1. Jiri nwayọọ na-atụgharị uche mgbawa
① Ihe mgbawa na-atụgharị uche na-akpata site na nrụgide nrụgide dị na asphalt overlay n'elu ihe ochie ochie n'ihi nnukwu mgbanwe nke ihe ochie ochie dị nso na nkwonkwo ma ọ bụ mgbawa. Ọ na-agụnye ntugharị kwụ ọtọ nke mgbanwe na okpomọkụ na iru mmiri kpatara, yana Mwegharị shear vetikal nke ibu kpatara. Ihe mbụ a na-ebute na mgbakasị mgbakasị ahụ gbadoro anya na asphalt machie n'elu nkwonkwo ma ọ bụ mgbawa; Nke ikpeazụ na-eme ka asphalt machie n'elu njikọ ahụ iji nweta nrụgide ngbanwe dị ukwuu na nrụgide siri ike.
② N'ihi na modul nke geogrid buru ibu, na-eru 67Gpa, a na-eji ya dị ka interlayer siri ike na akwa siri ike na mkpuchi asphalt. Ọrụ ya bụ igbochi nrụgide na ịhapụ nsogbu. N'otu oge ahụ, a na-eji ya dị ka ihe nkwado nke asphalt na-eme ka ọ dịkwuo mma na nhazi nke ihe mkpuchi ahụ nwere ike ibelata nkwụsịtụ na nkwụsị iji nweta nzube nke ibelata mgbawa. Omume gosiri na kwekọrọ ekwekọ mgbape ume nke a kehoraizin mgbape nke gbanwere direction nwere ike ịkwaga 0,6 mita site na mmalite ya, na mkwado ihe na a obosara nke ihe karịrị 1.5 mita na-enyere aka hụ na ike zuru ezu dissipated n'akụkụ abụọ nke. mgbawa.
2. Mgbochi ike ọgwụgwụ mgbawa
① Isi ọrụ nke mkpuchi asphalt na pavement simenti ochie bụ iji meziwanye ọrụ nke pavement ahụ, mana ọ naghị etinye aka na mmetụta. Pavement siri ike nke dị n'okpuru ihe mkpuchi ahụ ka na-arụ ọrụ dị mkpa. Ihe mkpuchi asphalt na pavement ochie asphalt dị iche, ihe mkpuchi asphalt ga-ebu ibu ya na pavement ochie asphalt. Ya mere, na mgbakwunye na mgbawa ntụgharị uche, mgbawa ike ọgwụgwụ ga-emekwa n'ihi mmetụta dị ogologo oge nke ibu mgbe a na-eme ihe mkpuchi asphalt na pavement asphalt. Anyị na-eme nyocha nke nrụgide na ọnọdụ ibu nke asphalt na-ekpuchi na pavement ochie nke asphalt: ebe ọ bụ na ihe mkpuchi nke asphalt bụ ihe na-agbanwe agbanwe nke nwere otu ihe ahụ dị ka ihe mkpuchi nke asphalt, mgbe a na-ebufe ya, okporo ụzọ ga-ehulata. Shen. Ngwunye elu nke asphalt ozugbo na kọntaktị na wheel na-enwe nrụgide, na n'ebe ndị ọzọ na-abụghị akụkụ nke wheel load, oyi akwa dị n'okpuru esemokwu. Ebe ọ bụ na ihe ndị dị ike nke mpaghara abụọ a na-emesi ike dị iche iche na ha dị nso na ibe ha, Njikọ nke mpaghara ike, ya bụ, mgbanwe mberede nke ike, na-enwe ike imebi. Mgbawa ike ọgwụgwụ na-eme n'okpuru nbudata ogologo oge.
② The fiberglass geogrid nwere ike gbasaa ihe ahụ a kpọtụrụ aha n'elu na-akpata nrụgide nrụgide na nrụgide tensile na oyi akwa nke asphalt, wee mepụta mpaghara nchekwa n'etiti mpaghara abụọ a na-enwe nrụgide, ebe nrụgide na-agbanwe nwayọọ nwayọọ kama na mberede, na-ebelata mmetụta nke nrụgide mberede na mbibi ahụ. nke mkpuchi asphalt. N'otu oge ahụ, obere elongation nke iko fiber geogrid na-ebelata nkwụsị nke pavement ma hụ na pavement agaghị enwe mgbanwe mgbanwe.
3. Akwa okpomọkụ rutting
①Asphalt ihe nwere rheological Njirimara na elu okpomọkụ, nke a na-egosipụta na: okporo ụzọ asphalt na-aghọ nro na nnyapade n'oge okpomọkụ; n'okpuru ọrụ nke ibu ụgbọ ala, ebe a na-emesi ike na-agbaji, na elu asphalt enweghị ike ịgbake zuru oke na ibu ahụ mgbe ebupụrụ ibu ụgbọ ala N'okpuru ọrụ nke ịghagharị ụgbọala ugboro ugboro, nrụrụ plastik na-aga n'ihu na-agbakọta, na-emepụta ruts. Mgbe nyochaa Ọdịdị nke asphalt elu oyi akwa, anyị nwere ike mara na n'ihi na rheological Njirimara nke asphalt ihe n'okpuru elu okpomọkụ, ọ dịghị usoro na elu oyi akwa nke nwere ike igbochi mmegharị nke aggregates na asphalt ihe mgbe ọ na-kwajuru. dapụtara na ije nke asphalt elu oyi akwa, Nke a bụ isi ihe mere e guzobere ruts.
② Jiri geogrid enyo enyo na oyi akwa asphalt, nke na-arụ ọrụ skeleton n'elu oyi akwa asphalt. Mkpokọta na asphalt ihe na-aga site na grids, na-akpụ a mejupụtara mebere interlocking usoro, na-egbochi mmegharị nke mkpokọta, na-amụba mpụta njide ike na asphalt elu oyi akwa. ịkwanye, ka o wee rụọ ọrụ n'iguzogide rutting.
4. Na-eguzogide obere okpomọkụ shrinkage cracking
① Asphalt okporo ụzọ na oké oyi ebe, elu okpomọkụ na oyi dị nso na ikuku okpomọkụ. N'okpuru ọnọdụ okpomọkụ dị otú ahụ, kọnkịta asphalt na-ebelata mgbe oyi na-atụ, na-ebute nrụgide nkwụsị. Mgbe nrụgide nkwụsị ahụ karịrị ike ike nke asphalt, mgbawa ga-eme, na mgbawa ga-eme n'ebe ebe mgbawa ahụ gbadoro anya, na-ebute ọrịa. Site n'echiche nke ihe ndị na-akpata mgbawa, otu esi eme ka ike nke asphalt dị ike na-eguzogide nrụgide nrụgide bụ isi ihe na-edozi nsogbu ahụ.
② Ngwa nke iko fiber geogrid na oyi akwa nke asphalt na-eme ka ike ike nke asphalt dị mma, nke nwere ike iguzogide nrụgide siri ike na-enweghị mmebi. Tụkwasị na nke ahụ, ọ bụrụgodị na nrụgide dị n'ebe mgbawa ahụ na-eme ka ọ dị ukwuu n'ihi mgbawa na mpaghara mpaghara, ọ ga-eji nwayọọ nwayọọ na-apụ n'anya site na nnyefe nke iko fiber geogrid, mgbawa ahụ agaghịkwa amalite ịghọ mgbawa. Mgbe ị na-ahọrọ glazing fiber geogrid, na mgbakwunye na ndepụta arụmọrụ ya kwesịrị imezu ihe achọrọ nke tebụl dị n'elu, a ga-akwụrịrị nlebara anya pụrụ iche iji hụ na obosara ya abụghị ihe na-erughị 1.5m, iji mezuo ihe achọrọ na ọ nwere oke obe. mpaghara ngalaba iji chịkwaa mgbawa ntụgharị uche dị ka interlayer. Wepu ike mgbape zuru oke; N'otu oge ahụ, nha ntupu kwesịrị ịbụ 0.5 ruo 1.0 ugboro kachasị oke nke ihe dị n'elu ihe mkpuchi nke asphalt, nke na-enyere aka nweta oke nrapado nke shear ma kwalite nchịkọta nchịkọta na njide.
Oge nzipu: Ọktoba 08-2022