Hunhu hwevhu rakadzivirirwa hune simba pakuita kwe-anti-filtration.Iyo geotextile inonyanya kuita senge inokonzeresa mu-anti-filtration layer, iyo inosimudzira kuumbwa kweiyo yepamusoro denga uye yakasikwa sefa layer iri kumusoro kwegeotextile.Iyo yakasikwa sefa layer inoita basa muanti-filtration.Nokudaro, zvinhu zvevhu rakadzivirirwa zvine simba rinokosha pamaitiro e-inverted filter.Kana saizi yevhu yakaenzana nesaizi yepore ye geotextile, inowanzovharira mu geotextile.
Geotextiles inonyanya kuita basa rinobatsira mune inverted sefa
Nonuniformity coefficient yevhu inomiririra kusaziva kwekukura kwechidimbu, uye chiyero chechimiro chepore saizi ye geotextile OF kusvika kuchimiro chechikamu chesaizi DX chevhu chinofanira kutevedzera nonuniformity coefficient C μ Kuwedzera nekudzikira, uye zvidimbu zvevhu zvine saizi shoma pane. 0.228OF haigone kuumba overhead layer 20. Mamiriro ezvimedu zvevhu achakanganisa maitiro ekuchengetedza ivhu egeotextile.Kuongorora kweelectronic microscope kunoratidza kuti miswe yacho ine hunhu hurefu uye hupfupi hweaxis, izvo zvinokonzeresa anisotropy yese yemiswe.Zvisinei, hapana mhedziso yakajeka yehuwandu pamusoro pesimba rechimiro chechidimbu.Iyo ivhu rakadzivirirwa iro riri nyore kukonzera kutadza kweiyo inverted sefa ine mamwe maitiro akajairika.
Geotextiles inonyanya kuita basa rinobatsira mune inverted sefa
The German Society of Soil Mechanics uye Basic Engineering inokamura ivhu rakachengetedzwa kuita ivhu rine dambudziko uye ivhu rakagadzikana.Dambudziko revhu rinonyanya ivhu rine silt yakawanda, zvidimbu zvakanaka uye kushamwaridzana kwakaderera, iyo ine chimwe chezvinhu zvinotevera: ① iyo plasticity index iri pasi pe15, kana ivhu / silt content ratio iri pasi pe0.5;② Zviri muvhu rine particle size iri pakati pe0.02 ne0.1m inodarika 50%;③ Coefficient isina kuenzana C μ isingasviki gumi neshanu uye ine ivhu uye silt zvidimbu.Huwandu hwehuwandu hukuru hwegeotextile sefa yekutadza kesi dzakaona kuti geotextile sefa layer inofanirwa kudzivirira marudzi anotevera evhu sezvinobvira: ① isina-kubatana ivhu rakatsetseka rine chidimbu chimwe chete;② Ivhu rakaputsika-graded cohesionless;③ Ivhu rinoparadzira richapararira kuita zvidimbu zvidimbu nekufamba kwenguva;④ Ivhu rakapfuma mune iron ions.Bhatia kudzidza yaitenda kuti kusagadzikana kwemukati kwevhu kwakakonzera kutadza kwegeotextile sefa.Kudzikama kwemukati mevhu (internal stability) zvinoreva kugona kwezvidimbu zvakakasharara kudzivirira kuti zvidimbu zvinyoro zvisatakurwe nekuyerera kwemvura.Mazhinji maitiro akaumbwa ekudzidza kwevhu kugadzikana kwemukati.Kuburikidza nekuongorora uye kuoneswa kwe131 yakajairika maitiro eivhu hunhu hwe data seti, mamwe maitiro anoshanda akatsanangurwa.
Nguva yekutumira: Jan-12-2023