Raws li cov ntaub ntawv uas feem ntau pom nyob rau hauv ntau lub tsev tsim, geogrids tseem nyob rau hauv kev xav tau zoo, yog li yuav ua li cas khaws thiab thauj cov ntaub ntawv yuav khoom kuj yog ib qho kev txhawj xeeb ntawm cov neeg siv khoom.
1. Cia ntawm geogrid.
Geogrid yog cov khoom siv geosynthetic tsim los ntawm cov khoom siv tshwj xeeb xws li polypropylene thiab polyethylene. Nws muaj qhov tsis zoo ntawm kev laus yooj yim thaum raug ultraviolet lub teeb. Yog li ntawd, steel-yas geogrid reinforced daim phiaj yuav tsum tau muab tso rau hauv ib chav nrog ntuj cua thiab lub teeb cais; Lub sijhawm sib sau ntawm cov tav yuav tsum tsis pub tshaj 3 lub hlis hauv tag nrho. Yog tias lub sijhawm khaws cia ntev dhau lawm, nws yuav tsum tau rov kuaj xyuas dua; thaum paving, xyuam xim rau txo lub sij hawm ntawm ncaj qha raug rau tej yam ntuj tso teeb kom tsis txhob aging.
2. Kev tsim cov khoom siv dag zog.
Txhawm rau tiv thaiv Geshan los ntawm kev puas tsuaj ntawm qhov chaw tsim kho, yuav tsum muaj 15-centimeter-thick av filling txheej ntawm cov saw hlau ntawm cov cuab yeej siv tshuab thiab cov geogrid; nyob rau hauv 2m ntawm qhov chaw tsim kho nyob ib sab, siv lub compactor nrog tag nrho qhov hnyav ntawm tsis ntau tshaj 1005kg. Los yog compact lub filling nrog rau cov menyuam compactor; Thaum lub sij hawm tag nrho cov txheej txheem sau, qhov kev txhawb nqa yuav tsum tau tiv thaiv kom tsis txhob txav mus los, thiab yog tias tsim nyog, lub prestress ntawm 5 kN yuav tsum tau siv rau qhov kev txhawb zog nrog cov nqaj nro los ntawm daim phiaj mesh txhawm rau tiv thaiv kev puas tsuaj ntawm cov xuab zeb compaction thiab tshem tawm.
3. Tsis tas li ntawd, txoj kev thauj khoom feem ntau yog siv hauv kev thauj mus los ntawm geogrids, vim tias kev thauj mus los hauv dej tuaj yeem nqus dej noo thiab ntub dej.
Post lub sij hawm: Apr-12-2022