Netiweki yolumikizira madzi ndi chinthu chomwe chimagwiritsidwa ntchito kwambiri pa ntchito za misewu, malo otayira zinyalala, kukonza malo apansi panthaka ndi ntchito zina. Ndiye ubwino ndi kuipa kwake ndi kotani?
Ubwino waukulu wa netiweki yothira madzi yophatikizika
1, Ntchito yabwino kwambiri yoyeretsera madzi
Ukonde wophatikizana wa madzi umagwiritsa ntchito kapangidwe ka maukonde atatu (nthawi zambiri makulidwe ake ndi 5-8 mm），Nthiti yoyima yapakati imapanga njira yopititsira madzi mosalekeza yokhala ndi chithandizo chopendekera, ndipo mphamvu ya madzi otuluka ndi yowirikiza ka 5-8 kuposa ya miyala yachikhalidwe. Dongosolo lake losamalira ma pore limatha kupirira katundu wambiri (3000 kPa Compressive load) limasunga ma hydraulic conductivity okhazikika, ndipo kusuntha pa unit time kumatha kufika 0.3 m³/m²，Ndikoyenera makamaka pazinthu zapadera za geological monga malo ozizira a nthaka ndi chithandizo chofewa cha maziko.
2, High mphamvu ndi mapindikidwe kukana
Yopangidwa ndi polyethylene yokhuthala kwambiri (HDPE) Chimake cha maukonde chophatikizika ndi ulusi wa polypropylene chili ndi mphamvu yokoka ya 20-50 kN/m2, Modulus yokakamiza imaposa ya geogrid yachikhalidwe ndi nthawi zoposa zitatu. Poyesa kwenikweni magawo oyenda kwambiri, kukhazikika kwa subgrade yoyikidwa ndi netiweki yophatikizana yamadzi kumachepetsedwa ndi 42%, ndipo kuchuluka kwa ming'alu ya panjira kumachepetsedwa ndi 65%.
3, kapangidwe kophatikizana ka ntchito zosiyanasiyana
Kudzera mu geotextile (200 g/m²Standard) ndi kapangidwe kake ka mesh core ya magawo atatu nthawi imodzi kumakwaniritsa ntchito zitatu za "reverse filtration-drainage-reinforcement":
（1） Kukula kogwira mtima kwa tinthu tating'onoting'ono ta nsalu yopanda ulusi> 0.075mm Tinthu ta dothi la
（2）Malo ozungulira a maukonde amatumiza madzi olowa m'madzi mwachangu kuti madzi a m'mitsempha asakwere
（3）Nthiti zolimba zimathandizira mphamvu yonyamula maziko ndikuchepetsa kusintha kwa subgrade
4, kusinthasintha kwa chilengedwe ndi kulimba
Kukana kwa asidi ndi alkali pazinthuzo ndi mpaka pH 1-14, Pa-70 ℃ Mpaka 120 ℃ Kutentha kumasunga magwiridwe antchito okhazikika. Pambuyo pa maola 5000 a mayeso okalamba a UV, kuchuluka kwa mphamvu yosungira> 85%, nthawi ya ntchito imatha kufika zaka zoposa 50.
Ndipo. Zofooka za kugwiritsa ntchito netiweki yophatikizana yamadzi
1, Kukana kopanda mphamvu
Makulidwe a maukonde apakati nthawi zambiri amakhala 5-8 mm, Amabowoledwa mosavuta pamwamba pa maziko okhala ndi miyala yakuthwa.
2, mphamvu yochepa yoyeretsera madzi
Pansi pa mikhalidwe ya kuyenda kwa madzi mwachangu (liwiro ＞0.5m/s）， Pa zinthu zolimba zopachikidwa (SS） Mphamvu yolumikizira madzi ndi 30-40% yokha, ndipo iyenera kugwiritsidwa ntchito ndi matanki osungira madzi kapena zigawo zosefera mu ntchito zotsukira zinyalala.
3, Zofunikira paukadaulo womanga molimbika
（1） Kusalala kwa malo oyambira kuyenera kulamulidwa ≤15mm/m2
（2）Kufunika kwa m'lifupi mwa mtunda 50-100 mm， Gwiritsani ntchito zida zapadera zowotcherera zotentha
（3） Kutentha kozungulira kuyenera kukhala -5 ℃ Mpaka 40 ℃ Pakati pa nyengo yoipa kwambiri kungayambitse kusintha kwa zinthu.
4, mtengo woyambira wokwera kwambiri
Poyerekeza ndi mchenga ndi miyala yachikhalidwe yotulutsira madzi, mtengo wa zinthuzo umawonjezeka ndi pafupifupi 30%, koma mtengo wonse wa moyo umachepetsedwa ndi 40% (kuchepetsa kuchuluka kwa kukonza ndi kuchuluka kwa kukonza maziko).
Chimodzi. Ntchito yaukadaulo
1. Ndondomeko yokonza bwino msewu wa m'matauni
Mu kapangidwe ka msewu wa phula, kuyika netiweki yophatikizana yamadzi pakati pa gawo la macadam lokonzedwa bwino ndi gawo lotsika kumatha kufupikitsa njira yotulutsira madzi kukhala makulidwe a gawo loyambira ndikuwonjezera magwiridwe antchito amadzi.
2、dongosolo loletsa kutaya zinyalala
Gwiritsani ntchito "composite drainage network" + HDPE Impervious membrane "kapangidwe kophatikizana:
（1）Maukonde oyendetsera madzi otayira madzi, kuchuluka kwa madzi otayira madzi ≤1×10⁻⁴cm/s
（2）2mm Thick HDPE Membrane imapereka chitetezo chawiri choletsa kulowa kwa madzi
3, ntchito yomanga mzinda wa Sponge
Kuyika minda yamvula m'magawo atatu ndi malo obiriwira obirira, mogwirizana ndi PP Kugwiritsa ntchito malo osungiramo madzi modular kungachepetse kuchuluka kwa madzi otuluka kuchokera pa 0.6 mpaka 0.3 ndikuchepetsa kuchuluka kwa madzi m'mizinda.
Nthawi yotumizira: Marichi-20-2025
