Ntchito yomanga malo otayirako zinyalala ku Kunming

Dzina la polojekiti:Ntchito yomanga malo otayirako zinyalala ku Kunming
Zida: HDPE Geomembrane, Geotextile, Geosynthetic Clay Liner ndi Three-Dimensional Composite Drainage Network
Mkhalidwe wa polojekiti:
Mu 2023, Boma la Kunming, m'chigawo cha Yunnan, lidapeza kuti kutayirako sikungakwanire, zomwe zidapangitsa kulephera kuthana ndi zinyalala m'derali munthawi yake komanso ndalama zambiri zotayira zinyalala. Zinyalala zolimba zamatauni m'maboma (mizinda) ndi zigawo zizikhalabe 100% nthawi ya 2022-2023. Boma likufuna kumaliza ntchito yotaya zinyalala ku Kunming yokhala ndi malo okwana 4.4848 miliyoni masikweya mita pofika Disembala 31, 2023.

Ntchito yomanga:
Geomembrane, ngati chinthu choteteza zachilengedwe, chimakhala ndi ductility yabwino komanso kusinthasintha kwamphamvu. Ngati maziko okhala ndi mapindikidwe akulu amagwiritsidwa ntchito ngati maziko a mawonekedwe osasunthika, kugwiritsa ntchito geomembrane kumatha kutengera kusinthika kwa maziko. Panthawi imodzimodziyo, kupanga geomembrane kumakhala kosavuta, zofunikira zogulira zida sizokwera, kulemera kwake ndi kopepuka, ndipo n'kosavuta kugwiritsira ntchito ndi kusunga kusiyana ndi zipangizo zomwe sizingawonongeke. Kumanga kwa geomembrane ndikosavuta ndipo nthawi yomanga ndi yochepa. Panthawi imodzimodziyo, kuchokera kuzinthu zachuma, ndalama za geomembrane ndizochepa, mtengo wokwanira ndi wotsika, makamaka poyerekeza ndi ndondomeko yachikhalidwe yopewera zowonongeka, ubwino wachuma ndi woonekeratu.

Ma geotextiles amagwiritsidwa ntchito mogwirizana ndi ma projekiti otayira pansi ndipo amalowetsedwa munthaka kuti pakhale bata pansi. Zosanjikiza za geotextile zimatha kuloleza madzi kuti aziyandama momasuka munthaka popanda kukokoloka. Geotextile itha kugwiritsidwanso ntchito kulekanitsa nthaka ndikulimbitsa nthaka ngati maziko a polojekiti ya landill. Ma geotextiles amatha kugwiritsidwa ntchito pama projekiti osiyanasiyana chifukwa cha mphamvu zake komanso mawonekedwe a ngalande. The Polyester(PET) Filament Nonwoven Geotextile ndi mtundu wa zinthu zomwe zimatha kugwiritsidwa ntchito polekanitsa, kusefa, kulimbikitsa, kuteteza, kusunga kapena kukhetsa nthaka.

Geosynthetic Clay Liner (GCL) imapangidwa ndi zigawo zitatu, zigawo zakumwamba ndi zapansi ndizotsatira geotextiles, makamaka zimagwira ntchito yoteteza ndi kulimbikitsa, kotero kuti imakhala ndi mphamvu zinazake zong'ambika ndi mphamvu zamanjenje; Pakati ndi sodium bentonite granular wosanjikiza, ndi kukonzedwa ku chilengedwe dongo mchere zakuthupi, ndi mkulu expansibility ndi mkulu madzi mayamwidwe mphamvu, otsika permeability madzi pamene chonyowa, makamaka amagwira ntchito odana seepage. Makamaka ntchito zachilengedwe zomangamanga zinyalala zinyalala, madamu mobisa, mobisa zomangamanga zomangamanga ndi ntchito zina, kuthetsa kusindikiza, kudzipatula, odana ndi kutayikira mavuto, zotsatira zabwino, amphamvu kukana kuwonongeka. Amakhala ndi luso lapadera lodzitsekera mozungulira malowedwe, kudzichiritsa pompopompo, komanso kudzikongoletsa pazolumikizana.

Atatu dimensional kompositi drainage network ndi mtundu watsopano wa ngalande za geotextile. Ndi geonet imodzi yokhala ndi mbali zitatu yopangidwa ndi singano ziwiri zokhomeredwa ndi ma geotextiles osaluka. Ma network atatu a kompositi drainage network amakhala ndi nthiti yokhuthala yamitundu itatu, komanso kung'ambika pamwamba ndi pansi. Ma geotextiles okhala ndi mbali ziwiri amapanga "sefera - ngalande - mpweya wabwino - chitetezo" ntchito yonse, ndipo amatha kusintha mchenga ndi miyala yachikhalidwe. Njira yake yokonza pore imatha kukhetsa madzi apansi panthaka mwachangu, kutsekereza madzi a capillary pansi pa katundu wambiri pakumanga, kusunga makulidwe ena ndikupereka katundu wabwino wamadzimadzi. Panthawi imodzimodziyo, imathanso kugwira ntchito yodzipatula komanso kulimbikitsa maziko.