Lefats'eng la kaho, tšebeliso ea thepa ea boleng bo botle e bohlokoa bakeng sa bophelo bo bolelele le katleho ea morero. Ha ho tluoa tabeng ea ho tsitsisa mobu le drainage, geotextiles ke tharollo ea khetho, e fanang ka matla a phahameng le ho tšoarella. Mofuta o khethehileng oageotextilelesela le bitsoang filthara le ntse le tsebahala haholo bakeng sa thepa ea lona e phahameng ea ho sefa, e le lumellang ho laola phallo ea metsi ka nepo le ho thibela khoholeho ea mobu.
Lesela la filtration ke mofuta o ikhethileng oa geotextile o etselitsoeng ho sefa likaroloana tse ntle tse tsoang metsing. E sebelisoa hangata lits'ebetsong tse fapaneng tsa kaho joalo ka kaho ea litsela le seporo, mabota a ho boloka, matamo le lithōle. Mosebetsi o ka sehloohong oa lesela lena ke ho arola likarolo tsa mobu le ho fana ka motheo o tsitsitseng oa lisebelisoa tse ling tsa mohaho.
Moqapi o ikhethang oalesela la sefae lumella metsi ho feta ha e ntse e thibela ho falla ha likaroloana tsa mobu. Ts'ebetso ena ea ho hloekisa e thibela ho koala le ho boloka matla a hydraulic a tsamaiso ea geotechnical, ho netefatsa hore metsi a ntse a phalla. Masela a sefa a phetha karolo ea bohlokoa ho ntlafatseng sebopeho sa sebopeho ka ho thibela khoholeho ea mobu le ho boloka metsi a phallang hantle.
Bokhoni ba ho sefa ba lesela la sefa bo molemo haholo bakeng sa lits'ebetso tsa drainage tse ka tlas'a lefatše. Ha lehlohlojane kapa lejoe le pshatlehileng le sebelisoa e le motheo, le thibela ho koala le ho lumella metsi ho feta ka bolokolohi. Mokhoa ona o etsa bonnete ba hore metsi a feteletseng a tlosoa ka katleho litseleng, masimong le libakeng tse ling tse hahiloeng, kahoo ho khothalletsa botsitso le ho thibela tšenyo e amanang le metsi.
Ntle le lits'ebetso tsa drainage, masela a sefa hangata a sebelisoa e le likarohano lipakeng tsa mekhahlelo e fapaneng ea mobu. E sebetsa e le tšitiso ea ho thibela ho tsoakana ha mobu o mahoashe le mobu o motle, ho felisa kotsi ea ho rarolla phapang. Ho itšehla thajana hona ha ho matlafatse botšepehi ba sebopeho sa morero oa moaho feela, hape ho sireletsa tikoloho ka ho thibela litšila hore li se ke tsa fallela mobung.
Ha u khetha lesela la filthara, ho bohlokoa ho nahana ka lintlha tse joalo ka sekhahla sa phallo, ho kenella le ho tšoarella. Merero e fapaneng e hloka litlhaloso tse fapaneng, 'me ho buisana le moenjineri ea nang le boiphihlelo oa geotechnical ho ka thusa ho tseba lesela le letle ka ho fetisisa la sefe bakeng sa ts'ebeliso e itseng.
Qetellong, li-geotextiles, le masela a filthara ka ho khetheha, ke litharollo tse fapaneng le tsa bohlokoa mererong ea kaho. Bokhoni ba eona bo phahameng ba ho hloekisa bo etsa hore e be khetho e ka tšeptjoang bakeng sa ho tsitsisa mobu, tsamaiso ea metsi le tšireletso ea tikoloho. Ka ho laola ho phalla ha metsi ka katleho le ho thibela khoholeho ea mobu, lesela la sefa le tiisa nako e telele le katleho ea merero ea kaho.
Nako ea poso: Oct-13-2023