Chikamu chekuisa composite geomembrane
Kushanda kwehupenyu hwekushanda kwecomposite geomembrane kunonyanya kutariswa nekuti firimu repurasitiki rinoiswa pasi pekurapwa kwemvura. Maererano nemitemo yenyika yeSoviet Union, firimu re polyethylene nehupamhi hwe 0.2m uye stabilizer ye hydraulic engineering inogona kushanda kwemakore 40 kusvika ku50 pasi pemvura yakachena uye makore makumi matatu kusvika makumi mana pasi pemamiriro emvura. Zhoutou Reservoir Dam pakutanga raive dhamu remadziro, asi nekuda kwekudonha kwedhamu, chikamu chepamusoro chemadziro epakati chakabviswa. Kuti ubate kushanda kwepamusoro-anti-seepage, anti-seepage inclined wall yakawedzerwa kune chigadziko. Zvinoenderana neratidziro yekuchengetedza uye kuora kweDhoutou Reservoir Dam, kuitira kubata nekudonha kwakashata kwepasi uye kudonha kwedhamu kwedhamu kunokonzerwa nekudzokororwa kwedhamu kwedhamu, zvimiro zvemuviri zvisingapindike senge dombo remaketeni grouting, kurwa pamusoro pekugezera, kutsvaira uye. inobata chidzitiro chekudzosera kumashure, uye high-pressure jet grouting impervious plate wall yakagamuchirwa maererano ne vertical seepage kudzivirira.
Hunhu hwecomposite geomembrane: Iyo inosanganiswa geomembrane ndeye geomembrane zvinhu zvinoumbwa nefirimu repurasitiki se anti-seepage substrate uye nonwoven jira. Basa rayo rinopesana neseepage rinoenderana ne-anti-seepage basa refirimu repurasitiki. Mamiriro ayo ekunetsana ndeokuti kusapinda kwemufirimu wepurasitiki kunovhara nzira yekudonha kwedhamu repasi kubva mumvura, inoshingirira kumanikidza kwemvura uye kuchinjika kune deformation yedhamu nekuda kwesimba rayo rakakura uye kunonoka kunonoka; Machira asina kurukwa zvakare ikemikari yezvinhu zvepfupi polymer fiber, iyo inoumbwa kuburikidza netsono kubaya kana kupisa kwekubatana, uye ine yakanyanya kusimba simba uye kunonoka. Mushure mekubatwa nemafirimu epurasitiki, haingowedzere simba rekusimba uye kupikisa kwemafirimu epurasitiki, asi zvakare inowedzera friction coefficient yenzvimbo yehondo nekuda kwekukasharara kwemachira asina kurukwa, ayo anobatsira mukugadzikana kweanosanganiswa geomembranes. uye kuvanza layers.
Naizvozvo, hupenyu hwekushanda kweiyo composite geomembrane yakakwana kugutsa hupenyu hwekushanda hunokumbirwa kudzivirira kubuda kwedhamu.
Rusvingo rwakarerekera kumusoro rwakafukidzwa necomposite geomembrane yekudzivirira kubuda kwemvura, nechikamu chezasi ichitevera vertical seepage kudzivirira madziro uye chikamu chepamusoro chichisvika pakakwirira 358.0m (0.97m kumusoro kupfuura cheki mafashamo).
High tembiricha kuramba, yakanaka antifreeze kuita.
Parizvino, mafirimu epurasitiki anoshandiswa kudzora seepage kumba nekune dzimwe nyika anosanganisira polyvinyl chloride (PVC) uye polyethylene (PE), ayo ari epolymer kemikari inochinjika zvinhu zvine huremu hushoma, kunonoka kwakasimba, uye kuchinjika kwakanyanya kune deformation.
Panguva imwecheteyo, vane kurwisa kwakanaka kubhakitiriya uye makemikari sensitization, uye havatyi acid, alkali, uye corrosion yemunyu.
Nguva yekutumira: Mar-24-2023