Ngokombono wezimbangela zokuqhekeka, indlela yokwenza amandla okhonkolo we-asphalt amelane nokucindezeleka okuqinile kuyisihluthulelo sokuxazulula inkinga.
②Ukusetshenziswa kwe-glass fibre geogrid ongqimbeni olungaphezulu kwe-asphalt kuthuthukisa kakhulu amandla aqinile kakhonkolo we-asphalt, ongamelana nokucindezeleka okukhulu ngaphandle kokulimala. Ngaphezu kwalokho, ngisho noma ukucindezeleka endaweni lapho ukuqhekeka kwenzeka khona kugxile kakhulu ngenxa yokuqhekeka kwendawo yendawo, kuzonyamalala kancane kancane ngokudluliswa kwe-fiber geogrid yengilazi, futhi ukuqhekeka ngeke kusakhula kube ukuqhekeka. Lapho ukhetha i-glass fibre geogrid, ngaphezu kwenkomba yayo yokusebenza kufanele ihlangabezane nezidingo zetafula elingenhla, ukunakwa okukhethekile kufanele kukhokhwe ukuze kuqinisekiswe ukuthi ububanzi bayo abukho ngaphansi kuka-1.5m, ukuze kuhlangatshezwane nemfuneko yokuthi inesiphambano esanele se-cross-. indawo yesigaba ukulawula imifantu yokubona njenge-interlayer. Hlanza ngokugcwele amandla okuqhekeka; ngesikhathi esifanayo, usayizi we-mesh kufanele ube izikhathi ezingu-0.5 kuya ku-1.0 ubukhulu bezinhlayiyana ze-asphalt surface layer material, okusiza ukufeza ukunamathela okuphezulu kwe-shear nokukhuthaza ukuhlanganisa okuhlanganisiwe nokuvalelwa.
Isikhathi sokuthumela: Oct-08-2022