Geomembrane wai puna wai
ʻO ka wehewehe pōkole:
- ʻO nā Geomembranes i hoʻohana ʻia no nā dams reservoir i hana ʻia me nā mea polymer, ka nui o ka polyethylene (PE), polyvinyl chloride (PVC), a me nā mea ʻē aʻe. No ka laʻana, hana ʻia ka polyethylene geomembrane ma o ka hopena polymerization o ka ethylene, a paʻa loa kona ʻano molekala i hiki ʻole i nā molekole wai ke hele ma ia.
- ʻO nā Geomembranes i hoʻohana ʻia no nā dams reservoir i hana ʻia me nā mea polymer, ka nui o ka polyethylene (PE), polyvinyl chloride (PVC), a me nā mea ʻē aʻe. No ka laʻana, hana ʻia ka polyethylene geomembrane ma o ka hopena polymerization o ka ethylene, a paʻa loa kona ʻano molekala i hiki ʻole i nā molekole wai ke hele ma ia.
1.Nā ʻano hana
- Hana kūʻē i ka ʻike ʻana:
ʻO kēia ka hana koʻikoʻi o nā geomembranes i ka hoʻohana ʻana i nā dams reservoir. Hiki i nā geomembranes kiʻekiʻe ke loaʻa i ka helu permeability a hiki i ka 10⁻¹² - 10⁻¹³ cm/s, aneane e ālai ʻia i ka hele ʻana o ka wai. Ke hoʻohālikelike ʻia me ka pālolo kuʻuna anti-seepage layer, ʻoi aku ka maikaʻi o kāna hopena anti-seepage. No ka laʻana, ma lalo o ka paʻi poʻo wai hoʻokahi, ʻo ka nui o ka wai e kahe ana ma ka geomembrane he hapa wale nō ia ma o ka papa anti-seepage pālolo. - Hana Anai-Puhi:
I ka wā o ka hoʻohana ʻana i nā geomembranes ma nā pā wai, hiki ke hou ʻia lākou e nā mea ʻoi e like me nā pōhaku a me nā lālā i loko o ke kino wai. Loaʻa i nā geomembranes maikaʻi ka ikaika anti-puncture. No ka laʻana, loaʻa i kekahi mau geomembranes composite nā papa hoʻoikaika fiber i loko e hiki ke pale pono i ka puncturing. Ma ka ʻōlelo maʻamau, hiki i ka ikaika anti-puncture o nā geomembranes kūpono ke hiki i 300 - 600N, e hōʻoiaʻiʻo ʻaʻole lākou e pōʻino maʻalahi i loko o ke kaiapuni paʻakikī o ke kino dam. - Ke kūʻē i ka ʻelemakule:
No ka mea he lōʻihi ke ola o nā wai wai, pono e loaʻa i nā geomembranes ke kūpaʻa ʻelemakule maikaʻi. Hoʻohui ʻia nā mea hana anti-aging i ka wā o ka hana ʻana o nā geomembranes, e hiki ai iā lākou ke mālama i ka hana paʻa no ka manawa lōʻihi ma lalo o ka mana o nā mea kūlohelohe e like me nā kukui ultraviolet a me nā loli wela. No ka laʻana, hiki i nā geomembranes i hana ʻia me nā ʻano hana kūikawā a me nā ʻenehana hiki ke loaʻa ke ola lawelawe o 30 - 50 mau makahiki ma waho. - Hiki ke hoʻololi ʻia:
E loaʻa ana ka wai i kekahi mau deformations e like me ka hoʻonohonoho ʻana a me ka neʻe ʻana i ka wā o ka mālama ʻana i ka wai. Hiki i nā Geomembranes ke hoʻololi i kēlā mau deformation me ka ʻole o ka haki ʻana. No ka laʻana, hiki iā lākou ke kikoo a kūlou i kekahi ʻano me ka hoʻoponopono ʻana o ke kino dam. Hiki i ko lākou ikaika tensile ke hiki i ka 10 - 30MPa, hiki iā lākou ke pale i ke koʻikoʻi i hana ʻia e ka deformation o ke kino dam.
kness e like me ka pono o ka papahana. ʻO ka mānoanoa o ka geomembrane he 0.3mm a 2.0mm.
- Impermeability: E hōʻoia i ka geomembrane he impermeability maikaʻi e pale ai i ka wai o ka lepo mai ke komo ʻana i loko o ka papahana.
2.Construction Key Points
- Hoʻoponopono kumu:
Ma mua o ka waiho ʻana i nā geomembranes, pono e palahalaha a paʻa ke kumu o ka pā. Pono e hoʻoneʻe ʻia nā mea ʻoi, nā nāhelehele, nā ʻāina ākea a me nā pōhaku ma ka ʻili o ke kumu. No ka laʻana, pono e hoʻomalu ʻia ka hewa palahalaha o ke kumu i loko o ± 2cm. Hiki i kēia ke pale i ka geomembrane mai ka ʻoki ʻia ʻana a hōʻoia i ka pilina maikaʻi ma waena o ka geomembrane a me ke kumu i hiki ai ke hoʻokō ʻia kāna hana anti-seepage. - Ke Kaʻina Hana:
Hoʻopili pinepine ʻia nā Geomembranes e ka wili a i ʻole ka hoʻopaʻa ʻana. I ka wā e wili ai, pono e hōʻoia i ka mahana o ka welding, ka wikiwiki a me ke kaomi. No ka laʻana, no nā geomembranes wela-welded, maʻamau ka wela o ka welding ma waena o 200 - 300 °C, ʻo ka wikiwiki o ka welding ma kahi o 0.2 - 0.5m / min, a ʻo ke kaomi kuʻi ʻana ma waena o 0.1 - 0.3MPa e hōʻoia i ka maikaʻi o ka wiliwili a pale aku. nā pilikia leakage ma muli o ka wiliwili maikaʻi ʻole. - Pilipili pili:
ʻO ka pilina o nā geomembranes me ke kumu dam, nā mauna ma nā ʻaoʻao ʻelua o ka dam, a me nā mea ʻē aʻe ma ka ʻaoʻao o ka dam he mea nui loa. ʻO ka mea maʻamau, e ʻae ʻia nā ʻauwaha heleuma, ka hoʻopaʻa ʻana i ka lepo, a pēlā aku. No ka laʻana, hoʻonoho ʻia kahi ʻauwaha heleuma me ka hohonu o 30 - 50cm ma ke kumu dam. Hoʻokomo ʻia ka lihi o ka geomembrane i loko o ka ʻauwaha heleuma a hoʻopaʻa ʻia me nā mea lepo i hoʻopaʻa ʻia a i ʻole nā mea paʻa e hōʻoia i ka pili pono ʻana o ka geomembrane me nā hale a puni a pale i ka leakage peripheral.
3.Maintenance a nānā
- Ka mālama maʻamau:
Pono e nānā mau inā he poino, waimaka, punctures, etc. ma ka ʻili o ka geomembrane. No ka laʻana, i ka wā o ka hana o ka dam, hiki i nā limahana mālama ke hana i ka nānā ʻana i hoʻokahi manawa i ka mahina, e nānā ana i ka nānā ʻana i ka geomembrane ma nā wahi e loli pinepine ai ka pae wai a me nā wahi me nā deformations kino nui. - Nā Hana Nānā:
Hiki ke hoʻohana ʻia nā ʻenehana hoʻāʻo non-destructive, e like me ke ʻano hoʻāʻo spark. Ma kēia ʻano, hoʻohana ʻia kekahi volta i ka ʻili o ka geomembrane. I ka wā e poino ai ka geomembrane, e hoʻopuka ʻia nā huna ahi, i hiki ke ʻimi koke i nā wahi i poino. Eia kekahi, aia ke ʻano hoʻāʻo vacuum. Hoʻokumu ʻia kahi wahi paʻa ma waena o ka geomembrane a me ka mea hoʻāʻo, a ʻo ka noho ʻana o ka leakage i ka geomembrane e hoʻokolokolo ʻia ma ka nānā ʻana i ka loli o ka mākole.
Nā palena huahana
