Anthu ambiri sanamvepo za luso lokonza mfuti za trenchless chifukwa dzina lake ndi lalitali kwambiri komanso losagwirizana, koma mbiri yake yapadziko lonse ndi yodabwitsa. U.S. Highway Strategic Research Programme imachitcha kuti cholimba kwambiri. ndi njira zokonzekera bwino.
American Highway Strategic Research Program? U.S. Strategic Highway Research Program ndi pulojekiti yayikulu kwambiri padziko lonse lapansi yofufuza zamsewu mpaka pano. Pambuyo pakuchita kwanthawi yayitali, ochita kafukufuku adapeza kuti malingaliro achikhalidwe ndi njira zoyesera ndizosiyana kwambiri ndi zomwe zikuchitika. Mavuto ena omwe amadza panthawi ya ntchito ndi ovuta kufotokoza ndi malingaliro achikhalidwe. Ndikofunikira kwambiri kuchita kafukufuku wasayansi ndi mwadongosolo kuti apange malamulo atsopano ndi miyezo yopangira mapangidwe, kuyesa ndi kukonza zomanga kuti zikwaniritse zosowa za misewu yayikulu.

Kodi n’chifukwa chiyani umisiri wokonza mfuti ndi mbiri yabwino kwambiri moti madipatimenti odziwika bwino ku United States amawatamanda kwambiri?
The trenchless ngalande kuwombera kukonza luso ntchito yomanga ndende ndi mkulu-makamaka mamasukidwe akayendedwe madzi opangidwa polima zipangizo gulu monga chuma chomangira, ndi kutsukidwa ndi grained miyala imodzi monga akaphatikiza. Ngalandezo zimatsukidwa ndi mphepo yothamanga kwambiri ndikupopera ndi zinthu zomangira. Njira zinayi zopangira kusakaniza ndi kupopera mafuta osanjikiza zomatira, zomangira ndi kuphatikiza, ndi zida zopopera mankhwala zimaphatikizidwa mu makina amodzi okonzera mfuti. Konzani kosatha ming'alu, ming'alu, ming'alu, ndi maenje pamiyala ya phula ndi simenti.
Osati kokha, luso lokonzekera mfuti lopanda trenchless lili ndi ntchito zambiri, kuphatikizapo misewu yothamanga kwambiri, yoyamba, yachiwiri, yachigawo ndi yatawuni; phula, simenti, misewu ya miyala ndi malo ena amisewu; mtengo womanga ndi wotsika ndipo ungapulumutse 50% zakuthupi; liwiro lokonzekera liri mofulumira, ndipo likhoza kutsegulidwa kwa magalimoto mwamsanga mutatha kukonza kuti muchepetse nthawi yotsekedwa; kamodzi kukonzedwa, palibe chifukwa chokonzekera kachiwiri, ndipo moyo wautumiki ndi wautali zaka 5-10.
Anthu ena angaganize kuti zomwe zili pamwambazi ndizokokomeza, koma katunduwa amadziwika ndi US Highway Strategic Research Program ndipo amadziwika kuti ndiyo njira yokhazikika komanso yokonzekera bwino. Zitha kuwoneka kuti ili ndi "luso lenileni" lake. Mukuganiza chiyani?