Ua ntej, siv 28 rau lub ru tsev × 35 hli tuab cement mortar leveling.

Siv thawj txheej ntawm cov vuas asphalt, nrog rau cov nplaum tig mus rau sab saud, thiab ncaj qha mus rau ntawm lub ru tsev raws li qab ntawm lub ru tsev. Ntawm ib kawg ntawm lub cornice ntawm lub hauv paus ntawm phab ntsa, txheej pib ntawm cov vuas asphalt txuas ntxiv 5 txog 10 hli. Kho lub hauv av nrog tus ntsia hlau 50.8 hli ntawm qab ntawm ob kawg thiab 25.4 hli ntawm sab, thiab tom qab ntawd muab nws sib npaug zos rau hauv kab rov tav ntawm ob tus ntsia hlau. Muab 2 tus ntsia hlau thiab ntes kab rov tav.

Muab thawj txheej ntawm cov vuas asphalt, so tawm 167mm ntawm thawj txheej ntawm cov vuas asphalt, thiab tom qab ntawd muab tag nrho cov vuas asphalt tso rau. Muab thawj lub cib asphalt tso rau ntawm qhov kawg ntawm phab ntsa thiab ntug ntawm thawj txheej ntawm cov cib asphalt raws li lub cornice. Kho nrog cov ntsia hlau ntawm 60.8mm ntawm ob qho kawg mus rau hauv qab thiab 35.4mm ntawm sab, tom qab ntawd muab ob lub ntsia hlau ntxiv rau hauv kab rov tav ntawm ob lub ntsia hlau thiab khi txoj kab rov tav.

Muab txheej thib ob ntawm cov vuas asphalt tso rau. Sab ntawm txheej thawj ntawm cov cib asphalt ntawm txheej thib ob yog staggered los ntawm ib nrab nplooj los ntawm sab ntawm txheej thawj ntawm cov cib asphalt. Hauv qab ntawm txheej thib ob ntawm cov vuas asphalt yog sib npaug nrog sab saum toj ntawm qhov sib koom ua ke ntawm txheej thawj ntawm cov vuas asphalt. Siv kab kab rov tav ntawm txheej thawj ntawm cov vuas asphalt los ua kom hauv qab ntawm txheej thib ob ntawm cov vuas asphalt sib luag rau lub cornice, thiab kho txheej thib ob ntawm cov vuas asphalt nrog cov ntsia hlau.

Tso txheej thib peb ntawm cov vuas asphalt, txiav tag nrho cov hniav ntawm thawj txheej ntawm cov vuas asphalt ntawm txheej thib peb ntawm cov vuas asphalt, stagger nws nrog thawj txheej ntawm cov vuas asphalt ntawm txheej thib ob ntawm cov vuas asphalt, ua kom ntug hauv qab ntawm txheej thib peb ntawm cov vuas asphalt sib npaug nrog sab saum toj ntawm qhov sib koom ua ke ntawm txheej thib ob ntawm cov vuas asphalt, thiab tom qab ntawd tso thiab kho nws nrog tag nrho txheej thib peb ntawm cov vuas asphalt.

Muab cov vuas asphalt tso rau ntawm lub qhov dej ntws. Cov vuas asphalt ntawm cov ru tsev sib tshuam yuav tsum tau muab tso rau ntawm lub qhov dej ntws tib lub sijhawm, lossis txhua sab yuav tsum tau tsim cais, thiab yuav tsum tau muab tso rau 75mm ntawm txoj kab nruab nrab ntawm lub qhov dej ntws. Tom qab ntawd muab cov vuas asphalt tso rau saum toj ntawm ib qho ntawm lub ru tsev thiab nthuav dav hla lub qhov dej ntws, kom cov vuas asphalt kawg ntawm txheej txuas ntxiv mus rau lub ru tsev sib ze tsawg kawg 300 hli, thiab tom qab ntawd muab cov vuas asphalt tso rau ntawm lub ru tsev sib ze thiab nthuav dav mus rau lub qhov dej ntws thiab cov vuas asphalt uas tau tso ua ntej, uas yuav tsum tau xaws ua ke. Cov vuas asphalt trench yuav tsum tau khi kom ruaj khov rau hauv qhov dej ntws, thiab cov vuas asphalt trench yuav tsum tau khi los ntawm kev kho thiab kaw lub qhov dej ntws.

Thaum tso cov vuas asphalt ridge, ua ntej kho me ntsis cov vuas asphalt kawg uas tau muab tso rau saum ob sab saum toj ntawm lub ridge thiab lub ridge, kom cov vuas asphalt ridge npog tag nrho cov vuas asphalt sab saum toj, thiab qhov dav ntawm cov ridges ntawm ob sab ntawm lub ridge yog tib yam. Tom qab ntsia hlau raug kho, pleev cov vuas asphalt uas raug nthuav tawm nrog cov kua nplaum asphalt.