Melemo le mathata a marangrang a metsi a kopantsoeng

Marangrang a metsi a kopantsoeng ke thepa e sebelisoang haholo mererong ea litsela, libakeng tsa ho lahla lithōle, nts'etsopele ea sebaka se ka tlas'a lefatše le mererong e meng. Joale, melemo le mathata a eona ke afe?

1. Melemo ea mantlha ea marang-rang a metsi a kopaneng

1, Tshebetso e ntle haholo ea drainage

Letlooa la ho ntsha metsi le kopaneng le nka sebopeho sa mantlha sa letlooa la mahlakore a mararo (botenya hangata ke 5-8 mm）， Khopo e bohareng e otlolohileng e etsa kanale e tsoelang pele ea ho ntsha metsi ka tšehetso e sekametseng, 'me katleho ea ho ntsha metsi e makhetlo a 5-8 ho feta lera la setso la lehlohlojane. Sistimi ea eona ea tlhokomelo ea li-pore e ka mamella meroalo e phahameng (3000 kPa Moroalo o hatellang) e boloka conductivity e tsitsitseng ea hydraulic, 'me ho falla ka nako ea yuniti ho ka fihla ho 0.3 m³/m²，E loketse haholo maemo a khethehileng a jeoloji joalo ka libaka tsa mobu o hatselitsoeng le kalafo ea motheo o bonolo.

2, Matla a phahameng le ho hanyetsa deformation

E entsoe ka polyethylene e nang le sekgahla se phahameng (HDPE) Karolo e ka sehloohong ea letlooeng e kopantsoeng le faeba ea polypropylene e na le matla a ho hula a litsela tse peli a 20-50 kN/m, Modulus e hatellang e feta ea geogrid ea setso ka makhetlo a fetang 3. Tekanyong ea 'nete ea likarolo tsa sephethephethe tse boima, ho lula ha subgrade e behiloeng ka marang-rang a kopaneng a drainage ho fokotsehile ka 42%, 'me ho ata ha mapetso a litsela ho fokotsehile ka 65%.

3, moralo o kopaneng oa mesebetsi e mengata

Ka geotextile (200 g/m²Standard) le sebopeho se kopaneng sa motheo wa letlooeng la mahlakore a mararo ka nako e le nngwe se phethahatsa mesebetsi e meraro ya "ho matlafatsa ho sefa-ho ntsha metsi ka morao":

(1) Boholo ba karoloana e sebetsang hantle ea lesela le sa lohiloeng lera le ka holimo ＞0.075mm. Likaroloana tsa mobu tsa

（2）Bohare ba letlooeng bo romela metsi a kenang ka potlako kantle ho naha ho thibela metsi a capillary ho nyoloha

（3）Likhopo tse thata li ntlafatsa bokhoni ba ho jara motheo le ho fokotsa ho fetoha ha subgrade

4, ho ikamahanya le maemo le ho tšoarella ha tikoloho

Mefuta e fapaneng ea khanyetso ea asiti le alkali ea thepa e fihla ho pH 1-14, At-70 ℃ Ho isa ho 120 ℃ Mefuta e fapaneng ea mocheso e boloka ts'ebetso e tsitsitse. Kamora lihora tse 5000 tsa teko ea botsofali e potlakileng ea UV, sekhahla sa ho boloka matla ＞85%, Bophelo ba ts'ebeletso bo ka fihla ho lilemo tse fetang 50.

Hape. Meeli ea ts'ebeliso ea marang-rang a metsi a kopaneng

1, Ho hanyetsa ho phunya ho sa lekaneng

Botenya ba mantlha ba letlooeng ka kakaretso ke 5-8 mm, E phunyeletsoa habonolo holim'a bokaholimo ba motheo bo nang le lehlohlojane le bohale.

2, Bokhoni bo fokolang ba ho hloekisa metsi

Tlas'a maemo a phallo ea metsi a lebelo le phahameng (lebelo ＞0.5m/s）， Bakeng sa lintho tse tiileng tse emisitsoeng (SS） Bokgoni ba ho thibela ke 30-40% feela, 'me e lokela ho sebelisoa le litanka tsa sedimentation kapa likarolo tsa sefe mererong ea kalafo ea likhoerekhoere.

3, Litlhoko tsa theknoloji ea kaho e thata

（1）Bophara ba sefofane sa motheo bo lokela ho laoloa ≤15mm/m

（2）Bophara ba letheka bo hlokahalang 50-100 mm, Amohela lisebelisoa tse khethehileng tsa ho tjheseletsa tse chesang tse qhibilihang

（3）Mocheso o tloaelehileng o lokela ho ba -5 ℃ Ho isa ho 40 ℃ Pakeng tsa, boemo ba leholimo bo feteletseng bo ka lebisa habonolo ho feto-fetoha ha thepa

4, Litšenyehelo tse phahameng tsa matsete a pele

Ha ho bapisoa le lera la metsi la lehlabathe le lehlohlojane la setso, litšenyehelo tsa thepa li eketseha ka hoo e ka bang 30%, empa litšenyehelo tsohle tsa potoloho ea bophelo li fokotsehile ka 40% (ho fokotsa makhetlo a tlhokomelo le sekhahla sa tokiso ea motheo).

E 'ngoe. Sesebelisoa sa boenjiniere

1, Morero oa ntlafatso ea litsela tsa masepala

Sebopehong sa tsela ea sekontiri, ho beha marang-rang a kopaneng a ho ntsha metsi pakeng tsa lera la macadam le nang le maemo le lera le ka tlase ho ka khutsufatsa tsela ea ho ntsha metsi ho ea botenya ba lera la motheo le ho ntlafatsa katleho ea ho ntsha metsi.

2, Sistimi e thibelang ho dutla ha lithōle

Amohela "marangrang a metsi a kopantsoeng" + HDPE Lera le sa keneleng metsi "sebopeho se kopaneng:

（1）Litataiso tsa marangrang a drainage leachate, coefficient ea ho kenella ha metsi ≤1×10⁻⁴cm/s

（2）2mm Thick HDPE Membrane e fana ka tšireletso e habeli khahlanong le ho dutla ha metsi

3, Morero oa kaho ea toropo ea sponge

Ho beha mahlakore a mararo lirapeng tsa pula le libakeng tse tala tse tetebetseng, ho sebelisana le PP Tšebeliso ea matamo a modular e ka fokotsa coefficient ea metsi a phallang ho tloha ho 0.6 ho ea ho 0.3 le ho fokotsa ho tlala ha metsi litoropong.