Nkhani

Makhalidwe a nthaka yotetezedwa ali ndi mphamvu pa ntchito yotsutsa kusefera. Geotextile makamaka imagwira ntchito ngati chothandizira mu anti-filtration wosanjikiza, zomwe zimalimbikitsa mapangidwe a pamwamba pamutu ndi wosanjikiza wachilengedwe kumtunda kwa geotextile. Zosefera zachilengedwe zimagwira ntchito yoletsa kusefera. Choncho, katundu wa nthaka otetezedwa ndi yofunika kwambiri pa makhalidwe a inverted fyuluta. Ngati tinthu tating'onoting'ono tating'ono tating'ono tating'onoting'ono ta geotextile, ndiye kuti timatsekereza mu geotextile.

Ma geotextiles makamaka amatenga gawo lothandizira muzosefera zolowetsedwa
Nonuniformity coefficient of nthaka imayimira kusalingana kwa kukula kwa tinthu, ndipo chiŵerengero cha pore kukula kwa geotextile OF ku mawonekedwe a tinthu DX a nthaka ayenera kutsata nonuniformity coefficient C μ Kuchulukitsa ndi kuchepa, ndi tinthu tating'onoting'ono tocheperako. 0.228OF sangathe kupanga wosanjikiza pamwamba 20. Maonekedwe a tiziduswa tanthaka akhudza momwe nthaka imasungidwira geotextile. Kusanthula kwa maikulosikopu ya ma elekitironi kumawonetsa kuti michirayo imakhala ndi mawonekedwe aatali komanso aafupi a axis, zomwe zimapangitsa kuti ma anisotropy onse azitha. Komabe, palibe umboni womveka bwino wa kuchuluka kwa chikoka cha mawonekedwe a tinthu. Dothi lotetezedwa lomwe ndi losavuta kuyambitsa kulephera kwa fyuluta yolowera ili ndi mawonekedwe ena onse.
Ma geotextiles makamaka amatenga gawo lothandizira muzosefera zolowetsedwa
German Society of Soil Mechanics and Basic Engineering imagawa nthaka yotetezedwa kukhala dothi lamavuto ndi nthaka yokhazikika. Dothi lovuta limakhala makamaka dothi lokhala ndi silt wambiri, tinthu tating'onoting'ono komanso kulumikizana kochepa, komwe kumakhala ndi chimodzi mwazinthu izi: ① index ya pulasitiki ndi yochepera 15, kapena dongo / silt zomwe zili ndi dongo ndi zosakwana 0.5; ② Zomwe zili mu dothi lokhala ndi tinthu ting'onoting'ono pakati pa 0.02 ndi 0.1m ndizoposa 50%; ③ Coefficient yosiyana C μ Pansi pa 15 ndipo imakhala ndi dongo ndi silt particles. Ziwerengero zamilandu yochuluka ya zosefera za geotextile zinapeza kuti wosanjikiza wosefera wa geotextile uyenera kupewa mitundu iyi ya dothi momwe ingathere: ① dothi losalumikizana bwino lokhala ndi tinthu ting'onoting'ono; ② Dothi losweka losalumikizana; ③ Dongo lobalalika lidzamwazikana kukhala tinthu tating'ono ting'onoting'ono pakapita nthawi; ④ Nthaka yokhala ndi ayoni yachitsulo. Kafukufuku wa Bhatia adakhulupirira kuti kusakhazikika kwamkati kwa dothi kudayambitsa kulephera kwa fyuluta ya geotextile. Kukhazikika kwamkati kwa dothi kumatanthauza kuthekera kwa tinthu tambirimbiri toteteza tinthu tating'ono ting'onoting'ono kuti tisatengeke ndi kutuluka kwa madzi. Njira zambiri zapangidwa kuti ziphunzire kukhazikika kwamkati kwa nthaka. Kupyolera mu kusanthula ndi kutsimikizira kwa 131 njira zofananira za seti zamtundu wa nthaka, njira zambiri zogwiritsiridwa ntchito zaperekedwa.