Pakalipano, dziko langa likugwiritsa ntchito kuwotcha zinyalala zapakhomo, ndipo kutayirako zinyalala zoyambira kudzachepa pang'onopang'ono. Koma mzinda uliwonse umafunika malo otayirapo malo adzidzidzi komanso kutayirako phulusa. Kumbali inayi, pakali pano pali malo ambiri otayira zinyalala omwe adzazidwa ndipo akufunika kutsekedwa. Chifukwa chake, m'tsogolomu, geosynthetics idzakhala ndi chiyembekezo chachikulu chamsika pakutseka kwa zinyalala zotayirira komanso kubisa kwakanthawi kotayiramo ntchito.
Chomwe chimatchedwa kutseka chivundikiro chimatanthawuza kuti pamene malo otayirapo zinyalala atadzazidwa, chophikira chophatikizika chiyenera kumangidwa pamwamba pake kuti chiteteze madzi a mvula kuti asalowetse madzi amvula ndi kuphulika kwa gasi, ndipo zomera zikhoza kubzalidwa kuti zikhale zobiriwira ndi kukonzanso. Pali mitundu itatu ikuluikulu ya zida za geosynthetic zomwe zimagwiritsidwa ntchito pachivundikiro chamunda: otsika kachulukidwe polyethylene (LDPE) geomembrane, bulangeti lopanda madzi la bentonite ndi ukonde wothira madzi. Pakati pawo, LDPE geomembrane ili ndi ductility yabwino, si yosavuta kung'ambika, ndipo imatha kugwira ntchito yabwino yotsutsa-seepage ndi kusindikiza mpweya. The anti-seepage chotchinga katundu wa bentonite madzi bulangeti ndi zabwino kwambiri. Poyerekeza ndi geomembrane, sichingaduliretu nthunzi wamadzi pansi pa chivundikirocho, chomwe chimathandiza kwambiri kukula kwa zomera.
Kuphimba kwakanthawi kotayirako zinyalala zomwe zili muntchito ndikuphimba malo a zinyalala omwe ali ndi geosynthetics m'malo omwe sanatayidwe kwakanthawi kuti achepetse kulowa kwa madzi amvula komanso kusefukira kwa mpweya wotayira. Kuphimba kwakanthawi kumagwiritsidwanso ntchito pokonza malo oyipitsa pofuna kupewa kuti mipweya yowopsa isatulukire mumlengalenga. M'masiku oyambirira, ma tarpaulins, mafilimu, ndi zina zotero ankagwiritsidwa ntchito pobisala kwakanthawi, koma mavuto monga kulephera kwa anti-seepage ndi kusindikiza mpweya komanso kung'ambika kosavuta kwa ma welds anali osavuta kuchitika. Pakali pano, zotayiramo nthaka zili ndi zofunika zapamwamba komanso zapamwamba za malo otsekedwa otsekedwa. Malo ena otayiramo pansi amagwiritsa ntchito 1mm wandiweyani wa HDPE geomembrane pakubisa kwakanthawi. Zotsatira za kusindikiza pansi ndizabwinoko.
Nthawi yotumiza: Mar-03-2022