Iyo base layer yeasphalt pavement yakakamurwa kuita semi-yakasimba uye yakaoma. Sezvo chigadziko chepasi uye chepamusoro chepamusoro zvinhu zvezvinhu zvakasiyana-siyana, kusungirirwa kwakanaka uye kuenderera mberi pakati pezviviri ndizvo zvinonyanya kudiwa pamhando iyi yekufamba. Pamusoro pezvo, kana asphalt surface layer ichinyura mvura, mvura zhinji inenge yaiswa pajoining iri pakati pedenga ne base layer, zvichikonzera kukuvadzwa kweasphalt pavement senge slurry, looseness, uye makomba. Naizvozvo, kuwedzera yakadzika chisimbiso chisimbiso pamusoro peiyo semi-yakaomarara kana yakaomesesa base layer ichaita basa rakakosha mukusimudzira simba, kugadzikana uye kudzivirira mvura kugona kweiyo pavement structural layer. Iyo inonyanya kushandiswa ndeye kushandisa asphalt gravel synchronous sealing tekinoroji.

Lower seal layer
Inter-layer connection
Pane misiyano iri pachena pakati peasphalt surface layer uye semi-rigid kana rigid base layer maererano nechimiro, zvekuumba zvinhu, tekinoroji yekuvaka uye nguva. Nzvimbo inotsvedza inoumbwa zvine mutsindo pakati penzvimbo yepasi nehwaro. Mushure mekuwedzera iyo yepasi yekuvharisa chisimbiso, iyo yepamusoro layer uye base layer inogona kunyatsobatanidzwa mune imwe.

Kutamisa mutoro
Asphalt surface layer uye semi-rigid kana rigid base layer inotamba mabasa akasiyana mugwara rehurongwa. Iyo asphalt surface layer inonyanya kuita basa reanti-skid, isingapinde mvura, anti-ruzha, anti-shear inotsvedza uye inotsemuka, uye inoendesa mutoro kune base layer. Kuti uwane chinangwa chekutumira mutoro, panofanira kuva nekuenderera kwakasimba pakati pepamusoro pepamusoro uye nheyo yepamusoro. Kuenderera mberi uku kunogona kuwanikwa kuburikidza nebasa rezasi rekuvhara chisimbiso (adhesive layer, permeable layer).

Kuvandudza simba remugwagwa
Iyo elastic modulus yeasphalt pamusoro pedenga uye semi-yakaomarara kana yakaomesesa base layer zvakasiyana. Kana ivo vakasanganiswa pamwe chete uye vachiiswa pasi pemutoro, iyo yekushushikana yekuparadzira modhi yeimwe neimwe layer yakasiyana uye deformation zvakare yakasiyana. Pasi pekuita kweiyo vertical load uye lateral kukanganisa simba remotokari, Iyo yepamusoro layer ichava nedisplacement maitiro inoenderana ne base layer. Kana iko kukwesha kwemukati uye simba rekubatanidza repamusoro pedenga pacharo uye kupeta uye kusimba kushushikana kuri pazasi pedenga repamusoro hakukwanise kumirisana nekusuduruka uku, musara wepamusoro unotambura nekusundidzira, kukwenya, uye kunyange kusunungura nekusvuuka. Naizvozvo, rimwe simba rinofanirwa kupihwa Kudzivirira kufamba uku pakati pematanho. Mushure mekuwedzera iyo yepasi yekuisa chisimbiso chisimbiso, iyo friction uye kubatanidza simba rekudzivirira kufamba kunowedzerwa pakati pematanho, ayo anogona kuita ekubatanidza uye ekuchinja mabasa pakati pekuoma uye kupfava, kuitira kuti iyo yepamusoro layer, base layer, cushion layer uye nheyo yevhu inogona kuramba. mutoro pamwe chete. Kuti uwane chinangwa chekuvandudza simba rose remugwagwa.

Mvura uye isingapindiki
Mune akawanda-layered chimiro chemugwagwa mukuru asphalt pavement, chinenge chikamu chimwe chete chinofanira kunge chiri mhando I dense-giredhi asphalt kongiri musanganiswa. Chinangwa chayo ndechekuwedzera kuwanda kweiyo yepamusoro uye kudzivirira mvura yepasi kubva mukukoromoka nekukuvadza pavement uye pavement base. Asi izvi zvega hazvina kukwana, nekuti mukuwedzera kune dhizaini zvinhu, kuvakwa kweasphalt kongiri kunokanganiswawo nezvakawanda zvinhu zvakaita seasphalt quality, matombo ematombo, kutsanangurwa kwematombo uye kuenzana, reshiyo yemafuta-matombo, kusanganisa uye kugadzira midziyo, kupisa tembiricha. , kukunguruka nguva, etc. Impact. Iyo yepamusoro-soro, iyo inofanirwa kunge iine density yakanaka uye inenge zero yemvura permeability, inowanzova nepamusoro pemvura yekupinda nekuda kwechimwe chinongedzo chisiri panzvimbo, zvichikanganisa kugona kwekudzivirira-kuona kweasphalt pavement. Iyo inotokanganisa kugadzikana kweasphalt pavement pachayo, iyo base layer uye nheyo yevhu. Nokudaro, "Technical Specifications for Construction of Highway Asphalt Pavement" inotaura zvakajeka kuti kana iri munzvimbo inonaya mvura uye asphalt pamusoro pemvura ine mazamu makuru uye yakakomba mvura inoyerera, chisimbiso chepasi chinofanira kuiswa pasi peasphalt surface layer.

Lower chisimbiso layer yekuvaka chirongwa
Musimboti wekushanda we synchronous gravel sealing ndeye kushandisa yakakosha midziyo yekuvaka, iyo synchronous gravel yekuisa chisimbiso muchina, kupfapfaidza yakakwirira-tembiricha asphalt uye akachena, akaoma uye akafanana matombo munzira yemugwagwa kanenge panguva imwe chete, kuve nechokwadi chekuti asphalt nedombo zvakapfapfaidzwa pa nzira pamusoro penguva pfupi. Pedzisa kusanganiswa uye ramba uchisimbisa simba pasi pechiito chemutoro wekunze.
Mhando dzakasiyana dzeasphalt binders dzinogona kushandiswa pakuisa chisimbiso panguva imwe chete yeasphalt gravel: yakanyoroveswa yakachena asphalt, polymer SBS yakagadziridzwa asphalt, emulsified asphalt, polymer modified emulsified asphalt, diluted asphalt, etc. Parizvino, nzira inoshandiswa zvakanyanya muChina ndeyekuita. kupisa asphalt yakajairwa kusvika 140°C kana kupisa SBS yakagadziridzwa asphalt kusvika 170°C. Shandisa rori inoparadzira asphalt kupfapfaidza asphalt pamusoro peiyo yakaoma kana semi-yakaomarara base layer, wozoparadzira aggregate zvakaenzana. Iyo aggregate yakagadzirwa nemarara emarara ane saizi ye13.2 ~ 19mm. Inofanira kuva yakachena, yakaoma, isina-mamiriro ekunze, isina tsvina, uye ine chimiro chakanaka chechidimbu. Huwandu hwematombo hunofanirwa kunge huri pakati pe60% ne70% yenzvimbo yakazara yekugadzira.
Muyero weasphalt uye aggregate inodzorwa maererano nehuwandu hwehuwandu hwe1200kg·km-2 uye 9m3·km-2 maererano. Kuvaka zvinoenderana nechirongwa ichi kunoda kurongeka kwepamusoro muhuwandu hwekupfapfaidza asphalt uye kupararira kweaggregate, saka iyo asphalt gravel synchronous yekuisa chisimbiso rori inofanira kushandiswa pakuvaka. Pamusoro pesimende-yakagadzika gravel base iyo yakapfapfaidzwa kuburikidza, paradzira asphalt inopisa kana SBS yakagadziridzwa asphalt muhuwandu hunosvika 1.2 ~ 2.0kg·km-2, uye zvakaenzana kuparadzira jira revhu nechidimbu chimwe chete. saizi pamusoro. Saizi yegravel uye gravel particle size inofanirwa kuenderana nekukura kwechikamu cheasphalt kongiri yakadzikwa pane isingapinde mvura. Nzvimbo yaro inopararira ndeye 60% kusvika ku70% yemugwagwa wakazara, uye ipapo rubber tire roller inoshandiswa kugadzirisa kudzvinyirira 1 kusvika 2 nguva kuti iite. Chinangwa chekuparadzira giravhu resaizi imwe chete kuchengetedza mvura kuti isakuvadzwe nematairi emota dzekuvaka senge marori uye asphalt musanganiswa paver tracks panguva yekuvaka, uye kudzivirira iyo yakagadziridzwa asphalt kuti isanyungudiswe nepamusoro-tembiricha. uye inopisa asphalt musanganiswa. Gumbo richanamatira uye rinokanganisa kuvaka.
Nechepfungwa, matombo haabatanidzine. Paunenge uchigadzira asphalt musanganiswa, musanganiswa wepamusoro-tembiricha uchapinda mumipata pakati pematombo, zvichiita kuti iyo yakagadziridzwa asphalt membrane inyauke nekupisa. Mushure mekukunguruka uye kubatanidza, jena jena rinova Asphalt matombo anoiswa muzasi peasphalt structural layer kuti iite yese, uye "mafuta-akapfuma layer" anosvika 1.5cm anoumbwa pazasi peiyo dhizaini, iyo inogona. zvinobudirira kuita sejira risina mvura.