Nkhani

Pambuyo pa milandu yambiri yokhudzana ndi zamoyo zam'madzi, zimaganiziridwa kuti poziyika pansi pa dziwe, madzi a m'dziwe amakhala olekanitsidwa ndi nthaka kuti akwaniritse cholinga choletsa madzi kuti asalowe. Ndi njira yabwino yogwiritsira ntchito polyethylene HDPE geomembrane yamphamvu kwambiri ngati chinsalu chapansi cha dziwe kuti chiteteze kutayikira.

Ukadaulo wopanga HDPE geomembrane waphwanya mfundo ya nsalu, ndipo imagwiritsa ntchito chidziwitso chamakono cha sayansi. Njira yake yopangira ndikukonza mwachisawawa ulusi waufupi wa nsalu kapena ulusi kuti apange mawonekedwe a fiber mesh.

Pakuyika kwa HDPE geomembrane, makwinya ochita kupanga ayenera kupewedwa momwe angathere. Mukayika HDPE geomembrane, kuchuluka kwa kukulitsa ndi kutsika komwe kumachitika chifukwa cha kusintha kwa kutentha kuyenera kusungidwa molingana ndi kusintha kwa kutentha komweko komanso zofunikira za HDPE geomembrane. Kuonjezera apo, kukula ndi kuchepa kwa geomembrane ziyenera kusungidwa molingana ndi malo a malo ndi geomembrane kuyala zinthu. Kuti azolowere kukhazikika kosagwirizana kwa maziko.

Kuyika ndi kuwotcherera kwa HDPE geomembrane kuyenera kuchitika pamene kutentha kuli pamwamba pa 5 ℃, mphamvu ya mphepo ili pansi pa mlingo wa 4, ndipo palibe mvula kapena matalala. Ntchito yomanga ya hdpe geomembrane ikuchitika motere: kuyika kwa geomembrane → kulumikiza zitsulo zowotcherera → kuwotcherera → kuyang'ana pamalo → kukonza → kuyang'ananso → kubwezeretsanso. M'lifupi mwake mwa kulumikizana pakati pa nembanemba sikuyenera kuchepera 80 mm. Nthawi zambiri, njira yolumikizirana imayenera kukhala yofanana ndi mzere wotsetsereka, ndiye kuti, wokonzedwa motsatira njira yotsetsereka.

Pambuyo pa kuikidwa kwa hdpe geomembrane, kuyenda pa nembanemba pamwamba, kunyamula zida, ndi zina zotero ziyenera kuchepetsedwa. Zinthu zomwe zingayambitse kuwonongeka kwa hdpe geomembrane siziyenera kuikidwa pa geomembrane kapena kunyamulidwa pamene mukuyenda pa geomembrane kuti musawononge hdpe membrane. kuwononga mwangozi. Onse ogwira ntchito pamalo omanga a membrane a HDPE saloledwa kusuta, saloledwa kuvala nsapato zokhala ndi misomali kapena nsapato zazitali zazitali zolimba kuti ayende pa nembanemba, ndipo samaloledwa kuchita chilichonse chomwe chingawononge anti-seepage membrane.

Pambuyo poyika hdpe geomembrane, isanaphimbidwe ndi chitetezo, thumba la mchenga la 20-40kg liyenera kuikidwa pa 2-5m iliyonse pamakona a nembanemba kuti geomembrane isawombedwe ndi mphepo. HDPE geomembrane anchorage iyenera kumangidwa molingana ndi kapangidwe kake. M'malo omwe ali ndi malo ovuta mu polojekitiyi, ngati nyumba yomangayo ikupereka njira zina zoyikirapo, iyenera kupeza chilolezo cha gulu lokonzekera ndi gulu loyang'anira musanayambe.

Udindo wa gulu la geomembrane mu engineering ya misewu yokhala ndi chitetezo chokhazikika
1. Udindo wa gulu la geomembrane mu engineering ya misewu

1. Kudzipatula

Kuyika geomembrane yophatikizika pakati pa zinthu ziwiri zosiyana, pakati pa mainchesi osiyanasiyana ambewu yazinthu zomwezo, kapena pakati pa nthaka ndi mawonekedwe apamwamba amatha kuzipatula. Pamene msewu wamtunda umakhudzidwa ndi katundu wakunja, ngakhale kuti zinthuzo Geomembrane yophatikizika imakanizidwa wina ndi mzake mokakamiza, koma chifukwa geomembrane yophatikizika imalekanitsidwa pakati, sichisakanikirana kapena kukhetsa wina ndi mzake, ndipo imatha kusunga zonse. kapangidwe ndi ntchito ya zinthu zoyambira msewu. Amagwiritsidwa ntchito kwambiri mu njanji, subgrades misewu, ntchito madamu nthaka-rock, nthaka yofewa Basic processing ndi ntchito zina.

2. Chitetezo

Gulu la geomembrane limatha kutengapo gawo pakubalalitsa kupsinjika. Pamene mphamvu yakunja imachokera ku chinthu chimodzi kupita ku china, imatha kuwola kupsinjika ndikuletsa nthaka kuti isawonongeke ndi mphamvu yakunja, potero imateteza zinthu zoyambira pamsewu. Ntchito yotetezera ya geomembrane yophatikizika makamaka kuteteza kukhudzana kwamkati, ndiko kuti, geomembrane yophatikizika imayikidwa pakati pa zida ziwiri pamtunda wapansi wamsewu. Chinthu chimodzi chikakhala ndi kupanikizika kwambiri, china sichidzawonongeka.

3. Kulimbikitsa zotsatira

Geomembrane yophatikizika imakhala ndi mphamvu zolimba kwambiri. Ikakwiriridwa m'nthaka kapena pamalo oyenera pamapangidwe amipanda, imatha kugawa kupsinjika kwa dothi kapena pansi, kusuntha kupsinjika, kuchepetsa kusamuka kwake, ndikuwonjezera kulumikizana kwake ndi dothi kapena msewu. Kukangana pakati pa zinthu zosanjikiza zomangira kumawonjezera mphamvu ya dothi kapena njira yopangira miyala ndi gulu la geosynthetic, potero kumalepheretsa mawonekedwe a dothi kapena njira yolowera, kulepheretsa kapena kuchepetsa kukhazikika kwa nthaka, ndikuwongolera nthaka. Kapena kukhazikika kwa njira yopangira misewu kumakhala ndi ntchito yolimbikitsa.

Ngakhale ma geomembranes ophatikizana amatenga maudindo ambiri pama projekiti apamsewu, amatenga maudindo osiyanasiyana oyambira komanso achiwiri m'malo osiyanasiyana apulojekiti. Mwachitsanzo, poyalidwa pakati pa miyala ya miyala ndi maziko a msewu waukulu, ntchito yodzipatula nthawi zambiri imakhala yaikulu, ndipo chitetezo ndi kulimbikitsa ndi Yachiwiri. Pomanga misewu pamaziko ofooka, mphamvu yolimbikitsa ya geomembrane yophatikizika imatha kuwongolera nthaka.