Ntau tus neeg yeej tsis tau hnov ​​​​txog trenchless trench gunning kho tshuab vim nws lub npe ntev dhau lawm thiab me ntsis convoluted, tab sis nws lub koob npe nrov thoob ntiaj teb yog txawv tshaj plaw. US Highway Strategic Research Program hu nws qhov ruaj khov tshaj plaws. thiab kev kho kom zoo.
American Highway Strategic Research Program? US Strategic Highway Research Program yog qhov kev tshawb fawb loj tshaj plaws hauv ntiaj teb los txog niaj hnub no. Tom qab siv sijhawm ntev, cov kws tshawb fawb pom tias cov qauv tsim qauv thiab cov qauv kev sim muaj qhov sib txawv ntawm qhov tseeb. Qee qhov teeb meem uas tshwm sim thaum ua haujlwm yog qhov nyuaj los piav qhia nrog cov ntsiab lus ib txwm muaj. Nws yog ib qho tsim nyog yuav tau ua cov kev tshawb fawb thiab kev tshawb fawb los tsim cov txheej txheem tshiab thiab cov qauv kev tsim, kev sim thiab kev tsim kho kom tau raws li qhov xav tau ntawm kev tsim kho kev loj.

Vim li cas trenchless trench gunning kho tshuab muaj lub koob npe nrov uas muaj npe nrov hauv Tebchaws Meskas muaj kev qhuas rau nws?
Lub trenchless trench gunning kho siv tshuab siv high-concentration thiab high-viscosity dej-raws li polymer composite cov ntaub ntawv raws li cov khoom sib txuas, thiab ntxuav ib leeg-grained gravel raws li aggregate. Cov trench yog ntxuav nrog cov cua kub siab thiab txau nrog cov khoom sib txuas. Plaub txheej txheem ntawm kev sib xyaw thiab txau cov nplaum txheej roj, cov khoom siv sib txuas thiab sib sau ua ke, thiab cov khoom siv tshuaj tsuag tau muab tso rau hauv ib lub tshuab kho phom. Txhim kho cov kab nrib pleb, tawg, tawg, thiab cov poholes ntawm asphalt thiab cement pavements.
Tsis tas li ntawd xwb, lub trenchless gunshot kho tshuab muaj ntau yam kev siv, nrog rau kev kub ceev, thawj-chav kawm, thib ob-chav kawm, county thiab nroog txoj kev; asphalt, cement, gravel txoj kev thiab lwm qhov chaw; tus nqi tsim kho tsawg thiab tuaj yeem txuag tau 50% cov khoom siv; kev kho qhov nrawm nrawm, thiab nws tuaj yeem qhib rau kev khiav tsheb tam sim tom qab kho kom txo lub sijhawm kaw tsheb; ib zaug kho, tsis tas yuav rov kho dua, thiab kev pabcuam lub neej ntev li 5-10 xyoo.
Qee tus neeg yuav xav tias cov ntsiab lus saum toj no yog exaggerated, tab sis cov khoom no tau lees paub los ntawm US Highway Strategic Research Program thiab tau lees paub los ntawm nws yog txoj kev kho kom ruaj khov thiab zoo tshaj plaws. Nws tuaj yeem pom tias nws muaj nws tus kheej "muaj peev xwm tiag tiag". Koj xav li cas?