Te geomembrane o te tāhuna puna wai
Whakaahuatanga Poto:
- Ko ngā geomembrane e whakamahia ana mō ngā tāpua wai he mea hanga ki ngā rauemi polymer, ko te polyethylene (PE), ko te polyvinyl chloride (PVC), me ētahi atu. He tino iti te uruhanga wai o ēnei rauemi, ā, ka taea te ārai i te wai kia uru. Hei tauira, ka puta te polyethylene geomembrane mā te tauhohenga polymerization o te ethylene, ā, he tino kikī tōna hanganga ngota, kāore e taea e ngā ngota wai te haere mā roto.
- Ko ngā geomembrane e whakamahia ana mō ngā tāpua wai he mea hanga ki ngā rauemi polymer, ko te polyethylene (PE), ko te polyvinyl chloride (PVC), me ētahi atu. He tino iti te uruhanga wai o ēnei rauemi, ā, ka taea te ārai i te wai kia uru. Hei tauira, ka puta te polyethylene geomembrane mā te tauhohenga polymerization o te ethylene, ā, he tino kikī tōna hanganga ngota, kāore e taea e ngā ngota wai te haere mā roto.
1.Ngā Āhuatanga Mahi
- Te Mahi Ārai-Pakū:
Koinei te mahi tino nui o ngā geomembrane i roto i te whakamahinga o ngā tāke wai. Ka taea e ngā geomembrane kounga teitei te eke ki te 10⁻¹² - 10⁻¹³ cm/s, me te mea ka ārai katoa i te rerenga o te wai. Ki te whakatauritea ki te paparanga uku ātete-mimi tuku iho, he nui ake te whakamiharo o tōna pānga ātete-mimi. Hei tauira, i raro i te pēhanga o te upoko wai kotahi, ko te nui o te wai e mimi ana i roto i te geomembrane he wāhanga iti noa iho o tērā i roto i te paparanga uku ātete-mimi. - Te Mahi Ārai-Pō:
I te wā e whakamahia ana ngā geomembranes ki ngā tāke wai, ka werohia pea e ngā mea koi pērā i ngā kōhatu me ngā manga i roto i te tinana o te tāke. He kaha teitei te ātete-wero o ngā geomembranes pai. Hei tauira, ko ētahi geomembranes hiato he paparanga whakakaha muka ā-roto ka taea te ātete ki te wero. I te nuinga o te wā, ka taea e te kaha ātete-wero o ngā geomembranes whai tohu te eke ki te 300 - 600N, kia kore ai e pakaru wawe i roto i te taiao uaua o te tinana o te tāke. - Ātete ki te koroheketanga:
Nā te mea he roa te ora o ngā tāhuna wai, me ātete pai ngā geomembranes ki te koroheketanga. Ka tāpirihia ngā matū ārai-koroheketanga i te wā o te tukanga hanga o ngā geomembranes, kia taea ai e rātou te pupuri i te mahi pumau mō te wā roa i raro i te awe o ngā āhuatanga taiao pēnei i ngā hihi ultraviolet me ngā huringa pāmahana. Hei tauira, ko ngā geomembranes i tukatukahia ki ngā whakatakotoranga me ngā tikanga motuhake ka taea te whai ora ratonga mō te 30 - 50 tau i waho. - Te Āheitanga ki te Whakarerekē i te Āhua:
Ka pāngia te tāhuna e ētahi momo whakarerekētanga pēnei i te taunga me te nekehanga i te wā e penapena ana i te wai. Ka taea e ngā geomembranes te urutau ki ēnei momo whakarerekētanga me te kore e pakaru. Hei tauira, ka taea e rātou te totoro me te piko ki tētahi taumata me te taunga o te tinana o te tāhuna. Ko te kaha o te kume ka eke ki te 10 - 30MPa, ka taea ai e rātou te tu atu i te ahotea i puta mai i te whakarerekētanga o te tinana o te tāhuna.
kia rite ki ngā hiahia o te kaupapa. Ko te matotoru o te geomembrane he 0.3mm ki te 2.0mm te nuinga.
- Ārai-uru: Me whakarite kia pai te ārai-uru o te geomembrane kia kore ai e uru te wai i roto i te oneone ki roto i te kaupapa.
2. Ngā Kaupapa Matua o te Hanganga
- Te Maimoatanga Tūāpapa:
I mua i te whakatakotoranga o ngā geomembrane, me papatahi, me mārō hoki te turanga o te tāhuna. Me tango atu ngā mea koi, ngā taru kino, te oneone koretake me ngā toka i runga i te mata o te turanga. Hei tauira, ko te hapa papatahi o te turanga me whakahaere i roto i te ±2cm. Mā tēnei ka ārai i te rakuraku o te geomembrane, ā, ka pai te hononga i waenga i te geomembrane me te turanga kia kore ai e mimiti. - Tikanga Whakatakoto:
Ko ngā geomembranes ka honoa mā te whakarewa, mā te here rānei. I te wā e whakarewa ana, me whakarite kia tika te pāmahana, te tere me te pēhanga o te whakarewa. Hei tauira, mō ngā geomembranes kua whakarewahia ki te wera, ko te pāmahana whakarewa kei waenganui i te 200 - 300 °C, ko te tere whakarewa kei te 0.2 - 0.5m/min, ā, ko te pēhanga whakarewa kei waenganui i te 0.1 - 0.3MPa hei whakarite i te kounga o te whakarewa me te ārai i ngā raruraru turuturu i puta mai i te whakarewatanga ngoikore. - Hononga Āpiti:
He mea tino nui te hononga o ngā geomembrane ki te turanga o te tāhuna, ngā maunga i ngā taha e rua o te tāhuna, me ērā atu mea i te taha o te tāhuna. I te nuinga o te wā, ka whakamahia ngā awaawa punga, te taupoki raima, me ērā atu mea. Hei tauira, ka whakatakotoria he awaawa punga he 30 - 50cm te hohonu ki te turanga o te tāhuna. Ka whakatakotoria te taha o te geomembrane ki roto i te awaawa punga, ā, ka whakamaua ki ngā rauemi oneone kua whakakikoruatia, ki te raima rānei, kia piri ai te geomembrane ki ngā hanganga e karapoti ana, kia kore ai hoki e turuturu te wai.
3. Te Tiaki me te Tirotiro
- Te Tiaki Auau:
He mea tika kia tirohia tonutia mēnā he pakaru, he haehae, he poka, me ētahi atu mea kei runga i te mata o te geomembrane. Hei tauira, i te wā e whakahaerehia ana te tāhuna, ka taea e ngā kaimahi tiaki te tirotiro i te geomembrane kotahi i te marama, me te aro ki te tirotiro i ngā geomembrane i ngā wāhi e rerekē pinepine ana te taumata wai me ngā wāhi he nui ngā rerekētanga o te tinana o te tāhuna. - Ngā Tikanga Tirotiro:
Ka taea te whakamahi i ngā tikanga whakamātautau kore-whakangaro, pērā i te tikanga whakamātautau mura. I roto i tēnei tikanga, ka tukuna he ngaohiko motuhake ki te mata o te geomembrane. Ina pakaru te geomembrane, ka puta he mura, kia tere ai te kimi i ngā pūwāhi pakaru. Hei tāpiri, kei reira anō te tikanga whakamātautau korehau. Ka hangaia he āputa kati i waenganui i te geomembrane me te taputapu whakamātautau, ā, ka aromatawaihia te turuturu i roto i te geomembrane mā te tirotiro i te huringa o te nekehanga korehau.
Ngā tawhā hua
