Ama-geotextile ayizindwangu ezikhiqizwayo ezingenawo amanzi ezisetshenziswa kwezobunjiniyela bomphakathi nasekwakheni ukuthuthukisa ukusebenza kwenhlabathi nokulawula izinselele zemvelo. Lezi zinto zobuchwepheshe ze-geosynthetic zakhelwe ukwenza imisebenzi ebalulekile efana nokwehlukanisa, ukuhlunga, ukukhipha amanzi, ukuqinisa, nokuvikela emisebenzini eminingi ehlukahlukene. Zikhiqizwa kakhulu nge-polypropylene noma i-polyester, ama-geotextile aklanyelwe ukumelana nezimo ezinzima ezingaphansi komhlaba, ukuchayeka kumakhemikhali, nokucindezela okukhulu kwemishini isikhathi eside sokusebenza. Ukusetshenziswa kwawo okukhulayo emhlabeni wonke kuqhutshwa yisidingo sezixazululo ezingabizi kakhulu, eziqinile, nezinomthwalo wemfanelo kwezemvelo ekuthuthukisweni kwengqalasizinda. Njengoba imisebenzi yokwakha iba yinkimbinkimbi, iqhaza lama-geotextile ekuqinisekiseni ukuqina kwesakhiwo nokuphepha kwemvelo liyaqhubeka likhula ngokushesha.

Izindwangu zokweluka (woven geotextiles) zikhiqizwa ngokuhlanganisa imicu ngayinye emshinini wokweluka, okuholela endwangu enamandla amakhulu okudonsa nokwelula okuncane, okwenza zifaneleke kakhulu ekuginisekiseni nasekuzinziseni. Izindwangu ezingelukiwe (nonwoven geotextiles), ngakolunye uhlangothi, zikhiqizwa ngokuhlanganisa imicu ndawonye ngokusebenzisa ukugwaza ngenalithi, ukuhlanganisa ngokushisa, noma ukunamathelisa ngamakhemikhali, okuzinika izici ezinhle kakhulu zokuhlunga nokukhipha amanzi. Izindwangu ezilukiwe (knitted geotextiles), nakuba zingavamile, zakhiwa ngokuhlanganisa izihibe zemicu futhi zinikeza ibhalansi eyingqayizivele yamandla nokuvumelana nezimo kwezidingo ezikhethekile. Uhlobo ngalunye lwendwangu luklanyelwe ukuhlangabezana nemfuneko ethile yokusebenza echazwe ezindinganisweni ezifana ne-aashto m288, enikeza imihlahlandlela yokukhetha i-geotextile efanele ngokusekelwe ezidingweni zephrojekthi. Ukuqonda umehluko phakathi kwalezi zinhlobo zezinto kubalulekile konjiniyela nosonkontileka okumele baqondanise izici zendwangu nezidingo zokusebenza kwabo okuthile.

Imisebenzi emihlanu eyinhloko yama-geotextile—ukwehlukanisa, ukuhlunga, ukukhipha amanzi, ukuqinisa, nokuvikela—isebenza ndawonye ukuxazulula izinkinga eziyinkimbinkimbi zobunjiniyela bomhlaba ekwakheni nasebunjiniyela bemvelo. Ukwehlukanisa kuvimbela ukuxubana kwezingqimba zenhlabathi ezingafani, njengaphakathi kwesisekelo somgwaqo nendawo eyisisekelo, kugcine ubuqotho besakhiwo semigwaqo nezisekelo. Ukuhlunga kuvumela amanzi ukuba adlule endwangu kuyilapho kugcina izinhlayiya zenhlabathi, okubalulekile ekuvimbeleni ukuguguleka komhlabathi nokugcina ukusebenza kohlelo lokukhipha amanzi. Ukukhipha amanzi kuhilela ukugeleza kwamanzi ngaphakathi kwesakhiwo se-geotextile, kusiza ukunciphisa ingcindezi yamanzi ezinkabeni zenhlabathi nokuthuthukisa ukuzinza kwemithambeka. Ukuqinisa kwengeza amandla okudonsa ezinhlabathini, kuvumela imithambeka emishubile, izingqimba zomgwaqo ezincanyana, nokusetshenziswa kahle kwezinto zokugcwalisa, kuyilapho ukuvikela kuvikela ama-geomembrane nezinye izinto ezingangeni amanzi ekulimaleni kokugwazwa ngesikhathi sokufakwa nokusebenza.

Ukulawula ukuguguleka emithambekeni kungenye yezindlela ezivame kakhulu nezibalulekile zokusetshenziswa kwama-geotextile kukho kokubili ubunjiniyela bomphakathi nokuphathwa kwezindawo zemvelo, njengoba imithambeka engavikelwe isengozini enkulu yokugeleza kwamanzi phezu komhlabathi kanye nesimo sezulu. Uma afakwe ezindaweni eziwumthambeka, ama-geotextile asebenza njengongqimba oluvikelayo olwehlisa amandla amaconsi emvula futhi anciphise ukugeleza kwamanzi phezu komhlabathi, okunciphisa kakhulu ukuhlukaniswa kwezinhlayiya zomhlabathi nokuthuthwa kwazo. Indwangu iphinde ikhuthaze ukumila kwezitshalo ngokuhlinzeka indawo ezinzile yokukhula kwezimpande, okuqinisa umhlabathi futhi kuthuthukise ukuqina kwesikhathi eside. Ngaphezu komsebenzi wazo wokuvikela osheshayo, ama-geobag—iziqukathi ezinkulu ze-geotextile ezigcwele umhlabathi noma isihlabathi—avame ukusetshenziswa ukwakha izakhiwo zokugcina umhlabathi emithambekeni emishoshobala nasezindongeni zomgwaqo. Ukuhlanganisa ama-geotextile nezinye izindlela zokulawula ukuguguleka, njengama-geocell nama-turf reinforcement mats, kwakha uhlelo oluphelele olungamelana nezigameko zemvula enamandla futhi luvimbele ukubhidlika kwemithambeka okubizayo.

Imifula ihlala ichayeka emandleni e-hydraulic avela emanzini agelezayo, ekushayweni kwamagagasi, nasekushintsheni kwamazinga amanzi, okwenza kube lula ukuguguleka nokucekeleka phansi kwesakhiwo ngokuhamba kwesikhathi. Ama-geotextile ahlinzeka ngomgoqo osebenzayo ohlukanisa inhlabathi engaphansi namandla okuguguleka kwamanzi kuyilapho evumela ukukhishwa kwamanzi ngokwemvelo ngaphandle kokwakha ingcindezi ye-hydrostatic. I-geotextile tube, okuwumphakathi omkhulu onjengeshubhu owenziwe ngendwangu ye-geotextile enamandla amakhulu, ivamise ukufakwa eduze kwemifula igcwaliswe ngesihlabathi noma ngodaka ukuze yakhe isakhiwo sokuvikela esiqinile nesiguquguqukayo. Lawa mashubhu angafakwa esitaki noma ahlelwe ukuze akhe izinhlelo zokuvikela imifula ezinikezela ngezigaba, ezihlangana nemvelo futhi zisekele izitshalo zasemfuleni. Ukusetshenziswa kwama-geotextile ekuqiniseni imifula akugcini nje ngokuvikela ingqalasizinda nempahla, kodwa futhi kugcina izindawo zokuhlala zasemanzini ngokunciphisa ukuguguleka kwenhlabathi nokugcina izinga lamanzi.

Izindawo ezisogwini zethula ezinye zezinselelo ezinzima kakhulu zokulawula ukuguguleka komhlaba ngenxa yamandla ahlangene amagagasi, amagagasi olwandle, iziphepho, kanye nokukhuphuka kwezinga lolwandle okuqhubeka kulungisa ugu. Izindwangu ze-geotextile ziya zisetshenziswa kakhulu emisebenzini yokuvikela ogwini njengengxenye yezindlela zobunjiniyela obuthambile ezisebenzisana nezinqubo zemvelo kunokuba zilwe nazo. Amashubhu e-geotextile agcwele isihlabathi neziqukathi zisetshenziselwa ukwakha izivimbeli zamagagasi ezingaphansi kwamanzi, izixhobo zokudala amadwala okwenziwa, kanye nezinhlelo zokuqinisa izindunduma ezihlakaza amandla amagagasi futhi zibambe inhlabathi. Lezi zakhiwo ziyaguquguquka kakhulu, zingafakwa ngokushesha ngaphandle kwemishini esindayo, futhi zidinga ukunakekelwa okuncane kunezindonga zikakhonkolo noma zamatshe zendabuko. Ukuhlanganiswa kwe-geotextile ezinhlelweni zokuvikela ogwini kunikeza enye indlela esimeme futhi enezindleko eziphansi engalungiswa ngokuya ngezimo zendawo futhi ikhuliswe ngokwesidingo ngokuhamba kwesikhathi.

Emgwaqweni wokwakha imigwaqo, ama-geotextile adlala indima ebalulekile ekuthuthukiseni ukusebenza nokuphila isikhathi eside kwemigwaqo ngokuqinisa umhlabathi ongaphansi nokuvimbela ukuxubana kwezinto. Lapho efakwa phakathi komhlabathi ongaphansi nendawo eyisisekelo yamatshe, ungqimba lwe-geotextile lusabalalisa imithwalo yezimoto ngokulinganayo, lunciphisa ukugcwala kwengcindezi futhi lunciphisa ukuguguleka nokushintshashintsha kwesimo phakathi nempilo yomgwaqo. Lo msebenzi wokuhlukanisa ubaluleke kakhulu emhlabathini othambile noma ogcwele amanzi lapho amatshe engazange agqobhozele emhlabathini ongaphansi, okuholela ekonakaleni okusheshayo kwesakhiwo. Ngokuqinisa umhlabathi ongaphansi, ama-geotextile nawo avumela izingxenye zomgwaqo ezincanyana, okunciphisa izindleko zezinto zokwakha nesikhathi sokwakha ngaphandle kokunciphisa ukusebenza. Ukusetshenziswa kwama-geotextile asezingeni eliphezulu alukiwe nangawona alukiwe ahlangabezana nezimfuneko ezifana ne-aashto m288 kuqinisekisa ukuthi imisebenzi yemigwaqo ifinyelela amandla adingekayo nokuqina kwemithwalo enzima yezimoto nezimo zezulu ezihlukahlukene.

Izisekelo kufanele zithwale wonke umthwalo wesakhiwo, okwenza ukuzinza kwenhlabathi ngaphansi kwazo kubaluleke kakhulu ekuphepheni nasekuphileni isikhathi eside kwezakhiwo, amabhuloho, nolunye ingqalasizinda. Ama-geotextile asetshenziselwa ukuqinisa izinhlabathi zezisekelo ngokunikeza amandla okudonsa (tensile strength) ahambisana namandla okucindezela (compressive strength) enhlabathi, okudala into ehlanganisiwe engakwazi ukuthwala imithwalo emikhulu ngokuncipha kokugxagxazela (settlement). Indwangu ivamise ukubekwa ngezingqimba ngaphakathi kwenhlabathi, ngokuvamile ihlanganiswe nokugcwaliswa kwezinhlamvu (granular fill), ukuze kwakhiwe izisekelo zenhlabathi eziqinisiwe ezisabalalisa imithwalo endaweni ebanzi futhi zinciphise ukugxagxazela okungalingani. Le nqubo ibaluleke kakhulu lapho ukwakha kufanele kwenzeke enhlabathini ebuthakathaka noma eguquguqukayo lapho imiklamo yezisekelo evamile ingabiza kakhulu noma ingenzeki ngokobuchwepheshe. I-Geofantex Geosynthetics inikeza uhla olubanzi lwe-Ukuqiniswa Komhlabathiizixazululo eziklanyelwe ukuhlangabezana nezidingo eziqondile zamaphrojekthi ezisekelo ezimweni ezahlukahlukene ze-geotechnical.

Imithambeka isetshenziswa kakhulu emaphrojekthini ezokuthutha, ezinhlelweni zokulawula izikhukhula, nasekubuyiseleni umhlaba, idinga izakhiwo zomhlaba eziqinile ezingamelana nokulayishwa okungaguquki nokuguquguqukayo isikhathi eside. Ama-geotextile athuthukisa ukuqina kwemithambeka ngokuqinisa inhlanganisela yomhlaba, ukuthuthukisa ukukhipha amanzi, nokuvimbela ukuguguleka kwezinto zokugcwalisa ngesikhathi sokwakha nangaso sonke isikhathi sokusebenza kwesakhiwo. Uma efakwe phansi kwemithambeka, ama-geotextile asabalalisa isisindo sokugcwalisa ngokulinganayo emhlabathini oyisisekelo ongaphansi, enciphisa ubungozi bokwehluleka komthwalo nokwehla ngokweqile. Ukufakwa kwama-geotextile ekwakhiweni kwemithambeka nakho kuvumela ukusetshenziswa kwezinto zokugcwalisa ezisezingeni eliphansi, okunciphisa izindleko zephrojekthi nomthelela wezemvelo kuyilapho kusahlangatshezwana nezidingo zokusebenza. Ngokuhlanganisa ama-geotextile neminye imikhiqizo ye-geosynthetic, onjiniyela bangakha imithambeka eqinisiwe ehlangabezana nokwakheka okuqinile kanye nokusimama kwemvelo.

Idizayini yanamuhla yokulahla imfucuza incike ezinhlelweni eziyinkimbinkimbi zokukhipha amanzi ukuze ilawule i-leachate—uketshezi olungena emfucuzeni futhi lungaqukatha izinto eziyingozi uma lungaqoqwa futhi lwelashwa kahle. Ama-geotextiles ayisici esibalulekile ezinhlelweni zokuqoqa i-leachate, esebenza njengezingqimba zokuhlunga ezivumela i-leachate ukuthi igeleze ngokukhululeka ingene emapayipini okukhipha amanzi kuyilapho ivimbela izinhlayiya ezincane ukuthi zingavali uhlelo. Ama-nonwoven geotextiles, ngokungena kwamanzi kwawo okuphezulu nezici ezinhle zokuhlunga, avame ukusetshenziswa kanye nezingqimba zokukhipha amanzi eziyimbudumbudu nama-geomembranes ukuze kwakhiwe amanethiwekhi okuqoqa athembekile. Lezi zihlungi ze-geotextile kumele zigcine ukusebenza kwazo emashumini eminyaka zivezwe ku-leachate enamakhemikhali ayingozi kanye nemisebenzi yezinto eziphilayo, okwenza ukukhethwa kwezinto zokwakha nokuqinisekiswa kwekhwalithi kubaluleke kakhulu. I-Geofantex ihlinzeka ngezixazululo ezihlanganisiwe ze-Indawo Yokulahla Imfucuza izinhlelo ezihlanganisa ama-geotextile nama-geomembrane, ama-geonet, kanye nama-clay liners ukuze kuqinisekiswe ukuvalwa okuphelele nokuphathwa kahle kwe-leachate phakathi nesikhathi sokusebenza kwe-landfill nangemva kokuvalwa.

Izindonga zokugcina umhlaba kumele zilawule kokubili ingcindezi yomhlaba eseceleni evela emhlabathini ogciniwe kanye nengcindezi ye-hydrostatic ekhuphukayo lapho amanzi enqwabelana ngemva kwesakhiwo sodonga. Ama-geotextile asetshenziswa njengezingqimba zokukhipha amanzi ngemva kwezindonga zokugcina umhlaba ukuze kwehliswe ingcindezi yamanzi emgodini, kuvinjelwe ukugudluka komhlabathi, futhi kugcinwe ukuqina kwesikhathi eside kwesistimu yodonga. Isistimu yokukhipha amanzi ye-geotextile eklanywe kahle ivumela amanzi ukuthi ageleze ngokukhululeka aye emapayipini okuqoqa noma ezimbotsheni zokukhipha amanzi ngenkathi igcina umhlabathi ozungezile endaweni yawo, okubalulekile ekuvimbeleni ukuwa kodonga nokonakala kwesakhiwo. Uma esongwe emapayipini okukhipha amanzi anezimbobo noma ebekwe njengeshidi eliqhubekayo libhekene nomhlabathi ogcwalisiwe, ama-geotextile ahlinzeka ngokusebenza kokuhlunga okungaguquki okuvikela udonga ekubhajweni nasekonakaleni ngokuhamba kwesikhathi. Ezinhlelweni zokukhipha amanzi ezidinga kakhulu, izinto ezihlanganisiwe ze-geocomposite ezihlanganisa i-geotextile ne-I-Drainage Geonet1 i-core inikeza amandla aphezulu okugeleza futhi ingafakwa ngokushesha ngokugubha okuncane kunezendlalelo zokukhipha amanzi ezivamile.

Geofantex Geosynthetics ithuthukise uhlu olubanzi lwemikhiqizo ye-geotextile esezingeni eliphezulu eklanyelwe ukuhlangabezana nezidingo ezahlukahlukene zobunjiniyela bomphakathi, ukuvikelwa kwemvelo, kanye namaphrojekthi okwakha emhlabeni wonke. Uhlu lwemikhiqizo yenkampani luhlanganisa ama-geotextile alukiwe okuginisa nokuzinzisa, ama-geotextile angalukiwe okuhlunga nokukhipha amanzi, kanye nemikhiqizo ekhethekile efana namashubhu e-geotextile nama-geobag okulawula ukuguguleka komhlabathi nokusetshenziswa kwamanzi. Umkhiqizo ngamunye ukhiqizwa kusetshenziswa ubuchwepheshe obuthuthukile bokukhiqiza futhi udlula ukuhlolwa kwekhwalithi okuqinile ukuze kuqinisekiswe ukuthobela amazinga omhlaba wonke, okuhlanganisa nezidingo eziqinile ze-aashto m288. I-Geofantex iphinde inikeze izixazululo ezenziwe ngokwezifiso, ilungisa izicaciso zendwangu ezifana namandla okudonsa, ukungena kwamanzi, nokumelana ne-UV ukuze ihambisane nezidingo eziyingqayizivele zamaphrojekthi ngamunye. Emaphrojekthini adinga ukulawulwa kokuguguleka komhlabathi ezingqimbeni zemithambeka nasemigudwini, inkampaniI-Geocell imikhiqizo inikeza ukuvinjelwa kwezinto ezintathu okuzinzisa umhlabathi futhi kukhuthaze ukukhula kwezitshalo, kanti Ukulawulwa Kokuguguleka Komhlabathi izixazululo zihlanganisa izinto eziningi ze-geosynthetic ukuze kuvikelwe indawo ngokuphelele.

IGeofantex iphumelele ukuhlinzeka ngezixazululo ze-geotextile kumaphrojekthi angamakhulu emikhakheni ehlukahlukene, okubonisa ukusebenza kahle kwemikhiqizo yabo ezimweni eziyinselele zomhlaba wangempela. Kokunye icala eliphawulekayo, inkampani yahlinzeka nge-geotextiles elukiwe enamandla aphezulu kuphrojekthi enkulu yokwandisa umgwaqo omkhulu lapho inhlabathi ethambile engaphansi yayidinga ukuqiniswa okubanzi ukuze isekele imithwalo enzima yezimoto. Ukufakwa kwama-geotextiles e-Geofantex kwavumela ithimba lephrojekthi ukuthi lehlise ubukhulu besisekelo se-aggregate ngamaphesenti angu-30 ngenkathi lisadlula izimfuneko zokusebenza zomklamo. Omunye umsebenzi wawuhilela ukusetshenziswa kwamashubhu e-geotextile ekubuyiseleni ogwini, lapho izakhiwo zaphumelela khona ukuvimbela inhlabathi futhi zakhuthaza ukuvuselela kwemvelo kwezinhlelo zamabhishi nezindunduma zezihlabathi ezinkathini ezimbalwa zonyaka. Ukukhethwa okuningiliziwe kwamaphrojekthi aqediwe kungatholakala ku-Izifundo Zesimo ikhasi, elinikeza ulwazi lobuchwepheshe nokudonswa kokusebenza konjiniyela abahlola izixazululo ze-geotextile. Ulwazi lwenkampani ezimweni ezahlukahlukene zokusebenza—kusukela ekuvaleni imigodi yokulahla imfucuza nokusebenza kwezimayini kuya ekuvikelweni kosebe lomfula nokukhipha amanzi kwezolimo—kugqamisa ukuguquguquka nokwethembeka kwemikhiqizo yabo ezimweni ezijwayelekile nezimbi kakhulu.

Ukusetshenziswa kabanzi kwama-geotextile emkhakheni wezokwakha kanye nobunjiniyela bezemvelo kuqhutshwa izinzuzo ezicacile nezilingisekayo ezilethwa ngama-geotextile mayelana nokusebenza, ukonga kwezindleko, kanye nokusebenza kahle kwephrojekthi. Ama-geotextile anciphisa isidingo sezinto zokugcwalisa ezibizayo ezingenisiwe ngokuvumela onjiniyela ukuthi basebenzise inhlabathi etholakala endaweni eqiniswa futhi iqiniswe endaweni, kunciphisa izindleko zempahla nezokuthutha kakhulu. Ashehlela izikhathi zokwakha ngokwenza lula izinqubo zokufaka nokunciphisa inani lezingqimba nezinto ezidingekayo ekwakhiweni kwesigaba esijwayelekile. Ukuqina kwama-geotextile anamuhla, uma ekhethwe kahle futhi efakwe kahle, kuqinisekisa ukuthi izakhiwo zigcina izici zazo zokusebenza amashumi eminyaka ngezidingo ezincane zokunakekela. I-Geofantex Geosynthetics, ngokuzibophezela kwayo kwekhwalithi nokusungula izinto ezintsha, izimise njengozakwethu othembekile wonjiniyela nosonkontileka abafuna izixazululo ze-geotextile ezithembekile. Ulwazi oluningi mayelana nomgomo wenkampani namandla okukhiqiza lungatholakala ku-MAYELANA NATHI ikhasi, elichaza uhambo lwabo kusukela ngo-2014 kanye nenethiwekhi yabo yokulethwa emhlabeni wonke.

Ama-geotextile afaka isandla ngqo ezenzweni zokwakha ezisimeme ngokuvumela amaphrojekthi asebenzisa izinsiza zemvelo ezimbalwa, akhiqize imfucuza encane, futhi abe nomkhondo wekhabhoni ophansi uma kuqhathaniswa nezindlela zokwakha ezijwayelekile. Ikhono lokuzinzisa nokuqinisa inhlabathi endaweni yayo linciphisa isidingo samatshe aqoshwa ezinkwalini futhi linciphisa ukuphazamiseka kwemvelo okuhambisana nokumbiwa nokuthuthwa kwezinto zokwakha. Izinhlelo zokulawula ukuguguleka komhlaba ezisekelwe kuma-geotextile zivikela ikhwalithi yamanzi ngokuvimbela ukuguguleka kwenhlabathi ukuba kungangeni emifuleni nasemifudlaneni, kugcinwe izinhlobo zezinto eziphilayo zasemanzini futhi kuncishiswe isidingo sokulungisa okubizayo. Isikhathi eside sokusebenza kwama-geotextile, kuhlanganiswe nokumelana kwawo nokonakala kwamakhemikhali nokwebhayoloji, kusho ukuthi izakhiwo ezakhiwe ngalezi zinto zidinga ukungenelela nokushintshwa okuncane phakathi nesikhathi sazo sokusebenza. Njengoba izidingo zengqalasizinda zomhlaba wonke ziqhubeka zikhula, iqhaza lezixazululo zezinto ze-geosynthetic njengalezo ezinikezwa yiGeofantex lizoba semqoka kakhulu ekwakheni izakhiwo eziqinile, ezinomthwalo wemfanelo wemvelo ezihlangabezana nezidingo zezizukulwane zanamuhla nezesikhathi esizayo.